| | |
| | | #include "image.h" |
| | | #include "utils.h" |
| | | #include "blas.h" |
| | | #include "cuda.h" |
| | | #include <stdio.h> |
| | | #include <math.h> |
| | | |
| | |
| | | |
| | | void normalize_image(image p) |
| | | { |
| | | int i; |
| | | float min = 9999999; |
| | | float max = -999999; |
| | | |
| | | for(i = 0; i < p.h*p.w*p.c; ++i){ |
| | | float v = p.data[i]; |
| | | if(v < min) min = v; |
| | | if(v > max) max = v; |
| | | } |
| | | if(max - min < .000000001){ |
| | | min = 0; |
| | | max = 1; |
| | | } |
| | | for(i = 0; i < p.c*p.w*p.h; ++i){ |
| | | p.data[i] = (p.data[i] - min)/(max-min); |
| | | } |
| | | } |
| | | |
| | | void normalize_image2(image p) |
| | | { |
| | | float *min = calloc(p.c, sizeof(float)); |
| | | float *max = calloc(p.c, sizeof(float)); |
| | | int i,j; |
| | |
| | | } |
| | | free_image(copy); |
| | | if(0){ |
| | | //if(disp->height < 448 || disp->width < 448 || disp->height > 1000){ |
| | | int w = 448; |
| | | int h = w*p.h/p.w; |
| | | if(h > 1000){ |
| | |
| | | } |
| | | cvShowImage(buff, disp); |
| | | cvReleaseImage(&disp); |
| | | } |
| | | } |
| | | #endif |
| | | |
| | | void show_image(image p, const char *name) |
| | | { |
| | | void show_image(image p, const char *name) |
| | | { |
| | | #ifdef OPENCV |
| | | show_image_cv(p, name); |
| | | show_image_cv(p, name); |
| | | #else |
| | | fprintf(stderr, "Not compiled with OpenCV, saving to %s.png instead\n", name); |
| | | save_image(p, name); |
| | | fprintf(stderr, "Not compiled with OpenCV, saving to %s.png instead\n", name); |
| | | save_image(p, name); |
| | | #endif |
| | | } |
| | | } |
| | | |
| | | #ifdef OPENCV |
| | | image get_image_from_stream(CvCapture *cap) |
| | | { |
| | | IplImage* src = cvQueryFrame(cap); |
| | | if (!src) return make_empty_image(0,0,0); |
| | | image im = ipl_to_image(src); |
| | | rgbgr_image(im); |
| | | return im; |
| | | } |
| | | image get_image_from_stream(CvCapture *cap) |
| | | { |
| | | IplImage* src = cvQueryFrame(cap); |
| | | if (!src) return make_empty_image(0,0,0); |
| | | image im = ipl_to_image(src); |
| | | rgbgr_image(im); |
| | | return im; |
| | | } |
| | | #endif |
| | | |
| | | #ifdef OPENCV |
| | | void save_image_jpg(image p, const char *name) |
| | | { |
| | | image copy = copy_image(p); |
| | | rgbgr_image(copy); |
| | | int x,y,k; |
| | | void save_image_jpg(image p, const char *name) |
| | | { |
| | | image copy = copy_image(p); |
| | | if(p.c == 3) rgbgr_image(copy); |
| | | int x,y,k; |
| | | |
| | | char buff[256]; |
| | | sprintf(buff, "%s.jpg", name); |
| | | char buff[256]; |
| | | sprintf(buff, "%s.jpg", name); |
| | | |
| | | IplImage *disp = cvCreateImage(cvSize(p.w,p.h), IPL_DEPTH_8U, p.c); |
| | | int step = disp->widthStep; |
| | | for(y = 0; y < p.h; ++y){ |
| | | for(x = 0; x < p.w; ++x){ |
| | | for(k= 0; k < p.c; ++k){ |
| | | disp->imageData[y*step + x*p.c + k] = (unsigned char)(get_pixel(copy,x,y,k)*255); |
| | | } |
| | | IplImage *disp = cvCreateImage(cvSize(p.w,p.h), IPL_DEPTH_8U, p.c); |
| | | int step = disp->widthStep; |
| | | for(y = 0; y < p.h; ++y){ |
| | | for(x = 0; x < p.w; ++x){ |
| | | for(k= 0; k < p.c; ++k){ |
| | | disp->imageData[y*step + x*p.c + k] = (unsigned char)(get_pixel(copy,x,y,k)*255); |
| | | } |
| | | } |
| | | cvSaveImage(buff, disp,0); |
| | | cvReleaseImage(&disp); |
| | | free_image(copy); |
| | | } |
| | | cvSaveImage(buff, disp,0); |
| | | cvReleaseImage(&disp); |
| | | free_image(copy); |
| | | } |
| | | #endif |
| | | |
| | | void save_image(image im, const char *name) |
| | | { |
| | | #ifdef OPENCV |
| | | save_image_jpg(im, name); |
| | | #else |
| | | char buff[256]; |
| | | //sprintf(buff, "%s (%d)", name, windows); |
| | | sprintf(buff, "%s.png", name); |
| | | unsigned char *data = calloc(im.w*im.h*im.c, sizeof(char)); |
| | | int i,k; |
| | | for(k = 0; k < im.c; ++k){ |
| | | for(i = 0; i < im.w*im.h; ++i){ |
| | | data[i*im.c+k] = (unsigned char) (255*im.data[i + k*im.w*im.h]); |
| | | void save_image(image im, const char *name) |
| | | { |
| | | #ifdef OPENCV |
| | | save_image_jpg(im, name); |
| | | #else |
| | | char buff[256]; |
| | | //sprintf(buff, "%s (%d)", name, windows); |
| | | sprintf(buff, "%s.png", name); |
| | | unsigned char *data = calloc(im.w*im.h*im.c, sizeof(char)); |
| | | int i,k; |
| | | for(k = 0; k < im.c; ++k){ |
| | | for(i = 0; i < im.w*im.h; ++i){ |
| | | data[i*im.c+k] = (unsigned char) (255*im.data[i + k*im.w*im.h]); |
| | | } |
| | | } |
| | | int success = stbi_write_png(buff, im.w, im.h, im.c, data, im.w*im.c); |
| | | free(data); |
| | | if(!success) fprintf(stderr, "Failed to write image %s\n", buff); |
| | | #endif |
| | | } |
| | | |
| | | |
| | | void show_image_layers(image p, char *name) |
| | | { |
| | | int i; |
| | | char buff[256]; |
| | | for(i = 0; i < p.c; ++i){ |
| | | sprintf(buff, "%s - Layer %d", name, i); |
| | | image layer = get_image_layer(p, i); |
| | | show_image(layer, buff); |
| | | free_image(layer); |
| | | } |
| | | } |
| | | |
| | | void show_image_collapsed(image p, char *name) |
| | | { |
| | | image c = collapse_image_layers(p, 1); |
| | | show_image(c, name); |
| | | free_image(c); |
| | | } |
| | | |
| | | image make_empty_image(int w, int h, int c) |
| | | { |
| | | image out; |
| | | out.data = 0; |
| | | out.h = h; |
| | | out.w = w; |
| | | out.c = c; |
| | | return out; |
| | | } |
| | | |
| | | image make_image(int w, int h, int c) |
| | | { |
| | | image out = make_empty_image(w,h,c); |
| | | out.data = calloc(h*w*c, sizeof(float)); |
| | | return out; |
| | | } |
| | | |
| | | image make_random_image(int w, int h, int c) |
| | | { |
| | | image out = make_empty_image(w,h,c); |
| | | out.data = calloc(h*w*c, sizeof(float)); |
| | | int i; |
| | | for(i = 0; i < w*h*c; ++i){ |
| | | out.data[i] = (rand_normal() * .25) + .5; |
| | | } |
| | | return out; |
| | | } |
| | | |
| | | image float_to_image(int w, int h, int c, float *data) |
| | | { |
| | | image out = make_empty_image(w,h,c); |
| | | out.data = data; |
| | | return out; |
| | | } |
| | | |
| | | image rotate_crop_image(image im, float rad, float s, int w, int h, int dx, int dy) |
| | | { |
| | | int x, y, c; |
| | | float cx = im.w/2.; |
| | | float cy = im.h/2.; |
| | | image rot = make_image(w, h, im.c); |
| | | for(c = 0; c < im.c; ++c){ |
| | | for(y = 0; y < h; ++y){ |
| | | for(x = 0; x < w; ++x){ |
| | | float rx = cos(rad)*(x/s + dx/s -cx) - sin(rad)*(y/s + dy/s -cy) + cx; |
| | | float ry = sin(rad)*(x/s + dx/s -cx) + cos(rad)*(y/s + dy/s -cy) + cy; |
| | | float val = bilinear_interpolate(im, rx, ry, c); |
| | | set_pixel(rot, x, y, c, val); |
| | | } |
| | | } |
| | | int success = stbi_write_png(buff, im.w, im.h, im.c, data, im.w*im.c); |
| | | free(data); |
| | | if(!success) fprintf(stderr, "Failed to write image %s\n", buff); |
| | | #endif |
| | | } |
| | | return rot; |
| | | } |
| | | |
| | | |
| | | void show_image_layers(image p, char *name) |
| | | { |
| | | int i; |
| | | char buff[256]; |
| | | for(i = 0; i < p.c; ++i){ |
| | | sprintf(buff, "%s - Layer %d", name, i); |
| | | image layer = get_image_layer(p, i); |
| | | show_image(layer, buff); |
| | | free_image(layer); |
| | | image rotate_image(image im, float rad) |
| | | { |
| | | int x, y, c; |
| | | float cx = im.w/2.; |
| | | float cy = im.h/2.; |
| | | image rot = make_image(im.w, im.h, im.c); |
| | | for(c = 0; c < im.c; ++c){ |
| | | for(y = 0; y < im.h; ++y){ |
| | | for(x = 0; x < im.w; ++x){ |
| | | float rx = cos(rad)*(x-cx) - sin(rad)*(y-cy) + cx; |
| | | float ry = sin(rad)*(x-cx) + cos(rad)*(y-cy) + cy; |
| | | float val = bilinear_interpolate(im, rx, ry, c); |
| | | set_pixel(rot, x, y, c, val); |
| | | } |
| | | } |
| | | } |
| | | return rot; |
| | | } |
| | | |
| | | void show_image_collapsed(image p, char *name) |
| | | { |
| | | image c = collapse_image_layers(p, 1); |
| | | show_image(c, name); |
| | | free_image(c); |
| | | } |
| | | void translate_image(image m, float s) |
| | | { |
| | | int i; |
| | | for(i = 0; i < m.h*m.w*m.c; ++i) m.data[i] += s; |
| | | } |
| | | |
| | | image make_empty_image(int w, int h, int c) |
| | | { |
| | | image out; |
| | | out.data = 0; |
| | | out.h = h; |
| | | out.w = w; |
| | | out.c = c; |
| | | return out; |
| | | } |
| | | void scale_image(image m, float s) |
| | | { |
| | | int i; |
| | | for(i = 0; i < m.h*m.w*m.c; ++i) m.data[i] *= s; |
| | | } |
| | | |
| | | image make_image(int w, int h, int c) |
| | | { |
| | | image out = make_empty_image(w,h,c); |
| | | out.data = calloc(h*w*c, sizeof(float)); |
| | | return out; |
| | | } |
| | | |
| | | image make_random_image(int w, int h, int c) |
| | | { |
| | | image out = make_empty_image(w,h,c); |
| | | out.data = calloc(h*w*c, sizeof(float)); |
| | | int i; |
| | | for(i = 0; i < w*h*c; ++i){ |
| | | out.data[i] = (rand_normal() * .25) + .5; |
| | | } |
| | | return out; |
| | | } |
| | | |
| | | image float_to_image(int w, int h, int c, float *data) |
| | | { |
| | | image out = make_empty_image(w,h,c); |
| | | out.data = data; |
| | | return out; |
| | | } |
| | | |
| | | image rotate_crop_image(image im, float rad, float s, int w, int h, int dx, int dy) |
| | | { |
| | | int x, y, c; |
| | | float cx = im.w/2.; |
| | | float cy = im.h/2.; |
| | | image rot = make_image(w, h, im.c); |
| | | for(c = 0; c < im.c; ++c){ |
| | | for(y = 0; y < h; ++y){ |
| | | for(x = 0; x < w; ++x){ |
| | | float rx = cos(rad)*(x/s + dx/s -cx) - sin(rad)*(y/s + dy/s -cy) + cx; |
| | | float ry = sin(rad)*(x/s + dx/s -cx) + cos(rad)*(y/s + dy/s -cy) + cy; |
| | | float val = bilinear_interpolate(im, rx, ry, c); |
| | | set_pixel(rot, x, y, c, val); |
| | | image crop_image(image im, int dx, int dy, int w, int h) |
| | | { |
| | | image cropped = make_image(w, h, im.c); |
| | | int i, j, k; |
| | | for(k = 0; k < im.c; ++k){ |
| | | for(j = 0; j < h; ++j){ |
| | | for(i = 0; i < w; ++i){ |
| | | int r = j + dy; |
| | | int c = i + dx; |
| | | float val = 0; |
| | | r = constrain_int(r, 0, im.h-1); |
| | | c = constrain_int(c, 0, im.w-1); |
| | | if (r >= 0 && r < im.h && c >= 0 && c < im.w) { |
| | | val = get_pixel(im, c, r, k); |
| | | } |
| | | set_pixel(cropped, i, j, k, val); |
| | | } |
| | | } |
| | | return rot; |
| | | } |
| | | |
| | | image rotate_image(image im, float rad) |
| | | { |
| | | int x, y, c; |
| | | float cx = im.w/2.; |
| | | float cy = im.h/2.; |
| | | image rot = make_image(im.w, im.h, im.c); |
| | | for(c = 0; c < im.c; ++c){ |
| | | for(y = 0; y < im.h; ++y){ |
| | | for(x = 0; x < im.w; ++x){ |
| | | float rx = cos(rad)*(x-cx) - sin(rad)*(y-cy) + cx; |
| | | float ry = sin(rad)*(x-cx) + cos(rad)*(y-cy) + cy; |
| | | float val = bilinear_interpolate(im, rx, ry, c); |
| | | set_pixel(rot, x, y, c, val); |
| | | } |
| | | } |
| | | } |
| | | return rot; |
| | | } |
| | | |
| | | void translate_image(image m, float s) |
| | | { |
| | | int i; |
| | | for(i = 0; i < m.h*m.w*m.c; ++i) m.data[i] += s; |
| | | } |
| | | |
| | | void scale_image(image m, float s) |
| | | { |
| | | int i; |
| | | for(i = 0; i < m.h*m.w*m.c; ++i) m.data[i] *= s; |
| | | } |
| | | |
| | | image crop_image(image im, int dx, int dy, int w, int h) |
| | | { |
| | | image cropped = make_image(w, h, im.c); |
| | | int i, j, k; |
| | | for(k = 0; k < im.c; ++k){ |
| | | for(j = 0; j < h; ++j){ |
| | | for(i = 0; i < w; ++i){ |
| | | int r = j + dy; |
| | | int c = i + dx; |
| | | float val = 0; |
| | | r = constrain_int(r, 0, im.h-1); |
| | | c = constrain_int(c, 0, im.w-1); |
| | | if (r >= 0 && r < im.h && c >= 0 && c < im.w) { |
| | | val = get_pixel(im, c, r, k); |
| | | } |
| | | set_pixel(cropped, i, j, k, val); |
| | | } |
| | | } |
| | | } |
| | | return cropped; |
| | | } |
| | | return cropped; |
| | | } |
| | | |
| | | int best_3d_shift_r(image a, image b, int min, int max) |
| | | { |
| | |
| | | v = max; |
| | | if(max == 0){ |
| | | s = 0; |
| | | h = -1; |
| | | h = 0; |
| | | }else{ |
| | | s = delta/max; |
| | | if(r == max){ |
| | |
| | | h = 4 + (r - g) / delta; |
| | | } |
| | | if (h < 0) h += 6; |
| | | h = h/6.; |
| | | } |
| | | set_pixel(im, i, j, 0, h); |
| | | set_pixel(im, i, j, 1, s); |
| | |
| | | float f, p, q, t; |
| | | for(j = 0; j < im.h; ++j){ |
| | | for(i = 0; i < im.w; ++i){ |
| | | h = get_pixel(im, i , j, 0); |
| | | h = 6 * get_pixel(im, i , j, 0); |
| | | s = get_pixel(im, i , j, 1); |
| | | v = get_pixel(im, i , j, 2); |
| | | if (s == 0) { |
| | |
| | | } |
| | | } |
| | | |
| | | void translate_image_channel(image im, int c, float v) |
| | | { |
| | | int i, j; |
| | | for(j = 0; j < im.h; ++j){ |
| | | for(i = 0; i < im.w; ++i){ |
| | | float pix = get_pixel(im, i, j, c); |
| | | pix = pix+v; |
| | | set_pixel(im, i, j, c, pix); |
| | | } |
| | | } |
| | | } |
| | | |
| | | image binarize_image(image im) |
| | | { |
| | | image c = copy_image(im); |
| | |
| | | constrain_image(im); |
| | | } |
| | | |
| | | void hue_image(image im, float hue) |
| | | { |
| | | rgb_to_hsv(im); |
| | | int i; |
| | | for(i = 0; i < im.w*im.h; ++i){ |
| | | im.data[i] = im.data[i] + hue; |
| | | if (im.data[i] > 1) im.data[i] -= 1; |
| | | if (im.data[i] < 0) im.data[i] += 1; |
| | | } |
| | | hsv_to_rgb(im); |
| | | constrain_image(im); |
| | | } |
| | | |
| | | void exposure_image(image im, float sat) |
| | | { |
| | | rgb_to_hsv(im); |
| | |
| | | constrain_image(im); |
| | | } |
| | | |
| | | void distort_image(image im, float hue, float sat, float val) |
| | | { |
| | | rgb_to_hsv(im); |
| | | scale_image_channel(im, 1, sat); |
| | | scale_image_channel(im, 2, val); |
| | | int i; |
| | | for(i = 0; i < im.w*im.h; ++i){ |
| | | im.data[i] = im.data[i] + hue; |
| | | if (im.data[i] > 1) im.data[i] -= 1; |
| | | if (im.data[i] < 0) im.data[i] += 1; |
| | | } |
| | | hsv_to_rgb(im); |
| | | constrain_image(im); |
| | | } |
| | | |
| | | void random_distort_image(image im, float hue, float saturation, float exposure) |
| | | { |
| | | float dhue = rand_uniform(-hue, hue); |
| | | float dsat = rand_scale(saturation); |
| | | float dexp = rand_scale(exposure); |
| | | distort_image(im, dhue, dsat, dexp); |
| | | } |
| | | |
| | | void saturate_exposure_image(image im, float sat, float exposure) |
| | | { |
| | | rgb_to_hsv(im); |
| | |
| | | return resized; |
| | | } |
| | | |
| | | #include "cuda.h" |
| | | |
| | | void test_resize(char *filename) |
| | | { |
| | |
| | | printf("L2 Norm: %f\n", mag); |
| | | image gray = grayscale_image(im); |
| | | |
| | | image sat2 = copy_image(im); |
| | | saturate_image(sat2, 2); |
| | | image c1 = copy_image(im); |
| | | image c2 = copy_image(im); |
| | | image c3 = copy_image(im); |
| | | image c4 = copy_image(im); |
| | | distort_image(c1, .1, 1.5, 1.5); |
| | | distort_image(c2, -.1, .66666, .66666); |
| | | distort_image(c3, .1, 1.5, .66666); |
| | | distort_image(c4, .1, .66666, 1.5); |
| | | |
| | | image sat5 = copy_image(im); |
| | | saturate_image(sat5, .5); |
| | | |
| | | image exp2 = copy_image(im); |
| | | exposure_image(exp2, 2); |
| | | |
| | | image exp5 = copy_image(im); |
| | | exposure_image(exp5, .5); |
| | | |
| | | image bin = binarize_image(im); |
| | | |
| | | /* |
| | | #ifdef GPU |
| | | image r = resize_image(im, im.w, im.h); |
| | | image black = make_image(im.w*2 + 3, im.h*2 + 3, 9); |
| | | image black2 = make_image(im.w, im.h, 3); |
| | | |
| | | float *r_gpu = cuda_make_array(r.data, r.w*r.h*r.c); |
| | | float *black_gpu = cuda_make_array(black.data, black.w*black.h*black.c); |
| | | float *black2_gpu = cuda_make_array(black2.data, black2.w*black2.h*black2.c); |
| | | shortcut_gpu(3, r.w, r.h, 1, r_gpu, black.w, black.h, 3, black_gpu); |
| | | //flip_image(r); |
| | | //shortcut_gpu(3, r.w, r.h, 1, r.data, black.w, black.h, 3, black.data); |
| | | |
| | | shortcut_gpu(3, black.w, black.h, 3, black_gpu, black2.w, black2.h, 1, black2_gpu); |
| | | cuda_pull_array(black_gpu, black.data, black.w*black.h*black.c); |
| | | cuda_pull_array(black2_gpu, black2.data, black2.w*black2.h*black2.c); |
| | | show_image_layers(black, "Black"); |
| | | show_image(black2, "Recreate"); |
| | | #endif |
| | | */ |
| | | image rot = rotate_crop_image(im, -.2618, 1, im.w/2, im.h/2, 0, 0); |
| | | image rot3 = rotate_crop_image(im, -.2618, 2, im.w, im.h, im.w/2, 0); |
| | | image rot2 = rotate_crop_image(im, -.2618, 1, im.w, im.h, 0, 0); |
| | | show_image(rot, "Rotated"); |
| | | show_image(rot2, "base"); |
| | | |
| | | show_image(rot3, "Rotated2"); |
| | | |
| | | /* |
| | | show_image(im, "Original"); |
| | | show_image(bin, "Binary"); |
| | | show_image(gray, "Gray"); |
| | | show_image(sat2, "Saturation-2"); |
| | | show_image(sat5, "Saturation-.5"); |
| | | show_image(exp2, "Exposure-2"); |
| | | show_image(exp5, "Exposure-.5"); |
| | | */ |
| | | show_image(c1, "C1"); |
| | | show_image(c2, "C2"); |
| | | show_image(c3, "C3"); |
| | | show_image(c4, "C4"); |
| | | #ifdef OPENCV |
| | | cvWaitKey(0); |
| | | while(1){ |
| | | float exposure = 1.15; |
| | | float saturation = 1.15; |
| | | float hue = .05; |
| | | |
| | | image c = copy_image(im); |
| | | |
| | | float dexp = rand_scale(exposure); |
| | | float dsat = rand_scale(saturation); |
| | | float dhue = rand_uniform(-hue, hue); |
| | | |
| | | distort_image(c, dhue, dsat, dexp); |
| | | show_image(c, "rand"); |
| | | printf("%f %f %f\n", dhue, dsat, dexp); |
| | | free_image(c); |
| | | cvWaitKey(0); |
| | | } |
| | | #endif |
| | | } |
| | | |
| | |
| | | image sized = resize_image(m, w, h); |
| | | */ |
| | | normalize_image(m); |
| | | image sized = resize_image(m, m.w, m.h); |
| | | save_image(sized, window); |
| | | show_image(sized, window); |
| | | free_image(sized); |
| | | save_image(m, window); |
| | | show_image(m, window); |
| | | free_image(m); |
| | | } |
| | | |