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https://github.com/pjreddie/darknet.git
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So I have this new programming paradigm.......
This commit is contained in:
Joseph Redmon
190
src/image.c
190
src/image.c
@ -10,6 +10,12 @@
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb_image_write.h"
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#ifdef OPENCV
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#include "opencv2/highgui/highgui_c.h"
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#include "opencv2/imgproc/imgproc_c.h"
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#endif
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int windows = 0;
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float colors[6][3] = { {1,0,1}, {0,0,1},{0,1,1},{0,1,0},{1,1,0},{1,0,0} };
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@ -25,10 +31,66 @@ float get_color(int c, int x, int max)
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return r;
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}
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void composite_image(image source, image dest, int dx, int dy)
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{
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int x,y,k;
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for(k = 0; k < source.c; ++k){
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for(y = 0; y < source.h; ++y){
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for(x = 0; x < source.w; ++x){
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float val = get_pixel(source, x, y, k);
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float val2 = get_pixel_extend(dest, dx+x, dy+y, k);
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set_pixel(dest, dx+x, dy+y, k, val * val2);
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}
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}
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}
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}
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image border_image(image a, int border)
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{
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image b = make_image(a.w + 2*border, a.h + 2*border, a.c);
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int x,y,k;
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for(k = 0; k < b.c; ++k){
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for(y = 0; y < b.h; ++y){
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for(x = 0; x < b.w; ++x){
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float val = get_pixel_extend(a, x - border, y - border, k);
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set_pixel(b, x, y, k, val);
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}
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}
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}
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return b;
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}
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image tile_images(image a, image b, int dx)
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{
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if(a.w == 0) return copy_image(b);
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image c = make_image(a.w + b.w + dx, (a.h > b.h) ? a.h : b.h, (a.c > b.c) ? a.c : b.c);
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fill_cpu(c.w*c.h*c.c, 1, c.data, 1);
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embed_image(a, c, 0, 0);
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composite_image(b, c, a.w + dx, 0);
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return c;
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}
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image get_label(image *characters, char *string)
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{
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image label = make_empty_image(0,0,0);
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while(*string){
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image l = characters[(int)*string];
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image n = tile_images(label, l, -4);
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free_image(label);
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label = n;
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++string;
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}
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image b = border_image(label, label.h*.25);
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free_image(label);
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return b;
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}
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void draw_label(image a, int r, int c, image label, const float *rgb)
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{
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float ratio = (float) label.w / label.h;
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int h = label.h;
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int h = a.h * .04;
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h = label.h;
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h = a.h * .06;
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int w = ratio * h;
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image rl = resize_image(label, w, h);
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if (r - h >= 0) r = r - h;
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@ -102,7 +164,19 @@ void draw_bbox(image a, box bbox, int w, float r, float g, float b)
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}
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}
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void draw_detections(image im, int num, float thresh, box *boxes, float **probs, char **names, image *labels, int classes)
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image *load_alphabet()
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{
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int i;
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image *alphabet = calloc(128, sizeof(image));
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for(i = 32; i < 127; ++i){
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char buff[256];
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sprintf(buff, "data/labels/%d.png", i);
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alphabet[i] = load_image_color(buff, 0, 0);
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}
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return alphabet;
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}
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void draw_detections(image im, int num, float thresh, box *boxes, float **probs, char **names, image *alphabet, int classes)
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{
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int i;
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@ -111,7 +185,7 @@ void draw_detections(image im, int num, float thresh, box *boxes, float **probs,
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float prob = probs[i][class];
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if(prob > thresh){
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//int width = pow(prob, 1./2.)*30+1;
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int width = 8;
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int width = im.h * .012;
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printf("%s: %.0f%%\n", names[class], prob*100);
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int offset = class*1 % classes;
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float red = get_color(2,offset,classes);
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@ -137,7 +211,10 @@ void draw_detections(image im, int num, float thresh, box *boxes, float **probs,
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if(bot > im.h-1) bot = im.h-1;
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draw_box_width(im, left, top, right, bot, width, red, green, blue);
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if (labels) draw_label(im, top + width, left, labels[class], rgb);
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if (alphabet) {
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image label = get_label(alphabet, names[class]);
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draw_label(im, top + width, left, label, rgb);
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}
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}
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}
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}
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@ -368,6 +445,53 @@ void show_image(image p, const char *name)
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}
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#ifdef OPENCV
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image ipl_to_image(IplImage* src)
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{
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unsigned char *data = (unsigned char *)src->imageData;
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int h = src->height;
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int w = src->width;
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int c = src->nChannels;
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int step = src->widthStep;
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image out = make_image(w, h, c);
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int i, j, k, count=0;;
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for(k= 0; k < c; ++k){
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for(i = 0; i < h; ++i){
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for(j = 0; j < w; ++j){
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out.data[count++] = data[i*step + j*c + k]/255.;
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}
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}
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}
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return out;
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}
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image load_image_cv(char *filename, int channels)
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{
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IplImage* src = 0;
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int flag = -1;
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if (channels == 0) flag = -1;
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else if (channels == 1) flag = 0;
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else if (channels == 3) flag = 1;
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else {
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fprintf(stderr, "OpenCV can't force load with %d channels\n", channels);
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}
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if( (src = cvLoadImage(filename, flag)) == 0 )
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{
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fprintf(stderr, "Cannot load image \"%s\"\n", filename);
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char buff[256];
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sprintf(buff, "echo %s >> bad.list", filename);
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system(buff);
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return make_image(10,10,3);
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//exit(0);
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}
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image out = ipl_to_image(src);
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cvReleaseImage(&src);
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rgbgr_image(out);
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return out;
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}
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image get_image_from_stream(CvCapture *cap)
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{
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IplImage* src = cvQueryFrame(cap);
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@ -376,9 +500,7 @@ image get_image_from_stream(CvCapture *cap)
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rgbgr_image(im);
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return im;
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}
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#endif
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#ifdef OPENCV
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void save_image_jpg(image p, const char *name)
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{
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image copy = copy_image(p);
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@ -980,7 +1102,7 @@ void test_resize(char *filename)
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image aug = random_augment_image(im, 0, 320, 448, 320, .75);
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show_image(aug, "aug");
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free_image(aug);
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float exposure = 1.15;
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float saturation = 1.15;
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@ -1001,55 +1123,6 @@ void test_resize(char *filename)
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#endif
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}
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#ifdef OPENCV
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image ipl_to_image(IplImage* src)
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{
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unsigned char *data = (unsigned char *)src->imageData;
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int h = src->height;
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int w = src->width;
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int c = src->nChannels;
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int step = src->widthStep;
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image out = make_image(w, h, c);
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int i, j, k, count=0;;
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for(k= 0; k < c; ++k){
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for(i = 0; i < h; ++i){
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for(j = 0; j < w; ++j){
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out.data[count++] = data[i*step + j*c + k]/255.;
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}
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}
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}
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return out;
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}
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image load_image_cv(char *filename, int channels)
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{
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IplImage* src = 0;
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int flag = -1;
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if (channels == 0) flag = -1;
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else if (channels == 1) flag = 0;
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else if (channels == 3) flag = 1;
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else {
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fprintf(stderr, "OpenCV can't force load with %d channels\n", channels);
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}
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if( (src = cvLoadImage(filename, flag)) == 0 )
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{
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fprintf(stderr, "Cannot load image \"%s\"\n", filename);
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char buff[256];
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sprintf(buff, "echo %s >> bad.list", filename);
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system(buff);
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return make_image(10,10,3);
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//exit(0);
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}
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image out = ipl_to_image(src);
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cvReleaseImage(&src);
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rgbgr_image(out);
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return out;
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}
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#endif
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image load_image_stb(char *filename, int channels)
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{
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@ -1122,6 +1195,7 @@ float get_pixel_extend(image m, int x, int y, int c)
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}
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void set_pixel(image m, int x, int y, int c, float val)
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{
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if (x < 0 || y < 0 || c < 0 || x >= m.w || y >= m.h || c >= m.c) return;
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assert(x < m.w && y < m.h && c < m.c);
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m.data[c*m.h*m.w + y*m.w + x] = val;
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}
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@ -1247,5 +1321,7 @@ void show_images(image *ims, int n, char *window)
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void free_image(image m)
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{
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free(m.data);
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if(m.data){
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free(m.data);
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}
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}
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