CvPoint get_center(IplImage *img) {
int origW = img->width;
int origH = img->height;
ellipseW = origW / factor;
ellipseH = origH / factor;
mask = new unsigned char[ellipseH * ellipseW];
init_mask(ellipseW, ellipseH);
//num = ellipseH * ellipseW;
int half_w = ellipseW / 2;
int half_h = ellipseH / 2;
int ctrX, ctrY;
float maxComplax;
for (int y = half_h; y < origH - half_h; y++) {
for (int x = half_w; x < origW - half_w; x++) {
// cvSetImageROI(img, cvEllipse(
float complaxVal = get_complax(img, x, y, ellipseW, ellipseH);
// printf("%f %d %d\n", complaxVal, x, y);
if (complaxVal > maxComplax) {
maxComplax = complaxVal;
ctrX = x;
ctrY = y;
}
}
}
cvCircle(img, cvPoint(ctrX, ctrY), half_h, cvScalar(0, 255, 9));
printf("%d %d\n", ctrX, ctrY);
show_image(img, "center");
return cvPoint(ctrX, ctrY);
}
void init_bitboard(void)
{
init_mask();
// init_king();
// init_knight();
init_pawns();
}
/** get the segmentation using active contour with initial mask. Note that the initalization
has to be done before calling this function (for an unknown reason)
* @param aSrc the source image
* @param aInitMask the initial mask for the segementation
* @param aMaxIts maximum number of iteration
* @param aDisp if intermediate results is shown (1-0)
*/
cv::Mat GTVideo::segmentByActiveContour(const cv::Mat& aSrc, const cv::Mat& aInitMask, int aMaxIts, bool aDisp)
{
if (NULL == aSrc.data)
{
std::cerr << "Could not load the image."
<< std::endl;
return cv::Mat();
}
const int rows = aSrc.rows;
const int cols = aSrc.cols;
// set input parameters to the shared object libseg.so
// source image (Note: matlab is column-major while C++ is row-major
cv::Mat trImage;
cv::transpose(aSrc, trImage);
mwArray I(rows, cols, mxUINT8_CLASS);
I.SetData(trImage.data, rows*cols);
// maximum iteration number
int maxits[1] = {aMaxIts};
mwArray max_its(1,1, mxINT32_CLASS);//mxUINT8_CLASS);
max_its.SetData(maxits, 1);
// initial mask of segmentation
cv::Mat initmask = aInitMask.clone();
cv::transpose(initmask, initmask);
mwArray init_mask(rows, cols, mxUINT8_CLASS);
init_mask.SetData(initmask.data, rows*cols);
// parameter alpha to the active contour method
double alph[1] = {0.2};
mwArray alpha(1,1, mxDOUBLE_CLASS);
alpha.SetData(alph, 1);
// display intermediate results or not
uchar disp[1] = {aDisp?1:0};
mwArray display(1,1, mxUINT8_CLASS);
display.SetData(disp, 1);
// return value container
mwArray imOutput(rows, cols, mxUINT8_CLASS);
region_seg(1, imOutput, I, init_mask, max_its, alpha, display);
// retrieve result to cv::Mat format
uchar result[rows*cols];
imOutput.GetData(result, rows*cols);
cv::Mat retImage(rows, cols, CV_8UC1);
for (int j=0; j<cols; j++)
{
for (int i=0; i<rows; i++)
{
retImage.at<uchar>(i,j) = result[j*rows+i];
}
}
return retImage;
}
void init_context (ps_context* gc, ps_canvas* cs, unsigned char* buf)
{
float version = (float)ps_version() / 10000;
fprintf(stderr, "picasso version %.2f\n", version);
pa = ps_path_create();
pm = ps_matrix_create();
mask_buf = (ps_byte*)calloc(1, 320*240);
init_mask(mask_buf, 320, 240);
m = ps_mask_create_with_data(mask_buf, 320, 240);
ps_canvas_set_mask(cs, m);
}
int delay_signaling()
{
if (init_done == 0)
init_mask();
if (delaying == 0) {
delaying = 1;
if (sigprocmask(SIG_BLOCK, &block_sigmask, &saved_sigmask)<0) {
/* syslog(LOG_ERR, "sigprocmask: %m");*/
return (-1);
}
}
return (0);
}
// Searches for the biggest plane where all elements have the
// value $(id) (or don't care)
// In this function itself, there are only initializers to get le mask
// The function deals with the memory issues (saves new plane)
// The real magic takes place in the recursive get_mask function
static char term_plane(plane *p, const char *db, \
const char const *curdb, const int bits, \
const unsigned int count, const int id)
{
if (!((*curdb & 1) == id)) return 0;
// There is going to be a plane, so allocate memory for it
p->next = malloc(sizeof(plane));
p = p->next;
p->next = NULL;
char basemask[bits];
init_mask(basemask, count, bits);
// Give us the best mask with ONES, starting at bit 0
p->psingle = get_mask(db, basemask, bits, id, 0);
return 1;
}
int main(void) {
int width = 0;
int height = 0;
int diagonal = 0;
char nom[FILENAME_MAX+1] = "";
int len = 0;
Image mask = init_mask();
/**
* Demande à l'utilisateur :
* - le nom du fichier
* - la hauteur de l'image
* - la largueur de l'image
* - la longueur de la diagonal du losange
*/
do {
printf("Entrez un nomn de fichier : ");
fgets(nom, FILENAME_MAX+1, stdin);
len = strlen(nom) - 1;
if ((len >= 0) && nom[len] == '\n') {
nom[len] = '\0';
} else {
while(!feof(stdin) && !ferror(stdin) && getc(stdin) != '\n');
}
} while ((len < 1) && !feof(stdin) && !ferror(stdin));
char c_par = ' ';
// si c_par != '\n', cela veut dire que l'utilisateur a entré des lettres et des chiffres
while(height <= 0 || height > MAX_IMAGE_HEIGHT || c_par != '\n') {
printf("Hauteur de l'image (max : %d) : ", MAX_IMAGE_HEIGHT);
scanf("%d%c", &height, &c_par);
if(c_par != '\n') {
fprintf(stderr, "Erreur: entrez seulement des nombres !\n");
while(!feof(stdin) && !ferror(stdin) && getc(stdin) != '\n');
}
}
while(width <= 0 || width > MAX_IMAGE_WIDTH || c_par != '\n') {
printf("Largeur de l'image (max : %d) : ", MAX_IMAGE_WIDTH);
scanf("%d%c", &width, &c_par);
if(c_par != '\n') {
fprintf(stderr, "Erreur: entrez seulement des nombres !\n");
while(!feof(stdin) && !ferror(stdin) && getc(stdin) != '\n');
}
}
if(width % 2 == 0 || height % 2 == 0) {
if (width == 100) { // si la dimension = 100, elle sera corrigée vers le bas
width = 99;
}
if(height == 100) {
height = 99;
}
width |= 1; //force les valeurs à être impaires
height |= 1;
printf("Les dimmensions ont été ajustées à des valeurs impaires. \n");
printf("Hauteur : %d, Largeur : %d\n", height, width);
}
do {
printf("Diagonal du losange : ");
scanf("%d%c", &diagonal, &c_par);
if(c_par != '\n') {
fprintf(stderr, "Erreur: entrez seulement des nombres !\n");
while(!feof(stdin) && !ferror(stdin) && getc(stdin) != '\n');
}
} while(diagonal < 0 || (diagonal > height && diagonal > width) || c_par != '\n');
if(diagonal % 2 == 0 && (diagonal == height + 1 || diagonal == width + 1)) {
// si la diagonale est égale à une des dimensions entrées (avant ajustement), elle sera corrigée
diagonal = diagonal - 1;
}
/**
* dessin du losange et affichage de l'image
*/
Image i = diamond(height, width, diagonal);
display(stdout, i);
/**
* écriture de l'image dans un fichier puis lecture du fichier
*/
write_to_file(nom, i);
Image r = read_from_file(nom);
display(stdout, r);
/**
* application du filtre et affichage du résultat
*/
Image res = filter(i, mask);
display(stdout, res);
return 0;
}
int main(int argc, char **argv) {
struct PPM *ppm, *ppm_result;
char *mask;
float *bounds;
struct E2D *e_field;
float *pot_list;
int obj_num;
int iter_max;
int i;
if (argc <= 1) {
printf("useage:\n\t%s <PPM-File>\n", argv[0]);
return 0;
}
printf("Loading Image\n");
ppm = PPM_read(argv[1]);
if (!ppm) {
printf("PPM_read() failed\n");
return 1;
}
mask = init_mask(ppm->h, ppm->w);
bounds = init_bounds(ppm->h, ppm->w);
/* Input from stdin */
printf("Input Max Iterations for the (%d x %d) picture: ", ppm->w, ppm->h);
if (scanf("%d", &iter_max) == 0) {
return 0;
}
printf("Number of objects: ");
if (scanf("%d", &obj_num) == 0) {
return 0;
}
pot_list = (float*) malloc(obj_num * sizeof(float));
printf("Potentials of objects: \n");
for (i = 0; i < obj_num; ++i) {
printf("\tObject %d = ", i+1);
if (scanf("%f", &pot_list[i]) == 0) {
WARNING("Warning: can not read more potentials.");
break;
}
}
/* End of Input */
printf("Detecting boundary\n");
ppm_to_boundary(ppm, pot_list, obj_num, mask, bounds);
printf("Outputing boundary\n");
ppm_result = render_potential(ppm->h, ppm->w, bounds, PPM_table_gray);
PPM_write(ppm_result, "output-boundary-gray.ppm");
PPM_free(ppm_result);
printf("Calculating\n");
iteration(ppm->h, ppm->w, mask, bounds, iter_max);
printf("Rendering\n");
/* scalar field ø */
ppm_result = render_potential(ppm->h, ppm->w, bounds, PPM_table_gray);
PPM_write(ppm_result, "output-Phi-gray.ppm");
PPM_free(ppm_result);
ppm_result = render_potential(ppm->h, ppm->w, bounds, PPM_table_hue);
overlap(ppm_result, ppm);
PPM_write(ppm_result, "output-Phi-hue.ppm");
PPM_free(ppm_result);
/* END scalar field ø */
/* E² = |grad ø|^2 */
e_field = potential_to_E(ppm->h, ppm->w, bounds);
ppm_result = render_E(ppm->h, ppm->w, e_field, PPM_table_gray);
PPM_write(ppm_result, "output-E-Field-gray.ppm");
PPM_free(ppm_result);
ppm_result = render_E(ppm->h, ppm->w, e_field, PPM_table_hue);
overlap(ppm_result, ppm);
PPM_write(ppm_result, "output-E-Field-hue.ppm");
PPM_free(ppm_result);
free(e_field);
/* END E² */
ppm_result = draw_e_lines(ppm->h, ppm->w, mask, bounds,
COLOR_RED);
overlap(ppm_result, ppm);
PPM_write(ppm_result, "output-E-Lines.ppm");
PPM_free(ppm_result);
free(pot_list);
free(mask);
free(bounds);
PPM_free(ppm);
return 0;
}