/* compute local smoothness weight as a sigmoid on image gradient*/
image_t* compute_dpsis_weight(color_image_t *im, float coef, const convolution_t *deriv) {
image_t* lum = image_new(im->width, im->height), *lum_x = image_new(im->width, im->height), *lum_y = image_new(im->width, im->height);
int i;
// ocompute luminance
v4sf *im1p = (v4sf*) im->c1, *im2p = (v4sf*) im->c2, *im3p = (v4sf*) im->c3, *lump = (v4sf*) lum->data;
for( i=0 ; i<im->height*im->stride/4 ; i++){
*lump = (0.299f*(*im1p) + 0.587f*(*im2p) + 0.114f*(*im3p))/255.0f;
lump+=1; im1p+=1; im2p+=1; im3p+=1;
}
// compute derivatives with five-point tencil
convolve_horiz(lum_x, lum, deriv);
convolve_vert(lum_y, lum, deriv);
// compute lum norm
lump = (v4sf*) lum->data;
v4sf *lumxp = (v4sf*) lum_x->data, *lumyp = (v4sf*) lum_y->data;
for( i=0 ; i<lum->height*lum->stride/4 ; i++){
*lump = -coef*__builtin_ia32_sqrtps( (*lumxp)*(*lumxp) + (*lumyp)*(*lumyp));
lump[0][0] = 0.5f*expf(lump[0][0]);
lump[0][1] = 0.5f*expf(lump[0][1]);
lump[0][2] = 0.5f*expf(lump[0][2]);
lump[0][3] = 0.5f*expf(lump[0][3]);
lump+=1; lumxp+=1; lumyp+=1;
}
image_delete(lum_x);
image_delete(lum_y);
return lum;
}
/* resize an image with bilinear interpolation to fit the new weidht, height ; reallocation is done if necessary */
void image_resize_bilinear_newsize(image_t *dst, const image_t *src, const int new_width, const int new_height){
resize_if_needed_newsize(dst,new_width,new_height);
if(new_width < new_height){
image_t *tmp = image_new(new_width,src->height);
image_resize_horiz(tmp,src);
image_resize_vert(dst,tmp);
image_delete(tmp);
}else{
image_t *tmp = image_new(src->width,new_height);
image_resize_vert(tmp,src);
image_resize_horiz(dst,tmp);
image_delete(tmp);
}
}
void image_fits_get_info(char *filename, double *ra_ptr, double *dec_ptr, double *exp_ptr, u_int64_t *number_ptr, time_str *time_ptr)
{
fitsfile *fits;
image_str *image = image_create(0, 0);
int status = 0; /* Error code for CFITSIO library */
fits_open_file(&fits, filename, READONLY, &status);
/* Read all keywords we may need */
image_keywords_from_fits(image, fits);
if(exp_ptr)
*exp_ptr = image_keyword_get_double(image, "EXPOSURE");
if(ra_ptr)
*ra_ptr = 15.0*image_keyword_get_sexagesimal(image, "RA");
if(dec_ptr)
*dec_ptr = image_keyword_get_sexagesimal(image, "DEC");
if(time_ptr)
*time_ptr = time_str_from_date_time(image_keyword_get_string(image, "TIME"));
if(number_ptr)
*number_ptr = image_keyword_get_int64(image, "FRAMENUMBER");
fits_close_file(fits, &status);
image_delete(image);
}
void texture_write_to_file(texture* t, char* filename){
image* i = texture_get_image(t);
image_write_to_file(i, filename);
image_delete(i);
}
void imagetest_write(void)
{
struct image *image;
uint32_t i;
struct rect rect;
image = image_new(IMAGE_TYPE_8, 640, 480);
image_putline(image, 20, 460, 620, 20, 60);
image_putellipse(image, 320, 240, 300, 200, 64, 180);
image_putcircle(image, 320, 240, 80, 64, 195);
rect.x = 60;
rect.y = 300;
rect.w = 580;
rect.h = 180;
image_putrect(image, &rect, 80);
for(i = 0; i < 256; i++)
image_putpixel(image, 20 + i, 50, i);
/* image_putstr(image, &image_font_6x10, 100, 40, 12, IMAGE_ALIGN_LEFT, "libchaos rocks!");
image_putstr(image, &image_font_6x10, 160, 80, 11, IMAGE_ALIGN_LEFT, "dschoint");*/
image_save_gif(image, "lala.gif");
image_delete(image);
}
void image_list_delete(image_list_t *list) {
int i;
for(i=0;i<list->size;i++)
image_delete(list->data[i]);
free(list->data);
free(list);
}
/* return a resize version of the image with bilinear interpolation */
image_t *image_resize_bilinear(const image_t *src, const float scale){
const int width = src->width, height = src->height;
const int newwidth = (int) (1.5f + (width-1) / scale); // 0.5f for rounding instead of flooring, and the remaining comes from scale = (dst-1)/(src-1)
const int newheight = (int) (1.5f + (height-1) / scale);
image_t *dst = image_new(newwidth,newheight);
if(height*newwidth < width*newheight){
image_t *tmp = image_new(newwidth,height);
image_resize_horiz(tmp,src);
image_resize_vert(dst,tmp);
image_delete(tmp);
}else{
image_t *tmp = image_new(width,newheight);
image_resize_vert(tmp,src);
image_resize_horiz(dst,tmp);
image_delete(tmp);
}
return dst;
}
static int save_noise_to_file_thread(void* unused) {
image* noise = perlin_noise_generate(512, 512, 8);
image_tga_save_file(noise, "./perlin_noise.tga");
debug("Noise saved as perlin_noise.tga");
image_delete(noise);
ui_spinner* save_spinner = ui_elem_get("save_spinner");
save_spinner->color.w = 0;
currently_saving = false;
return 0;
}
texture* bmp_load_file( char* filename ) {
image* i = image_bmp_load_file(filename);
texture* t = texture_new();
glBindTexture(GL_TEXTURE_2D, texture_handle(t));
glTexParameteri( GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_FALSE );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0 );
texture_set_image(t, i);
texture_set_filtering_anisotropic(t);
image_delete(i);
return t;
}
static int save_noise_to_file_thread(void* unused) {
image* noise = perlin_noise_generate(512, 512, 8);
image_tga_save_file(noise, "./perlin_noise.tga");
debug("Noise saved as perlin_noise.tga");
image_delete(noise);
ui_spinner* save_spinner = ui_elem_get("save_spinner");
ui_rectangle* spinner_box = ui_elem_get("spinner_box");
save_spinner->color = vec4_new(1,1,1,0);
spinner_box->color = vec4_new(0,0,0,0);
spinner_box->border_color = vec4_new(1,1,1,0);
currently_saving = false;
return 0;
}
void graphics_viewport_screenshot() {
unsigned char* image_data = malloc( sizeof(unsigned char) * graphics_viewport_width() * graphics_viewport_height() * 4 );
glReadPixels( 0, 0, graphics_viewport_width(), graphics_viewport_height(), GL_BGRA, GL_UNSIGNED_BYTE, image_data );
image* i = image_new(graphics_viewport_width(), graphics_viewport_height(), image_data);
free(image_data);
timestamp(timestamp_string);
screenshot_string[0] = '\0';
strcat(screenshot_string, "./corange_");
strcat(screenshot_string, timestamp_string);
strcat(screenshot_string, ".tga");
image_write_to_file(i, screenshot_string);
image_delete(i);
}
float *bw_gist_scaletab(image_t *src, int w, int n_scale, const int *n_orientation)
{
int i;
if(src->width < 8 || src->height < 8)
{
fprintf(stderr, "Error: bw_gist_scaletab() - Image not big enough !\n");
return NULL;
}
int numberBlocks = w;
int tot_oris=0;
for(i=0;i<n_scale;i++) tot_oris+=n_orientation[i];
image_t *img = image_cpy(src);
image_list_t *G = create_gabor(n_scale, n_orientation, img->width, img->height);
prefilt(img, 4);
float *g = gist_gabor(img, numberBlocks, G);
for(i = 0; i < tot_oris*w*w; i++)
{
if(!finite(g[i]))
{
fprintf(stderr, "Error: bw_gist_scaletab() - descriptor not valid (nan or inf)\n");
free(g); g=NULL;
break;
}
}
image_list_delete(G);
image_delete(img);
return g;
}
int main(int argc, char **argv){
if( argc<6){
if(argc>1) fprintf(stderr,"Error, not enough arguments\n");
usage();
exit(1);
}
// read arguments
color_image_t *im1 = color_image_load(argv[1]);
color_image_t *im2 = color_image_load(argv[2]);
float_image edges = read_edges(argv[3], im1->width, im1->height);
float_image matches = read_matches(argv[4]);
const char *outputfile = argv[5];
// prepare variables
epic_params_t epic_params;
epic_params_default(&epic_params);
variational_params_t flow_params;
variational_params_default(&flow_params);
image_t *wx = image_new(im1->width, im1->height), *wy = image_new(im1->width, im1->height);
// read optional arguments
#define isarg(key) !strcmp(a,key)
int current_arg = 6;
while(current_arg < argc ){
const char* a = argv[current_arg++];
if( isarg("-h") || isarg("-help") )
usage();
else if( isarg("-nw") )
strcpy(epic_params.method, "NW");
else if( isarg("-p") || isarg("-prefnn") )
epic_params.pref_nn = atoi(argv[current_arg++]);
else if( isarg("-n") || isarg("-nn") )
epic_params.nn = atoi(argv[current_arg++]);
else if( isarg("-k") )
epic_params.coef_kernel = atof(argv[current_arg++]);
else if( isarg("-i") || isarg("-iter") )
flow_params.niter_outer = atoi(argv[current_arg++]);
else if( isarg("-a") || isarg("-alpha") )
flow_params.alpha= atof(argv[current_arg++]);
else if( isarg("-g") || isarg("-gamma") )
flow_params.gamma= atof(argv[current_arg++]);
else if( isarg("-d") || isarg("-delta") )
flow_params.delta= atof(argv[current_arg++]);
else if( isarg("-s") || isarg("-sigma") )
flow_params.sigma= atof(argv[current_arg++]);
else if( isarg("-sintel") ){
epic_params.pref_nn= 25;
epic_params.nn= 160;
epic_params.coef_kernel = 1.1f;
flow_params.niter_outer = 5;
flow_params.alpha = 1.0f;
flow_params.gamma = 0.72f;
flow_params.delta = 0.0f;
flow_params.sigma = 1.1f;
}
else if( isarg("-kitti") ){
epic_params.pref_nn= 25;
epic_params.nn= 160;
epic_params.coef_kernel = 1.1f;
flow_params.niter_outer = 2;
flow_params.alpha = 1.0f;
flow_params.gamma = 0.77f;
flow_params.delta = 0.0f;
flow_params.sigma = 1.7f;
}
else if( isarg("-middlebury") ){
epic_params.pref_nn= 15;
epic_params.nn= 65;
epic_params.coef_kernel = 0.2f;
flow_params.niter_outer = 25;
flow_params.alpha = 1.0f;
flow_params.gamma = 0.72f;
flow_params.delta = 0.0f;
flow_params.sigma = 1.1f;
}
else{
fprintf(stderr, "unknown argument %s", a);
usage();
exit(1);
}
}
// compute interpolation and energy minimization
color_image_t *imlab = rgb_to_lab(im1);
epic(wx, wy, imlab, &matches, &edges, &epic_params, 1);
// energy minimization
variational(wx, wy, im1, im2, &flow_params);
// write output file and free memory
writeFlowFile(outputfile, wx, wy);
color_image_delete(im1);
color_image_delete(imlab);
color_image_delete(im2);
free(matches.pixels);
free(edges.pixels);
image_delete(wx);
image_delete(wy);
return 0;
}
static bool
test_simple_errors(GLenum src_target, GLenum dst_target)
{
bool pass = true;
GLuint i, src, src2, dst;
src = image_create(src_target);
dst = image_create(dst_target);
/* Test all three combinations of incomplete src or dst */
glCopyImageSubData(src, src_target, 0, 0, 0, 0,
dst, dst_target, 0, 0, 0, 0, 0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
image_storage(src_target, src, GL_RGBA8, 32, 32);
assert(piglit_check_gl_error(GL_NO_ERROR));
glCopyImageSubData(src, src_target, 0, 0, 0, 0,
dst, dst_target, 0, 0, 0, 0, 0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
image_storage(dst_target, dst, GL_RGBA8, 32, 32);
assert(piglit_check_gl_error(GL_NO_ERROR));
/* We want to test with empty src but valid dst */
src2 = image_create(src_target);
glCopyImageSubData(src2, src_target, 0, 0, 0, 0,
dst, dst_target, 0, 0, 0, 0, 0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
/* This is no longer needed */
image_delete(src_target, src2);
/* Section 18.3.2 (Copying Between Images) of the OpenGL 4.5 Core
* Profile spec says:
*
* "An INVALID_VALUE error is generated if either name does not
* correspond to a valid renderbuffer or texture object according
* to the corresponding target parameter."
*/
if (src_target != GL_RENDERBUFFER_EXT) {
for (i = 0; i < ARRAY_LENGTH(targets); ++i) {
if (targets[i] == src_target)
continue;
/* here, targets[i] doesn't match src object's target */
glCopyImageSubData(src, targets[i], 0, 0, 0, 0,
dst, dst_target, 0, 0, 0, 0,
0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
if (!pass)
return false;
}
}
/* Section 18.3.2 (Copying Between Images) of the OpenGL 4.5 Core
* Profile spec says:
*
* "An INVALID_VALUE error is generated if either name does not
* correspond to a valid renderbuffer or texture object according
* to the corresponding target parameter."
*/
if (dst_target != GL_RENDERBUFFER_EXT) {
for (i = 0; i < ARRAY_LENGTH(targets); ++i) {
if (targets[i] == dst_target)
continue;
/* here, targets[i] doesn't match dst object's target */
glCopyImageSubData(src, src_target, 0, 0, 0, 0,
dst, targets[i], 0, 0, 0, 0,
0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
if (!pass)
return false;
}
}
/* 4523 should be a bogus renderbuffer/texture */
glCopyImageSubData(4523, src_target, 0, 0, 0, 0,
dst, dst_target, 0, 0, 0, 0, 0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
glCopyImageSubData(src, src_target, 0, 0, 0, 0,
4523, dst_target, 0, 0, 0, 0, 0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
/* Invalid level */
glCopyImageSubData(src, src_target, 5, 0, 0, 0,
dst, dst_target, 0, 0, 0, 0, 0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
glCopyImageSubData(src, src_target, 0, 0, 0, 0,
dst, dst_target, 5, 0, 0, 0, 0, 0, 0);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
/* Region out of bounds */
glCopyImageSubData(src, src_target, 0, 7, 5, 2,
dst, dst_target, 0, 0, 0, 0, 26, 25, 20);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
glCopyImageSubData(src, src_target, 0, 7, 5, 2,
dst, dst_target, 0, 0, 0, 0, 25, 30, 20);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
glCopyImageSubData(src, src_target, 0, 7, 5, 2,
dst, dst_target, 0, 0, 0, 0, 25, 24, 31);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
glCopyImageSubData(src, src_target, 0, 0, 0, 0,
dst, dst_target, 0, 7, 5, 2, 26, 25, 20);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
glCopyImageSubData(src, src_target, 0, 0, 0, 0,
dst, dst_target, 0, 7, 5, 2, 25, 30, 20);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
glCopyImageSubData(src, src_target, 0, 0, 0, 0,
dst, dst_target, 0, 7, 5, 2, 25, 24, 31);
pass &= piglit_check_gl_error(GL_INVALID_VALUE);
image_delete(src_target, src);
image_delete(dst_target, dst);
return pass;
}
void ttftest_write(const char *text, const char *font, const char *file, const char *bg, const char *color)
{
struct image *ttftext;
struct image *gradient;
struct ttf *ttf;
struct color fg;
struct rect drect;
struct rect srect;
log(ttftest_log, L_status, "---------- TrueType GIF renderer ----------", text);
log(ttftest_log, L_status, "text: %s", text);
log(ttftest_log, L_status, "font: %s", font);
log(ttftest_log, L_status, "bg: %s", bg);
log(ttftest_log, L_status, "file: %s", file);
log(ttftest_log, L_status, "color: %s", color);
log(ttftest_log, L_status, "-------------------------------------------");
ttf = ttf_new(font);
if(ttf_open(ttf, font))
{
log(ttftest_log, L_fatal, "Could not load font: %s", font);
return;
}
ttf_calc(ttf, 11);
ttf->style |= TTF_STYLE_BOLD;
image_color_parse(&fg, color);
ttftext = ttf_text_blended(ttf, text, &fg);
gradient = image_load_gif(bg);
if(gradient == NULL)
{
log(ttftest_log, L_fatal, "Could not load background image: %s", bg);
return;
}
image_convert(gradient, IMAGE_TYPE_32);
srect = ttftext->rect;
drect = gradient->rect;
drect.y = 1;
drect.x = 6;
image_blit_32to32(ttftext, &srect, gradient, &drect);
image_convert(gradient, IMAGE_TYPE_8);
if(gradient == NULL)
{
log(ttftest_log, L_warning, "Could not render test glyph.");
}
else
{
if(image_save_gif(gradient, file))
{
log(ttftest_log, L_fatal, "Could not save output: %s", file);
}
image_delete(gradient);
}
}
int main(int argc, char *argv[])
#endif
{
/* C90 requires all vars to be declared at top of function */
CoiHandle entity;
CoiHandle node;
CoiHandle light;
CoiHandle rendersystem;
CoiHandle renderwindow;
CoiHandle viewport;
CoiHandle plane;
CoiHandle plane_entity;
CoiHandle plane_node;
CoiHandle terrain_group;
CoiHandle terrain_iterator;
CoiHandle import_data;
CoiHandle image;
float direction[3];
float colour[4];
#if defined(LLCOI_TEST_USE_OPENINPUT)
// Openinput
oi_event evt;
char openinput_window_params[100];
unsigned int windowHnd = 0;
#if defined(PLATFORM_LINUX)
Display *disp;
Window win;
unsigned int scrn;
#endif
#endif //LLCOI_TEST_USE_OPENINPUT
keep_going = 1;
long loop_x = 0;
long loop_y = 0;
// setup
create_root("plugins.cfg", "ogre.cfg", "ogre.log");
if (!(restore_config() || show_config_dialog()))
{
return 1;
}
setup_resources("resources.cfg");
renderwindow = root_initialise(1, "Ogre Renderwindow");
set_default_num_mipmaps(5);
initialise_all_resource_groups();
create_scene_manager("OctreeSceneManager", "The SceneManager");
myCamera = create_camera(get_scene_manager(), "mycam");
camera_set_position(myCamera, 1683, 50, 2116);
camera_lookat(myCamera, 1963, -50, 1660);
camera_set_near_clip_distance(myCamera, 1);
camera_set_far_clip_distance(myCamera, 50000);
viewport = add_viewport(myCamera);
viewport_set_background_colour(viewport, 0, 0, 0);
camera_set_aspect_ratio(myCamera, 800, 600);
// entities
plane = create_plane_from_normal(0, 1, 0, 0);
mesh_manager_create_plane("ground", "General", plane, 1500, 1500, 20, 20, 1, 1, 5, 5, 0, 0, 1);
plane_entity = create_entity(get_scene_manager(), "plane", "ground");
entity_set_material_name(plane_entity, "Dev/Red");
plane_node = create_child_scene_node(get_scene_manager(), "planenode");
scene_node_attach_entity(plane_node, plane_entity);
entity = create_entity(get_scene_manager(), "OgreHead", "ogrehead.mesh");
node = create_child_scene_node(get_scene_manager(), "headNode");
scene_node_attach_entity(node, entity);
scene_manager_set_ambient_light_rgb(get_scene_manager(), 0.5f, 0.5f, 0.5f);
light = create_light(get_scene_manager(), "mainLight");
light_set_position(light, 20, 80, 50);
// terrain
create_terrain_global_options();
terrain_group = create_terrain_group(get_scene_manager(), ALIGN_X_Z, 513, 12000.0f);
terrain_group_set_filename_convention(terrain_group, "BasicTutorial3Terrain", "dat");
terrain_group_set_origin(terrain_group, 0, 0, 0);
// terrain defaults
terrain_global_options_set_max_pixel_error(8);
terrain_global_options_set_composite_map_distance(3000);
terrain_global_options_set_light_map_direction_vector3(light_get_derived_direction(light));
terrain_global_options_set_composite_map_ambient_colour(scene_manager_get_ambient_light(get_scene_manager()));// sm
terrain_global_options_set_composite_map_diffuse_colour(light_get_diffuse_colour(light));// light
import_data = terrain_group_get_default_import_settings(terrain_group);
terrain_group_import_data_set_terrain_size(import_data, 513);
terrain_group_import_data_set_world_size(import_data, 12000.0f);
terrain_group_import_data_set_input_scale(import_data, 600);
terrain_group_import_data_set_min_batch_size(import_data, 33);
terrain_group_import_data_set_max_batch_size(import_data, 65);
terrain_group_import_data_resize_layers(import_data, 3);
terrain_group_import_data_set_layer(import_data, 0, 100, "nvidia/dirt_grayrocky_diffusespecular.dds", "nvidia/dirt_grayrocky_normalheight.dds");
terrain_group_import_data_set_layer(import_data, 1, 30, "nvidia/grass_green-01_diffusespecular.dds", "nvidia/grass_green-01_normalheight.dds");
terrain_group_import_data_set_layer(import_data, 2, 200, "nvidia/growth_weirdfungus-03_diffusespecular.dds", "nvidia/growth_weirdfungus-03_normalheight.dds");
// define terrains
for (loop_x; loop_x <= 0; ++loop_x)
{
for (loop_y; loop_y <= 0; ++loop_y)
{
if (resource_exists(terrain_group_get_resource_group(terrain_group), terrain_group_generate_filename(terrain_group, loop_x, loop_y)))
{
terrain_group_define_terrain(terrain_group, loop_x, loop_y);
}
else
{
image = create_image();
image_load(image, "terrain.png");
if (loop_x % 2 != 0)
{
image_flip_around_y(image);
}
if (loop_y % 2 != 0)
{
image_flip_around_x(image);
}
terrain_group_define_terrain_image(terrain_group, loop_x, loop_y, image);
image_delete(image);
image = NULL;
}
}
}
terrain_group_load_all_terrains(terrain_group, 1);
// blend maps
/*
terrain_iterator = terrain_group_get_terrain_iterator(terrain_group);
while(terrain_iterator_has_more_elements(terrain_iterator))
{
CoiHandle terrain = terrain_iterator_get_next(terrain_iterator);
int blend_map_size = terrain_get_layer_blend_map_size(terrain);
CoiHandle blend_map_0 = terrain_get_layer_blend_map(terrain, 1);
CoiHandle blend_map_1 = terrain_get_layer_blend_map(terrain, 2);
float min_height_0 = 70;
float fade_dist_0 = 40;
float min_height_1 = 70;
float fade_dist_1 = 15;
float* blend_1 = terrain_layer_blend_map_get_blend_pointer(blend_map_1);
for(unsigned int y = 0; y < blend_map_size; ++y)
{
for(unsigned int x = 0; x < blend_map_size; ++x)
{
float tx, ty;
terrain_layer_blend_map_convert_image_to_terrain_space(x, y, &tx, &ty);
float height = terrain_get_height_at_terrain_position(tx, ty);
float val = (height - min_height_0) / fade_dist_0;
val = math_clamp_f(val, 0.0f, 1.0f);
val = (height - min_height_1) / fade_dist_1;
val = math_clamp_f(val, 0.0f, 1.0f);
*blend_1++ = val;
}
}
terrain_layer_blend_map_dirty(blend_map_0);
terrain_layer_blend_map_dirty(blend_map_1);
terrain_layer_blend_map_update(blend_map_0);
terrain_layer_blend_map_update(blend_map_1);
}
*/
terrain_group_free_temporary_resources(terrain_group);
// listeners
add_frame_listener(frame_listener_test,EVENT_FRAME_RENDERING_QUEUED|EVENT_FRAME_STARTED);
add_window_listener(renderwindow, window_event_listener_test);
input_manager = create_input_system(render_window_get_hwnd(renderwindow));
input_listener = create_input_listener();
keyboard = create_keyboard_object(input_manager, 1);
mouse = create_mouse_object(input_manager, 1);
attach_keyboard_listener(keyboard, input_listener);
attach_mouse_listener(mouse, input_listener);
add_key_pressed_listener(input_listener, key_pressed_test);
while(keep_going)
{
keyboard_capture(keyboard);
mouse_capture(mouse);
// Pump window messages for nice behaviour
pump_messages();
// Render a frame
render_one_frame();
if (render_window_closed(renderwindow))
{
keep_going = 0;
}
}
#if defined(LLCOI_TEST_USE_OPENINPUT)
windowHnd = render_window_get_hwnd(renderwindow);
#if defined(PLATFORM_LINUX)
disp = XOpenDisplay( NULL );
scrn = DefaultScreen(disp);
sprintf(openinput_window_params, "c:%u s:%u w:%u", (unsigned int)disp, (unsigned int)scrn, windowHnd);
#else
sprintf(openinput_window_params, "c:%u s:%u w:%u", 0, 0, windowHnd);
#endif
oi_init(openinput_window_params, 0);
log_message("***************************");
log_message("*** All Systems online! ***");
log_message("***************************");
//render_loop();
while (keep_going)
{
// ask oi to wait for events
oi_events_poll(&evt);
switch(evt.type)
{
case OI_QUIT:
// Quit
keep_going = 0;
break;
case OI_KEYDOWN:
// Keyboard button down
//WTF?? Better way to check this, please..
if(evt.key.keysym.sym == OIK_ESC)
keep_going = 0;
break;
default:
break;
}
// Pump window messages for nice behaviour
pump_messages();
// Render a frame
render_one_frame();
if (render_window_closed())
{
keep_going = 0;
}
}
oi_close();
#endif //LLCOI_TEST_USE_OPENINPUT
remove_window_listener(renderwindow);
destroy_keyboard_object(input_manager, keyboard);
destroy_mouse_object(input_manager, mouse);
destroy_input_system(input_manager);
release_engine();
return 0;
}
/* It is represented as two images, the first one for horizontal smoothness, the second for vertical
in dst_horiz, the pixel i,j represents the smoothness weight between pixel i,j and i,j+1
in dst_vert, the pixel i,j represents the smoothness weight between pixel i,j and i+1,j */
void compute_smoothness(image_t *dst_horiz, image_t *dst_vert, const image_t *uu, const image_t *vv, const image_t *dpsis_weight, const convolution_t *deriv_flow, const float half_alpha) {
int w = uu->width, h = uu->height, s = uu->stride, i, j, offset;
image_t *ux1 = image_new(w,h), *uy1 = image_new(w,h), *vx1 = image_new(w,h), *vy1 = image_new(w,h),
*ux2 = image_new(w,h), *uy2 = image_new(w,h), *vx2 = image_new(w,h), *vy2 = image_new(w,h);
// compute ux1, vx1, filter [-1 1]
for( j=0 ; j<h ; j++)
{
offset = j*s;
for( i=0 ; i<w-1 ; i++, offset++)
{
ux1->data[offset] = uu->data[offset+1] - uu->data[offset];
vx1->data[offset] = vv->data[offset+1] - vv->data[offset];
}
}
// compute uy1, vy1, filter [-1;1]
for( j=0 ; j<h-1 ; j++)
{
offset = j*s;
for( i=0 ; i<w ; i++, offset++)
{
uy1->data[offset] = uu->data[offset+s] - uu->data[offset];
vy1->data[offset] = vv->data[offset+s] - vv->data[offset];
}
}
// compute ux2, uy2, vx2, vy2, filter [-0.5 0 0.5]
convolve_horiz(ux2,uu,deriv_flow);
convolve_horiz(vx2,vv,deriv_flow);
convolve_vert(uy2,uu,deriv_flow);
convolve_vert(vy2,vv,deriv_flow);
// compute final value, horiz
for( j=0 ; j<h ; j++)
{
offset = j*s;
for( i=0 ; i<w-1 ; i++, offset++)
{
float tmp = 0.5f*(uy2->data[offset]+uy2->data[offset+1]);
float uxsq = ux1->data[offset]*ux1->data[offset] + tmp*tmp;
tmp = 0.5f*(vy2->data[offset]+vy2->data[offset+1]);
float vxsq = vx1->data[offset]*vx1->data[offset] + tmp*tmp;
tmp = uxsq + vxsq;
dst_horiz->data[offset] = (dpsis_weight->data[offset]+dpsis_weight->data[offset+1])*half_alpha / sqrt( tmp + epsilon_smooth ) ;
}
memset( &dst_horiz->data[j*s+w-1], 0, sizeof(float)*(s-w+1));
}
// compute final value, vert
for( j=0 ; j<h-1 ; j++)
{
offset = j*s;
for( i=0 ; i<w ; i++, offset++)
{
float tmp = 0.5f*(ux2->data[offset]+ux2->data[offset+s]);
float uysq = uy1->data[offset]*uy1->data[offset] + tmp*tmp;
tmp = 0.5f*(vx2->data[offset]+vx2->data[offset+s]);
float vysq = vy1->data[offset]*vy1->data[offset] + tmp*tmp;
tmp = uysq + vysq;
dst_vert->data[offset] = (dpsis_weight->data[offset]+dpsis_weight->data[offset+s])*half_alpha / sqrt( tmp + epsilon_smooth ) ;
/*if( dpsis_weight->data[offset]<dpsis_weight->data[offset+s])
dst_vert->data[offset] = dpsis_weight->data[offset]*half_alpha / sqrt( tmp + epsilon_smooth ) ;
else
dst_vert->data[offset] = dpsis_weight->data[offset+s]*half_alpha / sqrt( tmp + epsilon_smooth ) ;*/
}
}
memset( &dst_vert->data[(h-1)*s], 0, sizeof(float)*s);
image_delete(ux1); image_delete(uy1); image_delete(vx1); image_delete(vy1);
image_delete(ux2); image_delete(uy2); image_delete(vx2); image_delete(vy2);
}
/* compute the saliency of a given image */
image_t* saliency(const color_image_t *im, float sigma_image, float sigma_matrix ){
int width = im->width, height = im->height, filter_size;
// smooth image
color_image_t *sim = color_image_new(width, height);
float *presmooth_filter = gaussian_filter(sigma_image, &filter_size);
convolution_t *presmoothing = convolution_new(filter_size, presmooth_filter, 1);
color_image_convolve_hv(sim, im, presmoothing, presmoothing);
convolution_delete(presmoothing);
free(presmooth_filter);
// compute derivatives
float deriv_filter[2] = {0.0f, -0.5f};
convolution_t *deriv = convolution_new(1, deriv_filter, 0);
color_image_t *imx = color_image_new(width, height), *imy = color_image_new(width, height);
color_image_convolve_hv(imx, sim, deriv, NULL);
color_image_convolve_hv(imy, sim, NULL, deriv);
convolution_delete(deriv);
// compute autocorrelation matrix
image_t *imxx = image_new(width, height), *imxy = image_new(width, height), *imyy = image_new(width, height);
v4sf *imx1p = (v4sf*) imx->c1, *imx2p = (v4sf*) imx->c2, *imx3p = (v4sf*) imx->c3, *imy1p = (v4sf*) imy->c1, *imy2p = (v4sf*) imy->c2, *imy3p = (v4sf*) imy->c3,
*imxxp = (v4sf*) imxx->data, *imxyp = (v4sf*) imxy->data, *imyyp = (v4sf*) imyy->data;
int i;
for(i = 0 ; i<height*im->stride/4 ; i++){
*imxxp = (*imx1p)*(*imx1p) + (*imx2p)*(*imx2p) + (*imx3p)*(*imx3p);
*imxyp = (*imx1p)*(*imy1p) + (*imx2p)*(*imy2p) + (*imx3p)*(*imy3p);
*imyyp = (*imy1p)*(*imy1p) + (*imy2p)*(*imy2p) + (*imy3p)*(*imy3p);
imxxp+=1; imxyp+=1; imyyp+=1;
imx1p+=1; imx2p+=1; imx3p+=1;
imy1p+=1; imy2p+=1; imy3p+=1;
}
// integrate autocorrelation matrix
float *smooth_filter = gaussian_filter(sigma_matrix, &filter_size);
convolution_t *smoothing = convolution_new(filter_size, smooth_filter, 1);
image_t *tmp = image_new(width, height);
convolve_horiz(tmp, imxx, smoothing);
convolve_vert(imxx, tmp, smoothing);
convolve_horiz(tmp, imxy, smoothing);
convolve_vert(imxy, tmp, smoothing);
convolve_horiz(tmp, imyy, smoothing);
convolve_vert(imyy, tmp, smoothing);
convolution_delete(smoothing);
free(smooth_filter);
// compute smallest eigenvalue
v4sf vzeros = {0.0f,0.0f,0.0f,0.0f};
v4sf vhalf = {0.5f,0.5f,0.5f,0.5f};
v4sf *tmpp = (v4sf*) tmp->data;
imxxp = (v4sf*) imxx->data; imxyp = (v4sf*) imxy->data; imyyp = (v4sf*) imyy->data;
for(i = 0 ; i<height*im->stride/4 ; i++){
(*tmpp) = vhalf*( (*imxxp)+(*imyyp) ) ;
(*tmpp) = __builtin_ia32_sqrtps(__builtin_ia32_maxps(vzeros, (*tmpp) - __builtin_ia32_sqrtps(__builtin_ia32_maxps(vzeros, (*tmpp)*(*tmpp) + (*imxyp)*(*imxyp) - (*imxxp)*(*imyyp) ) )));
tmpp+=1; imxyp+=1; imxxp+=1; imyyp+=1;
}
image_delete(imxx); image_delete(imxy); image_delete(imyy);
color_image_delete(imx); color_image_delete(imy);
color_image_delete(sim);
return tmp;
}
int main(int argc, char* argv[])
{
printf("[i] Start...\n");
char file_name[] = "test.bmp";
char* filename=file_name;
if(argc >= 2) {
filename = argv[1];
}
printf("[i] file: %s\n", filename);
image* img = image_create(320, 240, 3, CV_DEPTH_8U);
if(!img) {
printf("[!] Error: image_create()\n");
return -1;
}
image_delete(&img);
// test image loading
image* img2 = image_load(filename);
printf("[i] image size: %dx%dx%d (%d)\n", img2->width, img2->height, img2->n_channels, img2->size);
image_save(img2, "test2_load_save.bmp");
printf("[i] == Tests == \n");
#if 1
// copy
printf("[i] image_copy \n");
img = image_create(img2->width, img2->height, img2->n_channels, CV_DEPTH_8U);
image_copy(img2, img);
image_save(img, "test2_copy.bmp");
// test convert image to grayscale
printf("[i] image_convert_color \n");
image* img_gray = image_create(img2->width, img2->height, 1, CV_DEPTH_8U);
gettimeofday(&t0, NULL);
image_convert_color(img2, img_gray, CV_RGB2GRAY);
gettimeofday(&t1, NULL);
image_save(img_gray, "test3_gray.bmp");
// test borders detection
printf("[i] image_thin_borders \n");
image* img_borders = NULL;
gettimeofday(&t2, NULL);
image_thin_borders(img_gray, &img_borders);
gettimeofday(&t3, NULL);
image_save(img_borders, "test4_thin_borders.bmp");
// min-max-loc
printf("[i] image_min_max_loc \n");
double _min, _max;
gettimeofday(&t4, NULL);
image_min_max_loc(img_gray, &_min, &_max, NULL, NULL);
gettimeofday(&t5, NULL);
printf("[i] min=%0.2f max=%0.2f\n", _min, _max);
// threshold
printf("[i] image_threshold \n");
image* img_thr = image_create(img2->width, img2->height, 1, CV_DEPTH_8U);
gettimeofday(&t6, NULL);
image_threshold(img_gray, img_thr, 60);
gettimeofday(&t7, NULL);
image_save(img_thr, "test5_threshold.bmp");
#endif
#if 1
// rotate180
printf("[i] image_rotate180 \n");
image_rotate180(img2);
image_save(img2, "test6_rotate180.bmp");
image_rotate180(img2);
// reflect vertical
printf("[i] image_reflect_vertical \n");
image_reflect_vertical(img2);
image_save(img2, "test7_reflect_vertical.bmp");
image_reflect_vertical(img2);
#endif // rotate180
int colors_count;
cv_point center;
#if 1
// simple resize
printf("[i] image_resize \n");
image *img_small = image_create(160, 120, 3, CV_DEPTH_8U);
gettimeofday(&t8, NULL);
image_resize(img2, img_small);
gettimeofday(&t9, NULL);
image_save(img_small, "test8_resize.bmp");
// image* img_small_gray = image_create(80, 60, 1, CV_DEPTH_8U);
// image_convert_color(img_small, img_small_gray, CV_RGB2GRAY);
// image* img_small_borders = NULL;
// image_thin_borders(img_small_gray, &img_small_borders);
// image_save(img_small_borders, "test_resize_thin_borders.bmp");
#if 1
// k-meanes colorer
printf("[i] image_kmeans_colorer \n");
image* img_kmeanes = image_create(160, 120, 3, CV_DEPTH_8U);
image* img_kmeanes_idx = image_create(160, 120, 1, CV_DEPTH_8U);
#define CLUSTER_COUNT 10
int cluster_count = CLUSTER_COUNT;
cv_color_cluster clusters[CLUSTER_COUNT];
gettimeofday(&t10, NULL);
colors_count = image_kmeans_colorer(img_small, img_kmeanes, img_kmeanes_idx, clusters, cluster_count);
gettimeofday(&t11, NULL);
printf("[i] colors count: %d\n", colors_count);
image_save(img_kmeanes, "test_kmeanscolorer.bmp");
#if 0
print_color_clusters(clusters, CLUSTER_COUNT);
printf("[i] === colors clusters after sort:\n");
sort_color_clusters_by_count(clusters, CLUSTER_COUNT);
print_color_clusters(clusters, CLUSTER_COUNT);
#endif
image_delete(&img_kmeanes);
image_delete(&img_kmeanes_idx);
#endif // k-meanes colorer
image_delete(&img_small);
// image_delete(&img_small_gray);
// image_delete(&img_small_borders);
#endif // simple resize
#if 1
// HSV
printf("[i] image_hsv2rgb \n");
image* img_hsv = image_create(img2->width, img2->height, 3, CV_DEPTH_8U);
image* img_bgr = image_create(img2->width, img2->height, 3, CV_DEPTH_8U);
gettimeofday(&t12, NULL);
image_rgb2hsv(img2, img_hsv);
gettimeofday(&t13, NULL);
image_hsv2rgb(img_hsv, img_bgr);
image_save(img_hsv, "test9_rgb2hsv.bmp");
image_save(img_bgr, "test9_hsv2rgb.bmp");
image_delete(&img_hsv);
image_delete(&img_bgr);
#endif // HSV
#if 1
// hsv colorer
printf("[i] image_hsv_colorer \n");
image* img_hsv_col = image_create(img2->width, img2->height, 3, CV_DEPTH_8U);
image* img_hsv_idx = image_create(img2->width, img2->height, 1, CV_DEPTH_8U);
#define COLORS_COUNT 10
cv_color_cluster clusters2[COLORS_COUNT];
gettimeofday(&t14, NULL);
colors_count = image_hsv_colorer(img2, img_hsv_col, img_hsv_idx, clusters2, COLORS_COUNT);
gettimeofday(&t15, NULL);
printf("[i] colors count: %d\n", colors_count);
image_save(img_hsv_col, "test_hsvcolorer.bmp");
#if 1
print_color_clusters(clusters2, COLORS_COUNT);
printf("[i] === colors clusters after sort:\n");
sort_color_clusters_by_count(clusters2, COLORS_COUNT);
print_color_clusters(clusters2, COLORS_COUNT);
center = get_color_center(clusters2[0].id, img_hsv_idx);
printf("[i] first color center: %03d %03d\n", center.x, center.y);
center = get_color_center(clusters2[1].id, img_hsv_idx);
printf("[i] second color center: %03d %03d\n", center.x, center.y);
center = get_color_center(clusters2[2].id, img_hsv_idx);
printf("[i] third color center: %03d %03d\n", center.x, center.y);
#endif // print_color_clusters
image_delete(&img_hsv_col);
image_delete(&img_hsv_idx);
#endif // hsv colorer
printf("[i] == Performance == \n");
print_performance("image_convert_color", t1, t0);
print_performance("image_thin_borders", t3, t2);
print_performance("image_min_max_loc", t5, t4);
print_performance("image_threshold", t7, t6);
print_performance("image_resize", t9, t8);
print_performance("image_kmeans_colorer", t11, t10);
print_performance("image_rgb2hsv", t13, t12);
print_performance("image_hsv_colorer", t15, t14);
image_delete(&img);
image_delete(&img2);
#if 1
image_delete(&img_gray);
image_delete(&img_borders);
image_delete(&img_thr);
#endif
printf("[i] End.\n");
return 0;
}
void visual_tracer_close(void)
{ if (host.tw != NULL) {
image_delete(host.tw);
image_close(host.tw);
}
}
int main(int argc, char ** argv){
image_t *match_x = NULL, *match_y = NULL, *match_z = NULL;
// load images
if(argc < 4){
fprintf(stderr,"Wrong command, require at least 3 arguments.\n\n");
usage();
exit(1);
}
color_image_t *im1 = color_image_load(argv[1]), *im2 = color_image_load(argv[2]);
if(im1->width != im2->width || im1->height != im2->height){
fprintf(stderr,"Image dimensions does not match\n");
exit(1);
}
// set params to default
optical_flow_params_t* params = (optical_flow_params_t*) malloc(sizeof(optical_flow_params_t));
if(!params){
fprintf(stderr,"error deepflow(): not enough memory\n");
exit(1);
}
optical_flow_params_default(params);
// parse options
int current_arg = 4;
while(1){
if( current_arg >= argc) break;
if(!strcmp(argv[current_arg],"-h") || !strcmp(argv[current_arg],"--help") ){
usage();
exit(1);
}else if(!strcmp(argv[current_arg],"-a") || !strcmp(argv[current_arg],"-alpha") ){
current_arg++;
if(current_arg >= argc) require_argument("alpha");
float alpha = atof(argv[current_arg++]);
if(alpha<0){
fprintf(stderr,"Alpha argument cannot be negative\n");
exit(1);
}
params->alpha = alpha;
}else if(!strcmp(argv[current_arg],"-b") || !strcmp(argv[current_arg],"-beta") ){
current_arg++;
if(current_arg >= argc) require_argument("beta");
float beta = atof(argv[current_arg++]);
if(beta<0){
fprintf(stderr,"Beta argument cannot be negative\n");
exit(1);
}
params->beta = beta;
}else if(!strcmp(argv[current_arg],"-g") || !strcmp(argv[current_arg],"-gamma") ){
current_arg++;
if(current_arg >= argc) require_argument("gamma");
float gamma = atof(argv[current_arg++]);
if(gamma<0){
fprintf(stderr,"Gamma argument cannot be negative\n");
exit(1);
}
params->gamma = gamma;
}else if(!strcmp(argv[current_arg],"-d") || !strcmp(argv[current_arg],"-delta") ){
current_arg++;
if(current_arg >= argc) require_argument("delta");
float delta = atof(argv[current_arg++]);
if(delta<0) {
fprintf(stderr,"Delta argument cannot be negative\n");
exit(1);
}
params->delta = delta;
}else if(!strcmp(argv[current_arg],"-s") || !strcmp(argv[current_arg],"-sigma") ){
current_arg++;
if(current_arg >= argc) require_argument("sigma");
float sigma = atof(argv[current_arg++]);
if(sigma<0){
fprintf(stderr,"Sigma argument is negative\n");
exit(1);
}
params->sigma = sigma;
}else if(!strcmp(argv[current_arg],"-bk")) {
current_arg++;
if(current_arg >= argc) require_argument("bk");
float betak = atof(argv[current_arg++]);
if(betak<0.0f){
fprintf(stderr,"Bk argument must be positive\n");
exit(1);
}
params->bk = betak;
}else if(!strcmp(argv[current_arg],"-e") || !strcmp(argv[current_arg],"-eta") ){
current_arg++;
if(current_arg >= argc) require_argument("eta");
float eta = atof(argv[current_arg++]);
if(eta<0.25 || eta>0.98){
fprintf(stderr,"Eta argument has to be between 0.25 and 0.98\n");
exit(1);
}
params->eta = eta;
}else if( !strcmp(argv[current_arg],"-minsize") ){
current_arg++;
if(current_arg >= argc) require_argument("minsize");
int minsize = atoi(argv[current_arg++]);
if(minsize < 10){
fprintf(stderr,"Minsize argument has to be higher than 10\n");
exit(1);
}
params->min_size = minsize;
}else if(!strcmp(argv[current_arg],"-inner") ){
current_arg++;
if(current_arg >= argc) require_argument("inner");
int inner = atoi(argv[current_arg++]);
if(inner<=0){
fprintf(stderr,"Inner argument must be strictly positive\n");
exit(1);
}
params->n_inner_iteration = inner;
}else if(!strcmp(argv[current_arg],"-iter") ){
current_arg++;
if(current_arg >= argc) require_argument("iter");
int iter = atoi(argv[current_arg++]);
if(iter<=0){
fprintf(stderr,"Iter argument must be strictly positive\n");
exit(1);
}
params->n_solver_iteration = iter;
}else if( !strcmp(argv[current_arg],"-match") || !strcmp(argv[current_arg],"-matchf")){
int wm = im1->width, hm = im1->height;
if( !strcmp(argv[current_arg++],"-match") ){
wm = 512;
hm = 256;
}
image_delete(match_x); image_delete(match_y); image_delete(match_z);
match_x = image_new(wm, hm); match_y = image_new(wm, hm); match_z = image_new(wm, hm);
image_erase(match_x); image_erase(match_y); image_erase(match_z);
FILE *fid = stdin;
if( current_arg<argc && argv[current_arg][0] != '-'){
fid = fopen(argv[current_arg++], "r");
if(fid==NULL){
fprintf(stderr, "Cannot read matches from file %s", argv[current_arg-1]);
exit(1);
}
}
int x1, x2, y1, y2;
float score;
while(!feof(fid) && fscanf(fid, "%d %d %d %d %f\n", &x1, &y1, &x2, &y2, &score)==5){
if( x1<0 || y1<0 || x2<0 || y2<0 || x1>=wm || y1>=hm || x2>=wm || y2>=hm){
fprintf(stderr, "Error while reading matches %d %d -> %d %d, out of bounds\n", x1, y1, x2, y2);
exit(1);
}
match_x->data[ y1*match_x->stride+x1 ] = (float) (x2-x1);
match_y->data[ y1*match_x->stride+x1 ] = (float) (y2-y1);
match_z->data[ y1*match_x->stride+x1 ] = score;
}
}else if ( !strcmp(argv[current_arg],"-sintel") ){
current_arg++;
optical_flow_params_sintel(params);
}else if ( !strcmp(argv[current_arg],"-middlebury") ){
current_arg++;
optical_flow_params_middlebury(params);
}else if ( !strcmp(argv[current_arg],"-kitti") ){
current_arg++;
optical_flow_params_kitti(params);
}else{
if(argv[current_arg][0] == '-'){
fprintf(stderr,"Unknow options %s\n",argv[current_arg]);
}else{
fprintf(stderr,"Error while reading options, %s\n",argv[current_arg]);
}
exit(1);
}
}
image_t *wx = image_new(im1->width,im1->height), *wy = image_new(im1->width,im1->height);
optical_flow(wx, wy, im1, im2, params, match_x, match_y, match_z);
writeFlowFile(argv[3], wx, wy);
image_delete(wx);
image_delete(wy);
image_delete(match_x); image_delete(match_y); image_delete(match_z);
color_image_delete(im1); color_image_delete(im2);
free(params);
return 0;
}
void mexFunction( int nl, mxArray *pl[], int nr, const mxArray *pr[] ) {
if( nr==0 ){
usage(MATLAB_OPTIONS);
return;
}
if ( nl != 1){
usage(MATLAB_OPTIONS);
mexErrMsgTxt("error: returns one output");
return;
}
if( nr < 2 || nr > 4){
usage(MATLAB_OPTIONS);
mexErrMsgTxt("error: takes two to four inputs");
return;
}
// The code is originally written for C-order arrays.
// We thus transpose all arrays in this mex-function which is not efficient...
const int *pDims;
if( mxGetNumberOfDimensions(pr[0]) != 3 ) mexErrMsgTxt("input images must have 3 dimensions");
if( !mxIsClass(pr[0], "single") ) mexErrMsgTxt("input images must be single");
pDims = mxGetDimensions(pr[0]);
if( pDims[2]!=3 ) mexErrMsgTxt("input images must have 3 channels");
const int h = pDims[0], w = pDims[1];
color_image_t *im1 = input3darray_to_color_image( pr[0] );
if( mxGetNumberOfDimensions(pr[1]) != 3 ) mexErrMsgTxt("input images must have 3 dimensions");
if( !mxIsClass(pr[1], "single") ) mexErrMsgTxt("input images must be single");
pDims = mxGetDimensions(pr[1]);
if( pDims[0]!=h || pDims[1]!=w || pDims[2]!=3) mexErrMsgTxt( "input images must have the same size" );
color_image_t *im2 = input3darray_to_color_image( pr[1] );
image_t *match_x = NULL, *match_y = NULL, *match_z = NULL;
if( nr>2 && !mxIsEmpty(pr[2]) ){
if( mxGetNumberOfDimensions(pr[2]) != 2 ) mexErrMsgTxt("input matches must be a 2d-matrix");
if( !mxIsClass(pr[2], "single")) mexErrMsgTxt("input matches must be single");
pDims = mxGetDimensions(pr[1]);
if( pDims[1]<4) mexErrMsgTxt( "input matches must have at least 4 columns: x1 y1 x2 y2" );
match_x = image_new(w, h); match_y = image_new(w, h); match_z = image_new(w, h);
input2darray_to_matches( match_x, match_y, match_z, pr[2]);
}
// set params to default
optical_flow_params_t* params = (optical_flow_params_t*) malloc(sizeof(optical_flow_params_t));
if(!params){
fprintf(stderr,"error deepflow2(): not enough memory\n");
exit(1);
}
optical_flow_params_default(params);
// read options
if( nr > 3 ){
char *options = mxArrayToString(pr[3]);
if( !options ) mexErrMsgTxt("Fourth parameter must be a string");
int argc=0;
char* argv[256];
argv[argc]=strtok(options," ");
while(argv[argc]!=NULL)
{
argv[++argc]=strtok(NULL," ");
}
parse_options(params, argc, argv, MATLAB_OPTIONS, w, h);
}
image_t *wx = image_new(im1->width,im1->height), *wy = image_new(im1->width,im1->height);
optical_flow(wx, wy, im1, im2, params, match_x, match_y, match_z);
int dims[3] = {h,w,2};
pl[0] = mxCreateNumericArray(3, dims, mxSINGLE_CLASS, mxREAL);
flow_to_output3darray(wx, wy, pl[0]);
image_delete(wx);
image_delete(wy);
image_delete(match_x); image_delete(match_y); image_delete(match_z);
color_image_delete(im1); color_image_delete(im2);
free(params);
}
/* perform flow computation at one level of the pyramid */
void compute_one_level(image_t *wx, image_t *wy, color_image_t *im1, color_image_t *im2, const variational_params_t *params){
const int width = wx->width, height = wx->height, stride=wx->stride;
image_t *du = image_new(width,height), *dv = image_new(width,height), // the flow increment
*mask = image_new(width,height), // mask containing 0 if a point goes outside image boundary, 1 otherwise
*smooth_horiz = image_new(width,height), *smooth_vert = image_new(width,height), // horiz: (i,j) contains the diffusivity coeff from (i,j) to (i+1,j)
*uu = image_new(width,height), *vv = image_new(width,height), // flow plus flow increment
*a11 = image_new(width,height), *a12 = image_new(width,height), *a22 = image_new(width,height), // system matrix A of Ax=b for each pixel
*b1 = image_new(width,height), *b2 = image_new(width,height); // system matrix b of Ax=b for each pixel
color_image_t *w_im2 = color_image_new(width,height), // warped second image
*Ix = color_image_new(width,height), *Iy = color_image_new(width,height), *Iz = color_image_new(width,height), // first order derivatives
*Ixx = color_image_new(width,height), *Ixy = color_image_new(width,height), *Iyy = color_image_new(width,height), *Ixz = color_image_new(width,height), *Iyz = color_image_new(width,height); // second order derivatives
image_t *dpsis_weight = compute_dpsis_weight(im1, 5.0f, deriv);
int i_outer_iteration;
for(i_outer_iteration = 0 ; i_outer_iteration < params->niter_outer ; i_outer_iteration++){
int i_inner_iteration;
// warp second image
image_warp(w_im2, mask, im2, wx, wy);
// compute derivatives
get_derivatives(im1, w_im2, deriv, Ix, Iy, Iz, Ixx, Ixy, Iyy, Ixz, Iyz);
// erase du and dv
image_erase(du);
image_erase(dv);
// initialize uu and vv
memcpy(uu->data,wx->data,wx->stride*wx->height*sizeof(float));
memcpy(vv->data,wy->data,wy->stride*wy->height*sizeof(float));
// inner fixed point iterations
for(i_inner_iteration = 0 ; i_inner_iteration < params->niter_inner ; i_inner_iteration++){
// compute robust function and system
compute_smoothness(smooth_horiz, smooth_vert, uu, vv, dpsis_weight, deriv_flow, half_alpha );
compute_data_and_match(a11, a12, a22, b1, b2, mask, du, dv, Ix, Iy, Iz, Ixx, Ixy, Iyy, Ixz, Iyz, half_delta_over3, half_gamma_over3);
sub_laplacian(b1, wx, smooth_horiz, smooth_vert);
sub_laplacian(b2, wy, smooth_horiz, smooth_vert);
// solve system
sor_coupled(du, dv, a11, a12, a22, b1, b2, smooth_horiz, smooth_vert, params->niter_solver, params->sor_omega);
// update flow plus flow increment
int i;
v4sf *uup = (v4sf*) uu->data, *vvp = (v4sf*) vv->data, *wxp = (v4sf*) wx->data, *wyp = (v4sf*) wy->data, *dup = (v4sf*) du->data, *dvp = (v4sf*) dv->data;
for( i=0 ; i<height*stride/4 ; i++){
(*uup) = (*wxp) + (*dup);
(*vvp) = (*wyp) + (*dvp);
uup+=1; vvp+=1; wxp+=1; wyp+=1;dup+=1;dvp+=1;
}
}
// add flow increment to current flow
memcpy(wx->data,uu->data,uu->stride*uu->height*sizeof(float));
memcpy(wy->data,vv->data,vv->stride*vv->height*sizeof(float));
}
// free memory
image_delete(du); image_delete(dv);
image_delete(mask);
image_delete(smooth_horiz); image_delete(smooth_vert);
image_delete(uu); image_delete(vv);
image_delete(a11); image_delete(a12); image_delete(a22);
image_delete(b1); image_delete(b2);
image_delete(dpsis_weight);
color_image_delete(w_im2);
color_image_delete(Ix); color_image_delete(Iy); color_image_delete(Iz);
color_image_delete(Ixx); color_image_delete(Ixy); color_image_delete(Iyy); color_image_delete(Ixz); color_image_delete(Iyz);
}
/*static*/ void prefilt(image_t *src, int fc)
{
fftw_lock();
int i, j;
/* Log */
for(j = 0; j < src->height; j++)
{
for(i = 0; i < src->width; i++) {
src->data[j*src->stride+i] = log(src->data[j*src->stride+i]+1.0f);
}
}
image_t *img_pad = image_add_padding(src, 5);
/* Get sizes */
int width = img_pad->width;
int height = img_pad->height;
int stride = img_pad->stride;
/* Alloc memory */
float *fx = (float *) fftwf_malloc(width*height*sizeof(float));
float *fy = (float *) fftwf_malloc(width*height*sizeof(float));
float *gfc = (float *) fftwf_malloc(width*height*sizeof(float));
fftwf_complex *in1 = (fftwf_complex *) fftwf_malloc(width*height*sizeof(fftwf_complex));
fftwf_complex *in2 = (fftwf_complex *) fftwf_malloc(width*height*sizeof(fftwf_complex));
fftwf_complex *out = (fftwf_complex *) fftwf_malloc(width*height*sizeof(fftwf_complex));
/* Build whitening filter */
float s1 = fc/sqrt(log(2));
for(j = 0; j < height; j++)
{
for(i = 0; i < width; i++)
{
in1[j*width + i][0] = img_pad->data[j*stride+i];
in1[j*width + i][1] = 0.0f;
fx[j*width + i] = (float) i - width/2.0f;
fy[j*width + i] = (float) j - height/2.0f;
gfc[j*width + i] = exp(-(fx[j*width + i]*fx[j*width + i] + fy[j*width + i]*fy[j*width + i]) / (s1*s1));
}
}
fftshift(gfc, width, height);
/* FFT */
fftwf_plan fft1 = fftwf_plan_dft_2d(width, height, in1, out, FFTW_FORWARD, FFTW_ESTIMATE);
fftw_unlock();
fftwf_execute(fft1);
fftw_lock();
/* Apply whitening filter */
for(j = 0; j < height; j++)
{
for(i = 0; i < width; i++)
{
out[j*width+i][0] *= gfc[j*width + i];
out[j*width+i][1] *= gfc[j*width + i];
}
}
/* IFFT */
fftwf_plan ifft1 = fftwf_plan_dft_2d(width, height, out, in2, FFTW_BACKWARD, FFTW_ESTIMATE);
fftw_unlock();
fftwf_execute(ifft1);
fftw_lock();
/* Local contrast normalisation */
for(j = 0; j < height; j++)
{
for(i = 0; i < width; i++)
{
img_pad->data[j*stride + i] -= in2[j*width+i][0] / (width*height);
in1[j*width + i][0] = img_pad->data[j*stride + i] * img_pad->data[j*stride + i];
in1[j*width + i][1] = 0.0f;
}
}
/* FFT */
fftwf_plan fft2 = fftwf_plan_dft_2d(width, height, in1, out, FFTW_FORWARD, FFTW_ESTIMATE);
fftw_unlock();
fftwf_execute(fft2);
fftw_lock();
/* Apply contrast normalisation filter */
for(j = 0; j < height; j++)
{
for(i = 0; i < width; i++)
{
out[j*width+i][0] *= gfc[j*width + i];
out[j*width+i][1] *= gfc[j*width + i];
}
}
/* IFFT */
fftwf_plan ifft2 = fftwf_plan_dft_2d(width, height, out, in2, FFTW_BACKWARD, FFTW_ESTIMATE);
fftw_unlock();
fftwf_execute(ifft2);
fftw_lock();
/* Get result from contrast normalisation filter */
for(j = 0; j < height; j++)
{
for(i = 0; i < width; i++) {
img_pad->data[j*stride+i] = img_pad->data[j*stride + i] / (0.2f+sqrt(sqrt(in2[j*width+i][0]*in2[j*width+i][0]+in2[j*width+i][1]*in2[j*width+i][1]) / (width*height)));
}
}
image_rem_padding(src, img_pad, 5);
/* Free */
fftwf_destroy_plan(fft1);
fftwf_destroy_plan(fft2);
fftwf_destroy_plan(ifft1);
fftwf_destroy_plan(ifft2);
image_delete(img_pad);
fftwf_free(in1);
fftwf_free(in2);
fftwf_free(out);
fftwf_free(fx);
fftwf_free(fy);
fftwf_free(gfc);
fftw_unlock();
}
