| | |
| | | |
| | | unsigned int data_seed; |
| | | |
| | | struct load_args{ |
| | | typedef struct load_args{ |
| | | char **paths; |
| | | int n; |
| | | int m; |
| | |
| | | int classes; |
| | | int background; |
| | | data *d; |
| | | }; |
| | | char *path; |
| | | image *im; |
| | | image *resized; |
| | | } load_args; |
| | | |
| | | list *get_paths(char *filename) |
| | | { |
| | |
| | | return random_paths; |
| | | } |
| | | |
| | | char **find_replace_paths(char **paths, int n, char *find, char *replace) |
| | | { |
| | | char **replace_paths = calloc(n, sizeof(char*)); |
| | | int i; |
| | | for(i = 0; i < n; ++i){ |
| | | char *replaced = find_replace(paths[i], find, replace); |
| | | replace_paths[i] = copy_string(replaced); |
| | | } |
| | | return replace_paths; |
| | | } |
| | | |
| | | matrix load_image_paths_gray(char **paths, int n, int w, int h) |
| | | { |
| | | int i; |
| | | matrix X; |
| | | X.rows = n; |
| | | X.vals = calloc(X.rows, sizeof(float*)); |
| | | X.cols = 0; |
| | | |
| | | for(i = 0; i < n; ++i){ |
| | | image im = load_image(paths[i], w, h, 1); |
| | | X.vals[i] = im.data; |
| | | X.cols = im.h*im.w*im.c; |
| | | } |
| | | return X; |
| | | } |
| | | |
| | | matrix load_image_paths(char **paths, int n, int w, int h) |
| | | { |
| | | int i; |
| | |
| | | |
| | | void fill_truth_detection(char *path, float *truth, int classes, int num_boxes, int flip, int background, float dx, float dy, float sx, float sy) |
| | | { |
| | | char *labelpath = find_replace(path, "detection_images", "labels"); |
| | | char *labelpath = find_replace(path, "JPEGImages", "labels"); |
| | | labelpath = find_replace(labelpath, ".jpg", ".txt"); |
| | | labelpath = find_replace(labelpath, ".JPEG", ".txt"); |
| | | int count = 0; |
| | |
| | | |
| | | w = constrain(0, 1, w); |
| | | h = constrain(0, 1, h); |
| | | if (w == 0 || h == 0) continue; |
| | | if (w < .01 || h < .01) continue; |
| | | if(1){ |
| | | //w = sqrt(w); |
| | | //h = sqrt(h); |
| | | w = pow(w, 1./2.); |
| | | h = pow(h, 1./2.); |
| | | } |
| | | |
| | | int index = (i+j*num_boxes)*(4+classes+background); |
| | | //if(truth[index+classes+background+2]) continue; |
| | | if(truth[index+classes+background+2]) continue; |
| | | if(background) truth[index++] = 0; |
| | | truth[index+id] = 1; |
| | | index += classes; |
| | |
| | | ++count; |
| | | } |
| | | } |
| | | if(count != 1) printf("%d, %s\n", count, path); |
| | | if(count != 1) printf("Too many or too few labels: %d, %s\n", count, path); |
| | | } |
| | | |
| | | matrix load_labels_paths(char **paths, int n, char **labels, int k) |
| | |
| | | |
| | | 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_detection(random_paths[i], d.y.vals[i], classes, num_boxes, flip, background, dx, dy, 1./sx, 1./sy); |
| | | |
| | | free_image(orig); |
| | | free_image(cropped); |
| | | } |
| | | free(random_paths); |
| | | return d; |
| | | } |
| | | |
| | | void *load_image_in_thread(void *ptr) |
| | | { |
| | | load_args a = *(load_args*)ptr; |
| | | free(ptr); |
| | | *(a.im) = load_image_color(a.path, 0, 0); |
| | | *(a.resized) = resize_image(*(a.im), a.w, a.h); |
| | | return 0; |
| | | } |
| | | |
| | | pthread_t load_image_thread(char *path, image *im, image *resized, int w, int h) |
| | | { |
| | | pthread_t thread; |
| | | struct load_args *args = calloc(1, sizeof(struct load_args)); |
| | | args->path = path; |
| | | args->w = w; |
| | | args->h = h; |
| | | args->im = im; |
| | | args->resized = resized; |
| | | if(pthread_create(&thread, 0, load_image_in_thread, args)) { |
| | | error("Thread creation failed"); |
| | | } |
| | | return thread; |
| | | } |
| | | |
| | | void *load_localization_thread(void *ptr) |
| | | { |
| | | printf("Loading data: %d\n", rand_r(&data_seed)); |
| | |
| | | return thread; |
| | | } |
| | | |
| | | data load_data_writing(char **paths, int n, int m, int w, int h) |
| | | { |
| | | if(m) paths = get_random_paths(paths, n, m); |
| | | char **replace_paths = find_replace_paths(paths, n, ".png", "-label.png"); |
| | | data d; |
| | | d.shallow = 0; |
| | | d.X = load_image_paths(paths, n, w, h); |
| | | d.y = load_image_paths_gray(replace_paths, n, w/8, h/8); |
| | | if(m) free(paths); |
| | | int i; |
| | | for(i = 0; i < n; ++i) free(replace_paths[i]); |
| | | free(replace_paths); |
| | | return d; |
| | | } |
| | | |
| | | data load_data(char **paths, int n, int m, char **labels, int k, int w, int h) |
| | | { |
| | | if(m) paths = get_random_paths(paths, n, m); |