void preparaletras()
{
BMP* bmp, * nbmp;
int i;
for(i = 0; i < 3; i++)
{
char ca[10];
snprintf(ca, sizeof(ca), "OUT%d.bmp", i);
bmp = BMP_ReadFile(ca);
bmp = BMP_Gray(bmp);
nbmp = BMP_Resized(bmp, 20);
BMP_WriteFile(nbmp, ca);
BMP_ExtraiEntradas(nbmp, "entradaletras.txt");
BMP_Free( bmp );
BMP_Free( nbmp );
}
for(i = 3; i < 7; i++)
{
char ca[10];
snprintf(ca, sizeof(ca), "OUT%d.bmp", i);
bmp = BMP_ReadFile(ca);
bmp = BMP_Gray(bmp);
nbmp = BMP_Resized(bmp, 20);
BMP_WriteFile(nbmp, ca);
BMP_ExtraiEntradas(nbmp, "entradanumeros.txt");
BMP_Free( bmp );
BMP_Free( nbmp );
}
}
/* Creates a negative image of the input bitmap file */
int main( int argc, char* argv[] )
{
UCHAR r, g, b;
UINT width, height;
UINT x, y;
BMP* bmp;
/* Check arguments */
if ( argc != 3 )
{
fprintf( stderr, "Usage: %s <input file> <output file>\n", argv[ 0 ] );
return 0;
}
/* Read an image file */
bmp = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stdout, -1 );
/* Get image's dimensions */
width = BMP_GetWidth( bmp );
height = BMP_GetHeight( bmp );
/* Iterate through all the image's pixels */
for ( x = 0 ; x < width ; ++x )
{
for ( y = 0 ; y < height ; ++y )
{
/* Get pixel's RGB values */
BMP_GetPixelRGB( bmp, x, y, &r, &g, &b );
/* Invert RGB values */
BMP_SetPixelRGB( bmp, x, y, 255 - r, 255 - g, 255 - b );
}
}
/* Save result */
BMP_WriteFile( bmp, argv[ 2 ] );
BMP_CHECK_ERROR( stdout, -2 );
/* Free all memory allocated for the image */
BMP_Free( bmp );
return 0;
}
/* Creates a blur image of the input bitmap file */
int main( int argc, char* argv[] )
{
UCHAR r, g, b;
UINT width, height;
UINT x, y;
BMP* bmp;
BMP* bmp_new;
int size;
int count;
int i, k, start_i, stop_i, start_k, stop_k;
int r_sum, g_sum, b_sum;
UCHAR r_new, g_new, b_new;
/* Check arguments */
if ( argc != 4 )
{
fprintf( stderr, "Usage: %s <input file> <output file> <blur box size>\n", argv[ 0 ] );
return 0;
}
size = atoi(argv[3]);
if (size <= 0){
printf("Please enter a positive integer as the blur box size argument.\n");
return 0;
}
/* Read an image file */
bmp = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stdout, -1 );
bmp_new = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stdout, -1 );
/* Get image's dimensions */
width = BMP_GetWidth( bmp );
height = BMP_GetHeight( bmp );
/* Iterate through all the image's pixels */
for ( x = 0 ; x < width ; ++x )
{
for ( y = 0 ; y < height ; ++y )
{
r_sum = 0;
g_sum = 0;
b_sum = 0;
count = 0;
/* Get pixel's RGB values */
start_i = x - size;
stop_i = x + size;
start_k = y - size;
stop_k = y + size;
for (i = start_i; i <= stop_i; i++){
for (k = start_k; k <= stop_k; k++){
if ((i >= 0) && (i < width) && (k >= 0) && (k < height)){
BMP_GetPixelRGB(bmp, i, k, &r, &g, &b);
count++;
r_sum = r_sum + r;
g_sum = g_sum + g;
b_sum = b_sum + b;
}
}
}
r_new = r_sum / count;
g_new = g_sum / count;
b_new = b_sum / count;
/* Invert RGB values */
BMP_SetPixelRGB( bmp_new, x, y, r_new, g_new, b_new );
}
}
/* Save result */
BMP_WriteFile( bmp_new, argv[ 2 ] );
BMP_CHECK_ERROR( stdout, -2 );
/* Free all memory allocated for the image */
BMP_Free( bmp );
BMP_Free( bmp_new );
return 0;
}
/* Creates a negative image of the input bitmap file */
int main( int argc, char* argv[] )
{
UCHAR r, g, b;
int pos = 0;
int i = 0;
int startPos = 0;
int get_x = 0;
int get_y = 0;
int thread_num = 0;
/* Check arguments */
if ( argc != 5 )
{
fprintf( stderr, "Usage: %s <input file> <output file>\n", argv[ 0 ] );
return 0;
}
/* Read an image file */
bmp = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stdout, -1 );
/* Get image's dimensions */
width = BMP_GetWidth( bmp );
height = BMP_GetHeight( bmp );
size = width*height;
box_size = atoi(argv[3]);
thread_num = atoi(argv[4]);
if (box_size <= 0){
printf("sorry, box size cannot be negative or 0\n");
return 0;
}
if (thread_num <= 0){
printf("sorry, thread number cannot be negative or 0\n");
return 0;
}
interval = size/(thread_num-1);
// printf("%d\n", size);
pthread_t thread[thread_num];
int inter[thread_num];
/* Iterate through all the image's pixels */
for ( get_x = 0 ; get_x < width ; get_x++ )
{
for ( get_y = 0 ; get_y < height ; get_y++ )
{
/* Get pixel's RGB values */
BMP_GetPixelRGB( bmp, get_x, get_y, &r, &g, &b );
pos = get_x + get_y*width;
pixelsR[pos] = r;
pixelsG[pos] = g;
pixelsB[pos] = b;
// BMP_SetPixelRGB( bmp, x, y, 255 - r, 255 - g, 255 - b );
}
}
while (i < thread_num){
inter[i] = startPos;
i++;
startPos = startPos + interval;
}
i = 0;
while (i < thread_num){
pthread_create(&thread[i], NULL, &blur, &inter[i]);
i++;
}
i = 0;
while (i < thread_num){
pthread_join(thread[i], NULL);
i++;
}
/* Save result */
BMP_WriteFile( bmp, argv[ 2 ] );
BMP_CHECK_ERROR( stdout, -2 );
/* Free all memory allocated for the image */
BMP_Free( bmp );
return 0;
}
int main() {
static const char* cubeNames[CC_FACE_NUM] = {
"TOP.bmp",
"LEFT.bmp",
"FRONT.bmp",
"RIGHT.bmp",
"BACK.bmp",
"DOWN.bmp"
};
struct cc_context ctx;
unsigned int i = 0;
unsigned int j = 0;
unsigned char rr;
unsigned char gg;
unsigned char bb;
BMP *bmpCube[CC_FACE_NUM];
unsigned int width = 0;
unsigned int height = 0;
unsigned short depth = 0;
BMP *output = NULL;
unsigned int pano_width = 0;
unsigned int pano_height = 0;
const struct cc_coord* coord = NULL;
// Read the 6 input images
for (i = 0; i < CC_FACE_NUM; ++i) {
bmpCube[i] = BMP_ReadFile(cubeNames[i]);
if (BMP_GetError() != BMP_OK) {
return 1;
}
}
// Get image's dimensions
width = (unsigned int)BMP_GetWidth( bmpCube[0]);
height = (unsigned int)BMP_GetHeight(bmpCube[0]);
depth = BMP_GetDepth( bmpCube[0]);
// The input images must be square
if (width != height) {
return 1;
}
/*
Initialise the algorithm:
the width of each input is 640 pixel,
the vertical view portion is PI (180 degrees),
the horizontal view portion is 2*PI (360 degress).
In this case, the output image size will be calculated accordingly.
There is another more detailed init function you can play with.
*/
cc_init(&ctx, width, M_PI*2.0, M_PI);
// Generate the mapping from panorama to cubic
cc_gen_map(&ctx);
// Access the dimension of the panorama image
pano_width = ctx.px_pano_h;
pano_height = ctx.px_pano_v;
// Create the panorama output image
output = BMP_Create(pano_width, pano_height, depth);
// Map the pixels from the panorama back to the source image
for (i = 0; i < pano_width; ++i) {
for (j = 0; j < pano_height; ++j) {
// Get the corresponding position of (i, j)
coord = cc_get_coord(&ctx, i, j);
// Access the pixel
BMP_GetPixelRGB(bmpCube[coord->face], (unsigned long)coord->x, (unsigned long)coord->y, &rr, &gg, &bb);
// Write the pixel to the panorama
BMP_SetPixelRGB(output, i, j, rr, gg, bb);
}
}
// Write the output file
BMP_WriteFile(output, "PANO.bmp");
// Release memory
BMP_Free(output);
for (i = 0; i < CC_FACE_NUM; ++i) {
BMP_Free(bmpCube[i]);
}
cc_close(&ctx);
return 0;
}
