| | |
| | | free(boxes); |
| | | } |
| | | |
| | | void fill_truth_localization(char *path, float *truth, int classes, int flip, float dx, float dy, float sx, float sy) |
| | | { |
| | | char *labelpath = find_replace(path, "objects", "object_labels"); |
| | | labelpath = find_replace(labelpath, ".jpg", ".txt"); |
| | | labelpath = find_replace(labelpath, ".JPEG", ".txt"); |
| | | int count; |
| | | box_label *boxes = read_boxes(labelpath, &count); |
| | | box_label box = boxes[0]; |
| | | free(boxes); |
| | | float x,y,w,h; |
| | | float left, top, right, bot; |
| | | int id; |
| | | int i; |
| | | for(i = 0; i < count; ++i){ |
| | | left = box.left * sx - dx; |
| | | right = box.right * sx - dx; |
| | | top = box.top * sy - dy; |
| | | bot = box.bottom* sy - dy; |
| | | id = box.id; |
| | | |
| | | if(flip){ |
| | | float swap = left; |
| | | left = 1. - right; |
| | | right = 1. - swap; |
| | | } |
| | | |
| | | left = constrain(0, 1, left); |
| | | right = constrain(0, 1, right); |
| | | top = constrain(0, 1, top); |
| | | bot = constrain(0, 1, bot); |
| | | |
| | | x = (left+right)/2; |
| | | y = (top+bot)/2; |
| | | w = (right - left); |
| | | h = (bot - top); |
| | | |
| | | if (x <= 0 || x >= 1 || y <= 0 || y >= 1) continue; |
| | | |
| | | w = constrain(0, 1, w); |
| | | h = constrain(0, 1, h); |
| | | if (w == 0 || h == 0) continue; |
| | | |
| | | int index = id*4; |
| | | truth[index++] = x; |
| | | truth[index++] = y; |
| | | truth[index++] = w; |
| | | truth[index++] = h; |
| | | } |
| | | } |
| | | |
| | | |
| | | #define NUMCHARS 37 |
| | | |
| | | void print_letters(float *pred, int n) |
| | |
| | | } |
| | | } |
| | | |
| | | data load_data_localization(int n, char **paths, int m, int classes, int w, int h) |
| | | { |
| | | char **random_paths = get_random_paths(paths, n, m); |
| | | int i; |
| | | data d; |
| | | d.shallow = 0; |
| | | |
| | | d.X.rows = n; |
| | | d.X.vals = calloc(d.X.rows, sizeof(float*)); |
| | | d.X.cols = h*w*3; |
| | | |
| | | int k = (4*classes); |
| | | d.y = make_matrix(n, k); |
| | | for(i = 0; i < n; ++i){ |
| | | image orig = load_image_color(random_paths[i], 0, 0); |
| | | |
| | | int oh = orig.h; |
| | | int ow = orig.w; |
| | | |
| | | int dw = 32; |
| | | int dh = 32; |
| | | |
| | | int pleft = (rand_uniform() * dw); |
| | | int pright = (rand_uniform() * dw); |
| | | int ptop = (rand_uniform() * dh); |
| | | int pbot = (rand_uniform() * dh); |
| | | |
| | | int swidth = ow - pleft - pright; |
| | | int sheight = oh - ptop - pbot; |
| | | |
| | | float sx = (float)swidth / ow; |
| | | float sy = (float)sheight / oh; |
| | | |
| | | int flip = rand_r(&data_seed)%2; |
| | | image cropped = crop_image(orig, pleft, ptop, swidth, sheight); |
| | | float dx = ((float)pleft/ow)/sx; |
| | | float dy = ((float)ptop /oh)/sy; |
| | | |
| | | free_image(orig); |
| | | image sized = resize_image(cropped, w, h); |
| | | free_image(cropped); |
| | | if(flip) flip_image(sized); |
| | | d.X.vals[i] = sized.data; |
| | | |
| | | fill_truth_localization(random_paths[i], d.y.vals[i], classes, flip, dx, dy, 1./sx, 1./sy); |
| | | } |
| | | free(random_paths); |
| | | return d; |
| | | } |
| | | |
| | | data load_data_detection_jitter_random(int n, char **paths, int m, int classes, int w, int h, int num_boxes, int background) |
| | | { |
| | | char **random_paths = get_random_paths(paths, n, m); |
| | |
| | | d.y = make_matrix(n, k); |
| | | for(i = 0; i < n; ++i){ |
| | | image orig = load_image_color(random_paths[i], 0, 0); |
| | | float exposure = rand_uniform()+1; |
| | | if(rand_uniform() > .5) exposure = 1/exposure; |
| | | |
| | | float saturation = rand_uniform()+1; |
| | | if(rand_uniform() > .5) saturation = 1/saturation; |
| | | |
| | | int oh = orig.h; |
| | | int ow = orig.w; |
| | |
| | | return d; |
| | | } |
| | | |
| | | void *load_localization_thread(void *ptr) |
| | | { |
| | | printf("Loading data: %d\n", rand_r(&data_seed)); |
| | | struct load_args a = *(struct load_args*)ptr; |
| | | *a.d = load_data_localization(a.n, a.paths, a.m, a.classes, a.w, a.h); |
| | | free(ptr); |
| | | return 0; |
| | | } |
| | | |
| | | pthread_t load_data_localization_thread(int n, char **paths, int m, int classes, int w, int h, data *d) |
| | | { |
| | | pthread_t thread; |
| | | struct load_args *args = calloc(1, sizeof(struct load_args)); |
| | | args->n = n; |
| | | args->paths = paths; |
| | | args->m = m; |
| | | args->w = w; |
| | | args->h = h; |
| | | args->classes = classes; |
| | | args->d = d; |
| | | if(pthread_create(&thread, 0, load_localization_thread, args)) { |
| | | error("Thread creation failed"); |
| | | } |
| | | return thread; |
| | | } |
| | | |
| | | void *load_detection_thread(void *ptr) |
| | | { |
| | | printf("Loading data: %d\n", rand_r(&data_seed)); |