From 1b5afb45838e603fa6780762eb8cc59246dc2d81 Mon Sep 17 00:00:00 2001
From: IlyaOvodov <b@ovdv.ru>
Date: Tue, 08 May 2018 11:09:35 +0000
Subject: [PATCH] Output improvements for detector results: When printing detector results, output was done in random order, obfuscating results for interpreting. Now: 1. Text output includes coordinates of rects in (left,right,top,bottom in pixels) along with label and score 2. Text output is sorted by rect lefts to simplify finding appropriate rects on image 3. If several class probs are > thresh for some detection, the most probable is written first and coordinates for others are not repeated 4. Rects are imprinted in image in order by their best class prob, so most probable rects are always on top and not overlayed by less probable ones 5. Most probable label for rect is always written first Also: 6. Message about low GPU memory include required amount
---
src/image.c | 70 +++++++++++++++++++----------------
1 files changed, 38 insertions(+), 32 deletions(-)
diff --git a/src/image.c b/src/image.c
index a397dea..14105c7 100644
--- a/src/image.c
+++ b/src/image.c
@@ -232,21 +232,22 @@
// Creates array of detections with prob > thresh and fills best_class for them
-detection** get_actual_detections(detection *dets, int dets_num, int classes, float thresh, int* selected_detections_num)
+detection_with_class* get_actual_detections(detection *dets, int dets_num, float thresh, int* selected_detections_num)
{
int selected_num = 0;
- detection** result_arr = calloc(dets_num, sizeof(detection*));
+ detection_with_class* result_arr = calloc(dets_num, sizeof(detection_with_class));
for (int i = 0; i < dets_num; ++i) {
- dets[i].best_class = -1;
- for (int j = 0; j < classes; ++j) {
- if (dets[i].prob[j] > thresh) {
- if (dets[i].best_class < 0 || dets[i].prob[dets[i].best_class] < dets[i].prob[j]) {
- dets[i].best_class = j;
- }
+ int best_class = -1;
+ float best_class_prob = thresh;
+ for (int j = 0; j < dets[i].classes; ++j) {
+ if (dets[i].prob[j] > best_class_prob ) {
+ best_class = j;
+ best_class_prob = dets[i].prob[j];
}
}
- if (dets[i].best_class >= 0) {
- result_arr[selected_num] = &(dets[i]);
+ if (best_class >= 0) {
+ result_arr[selected_num].det = dets[i];
+ result_arr[selected_num].best_class = best_class;
++selected_num;
}
}
@@ -256,36 +257,41 @@
}
// compare to sort detection** by bbox.x
-int compare_by_lefts(const void *a, const void *b) {
- const float delta = ((*(detection**)a)->bbox.x - (*(detection**)a)->bbox.w / 2) - ((*(detection**)b)->bbox.x - (*(detection**)b)->bbox.w / 2);
+int compare_by_lefts(const void *a_ptr, const void *b_ptr) {
+ const detection_with_class* a = (detection_with_class*)a_ptr;
+ const detection_with_class* b = (detection_with_class*)b_ptr;
+ const float delta = (a->det.bbox.x - a->det.bbox.w/2) - (b->det.bbox.x - b->det.bbox.w/2);
return delta < 0 ? -1 : delta > 0 ? 1 : 0;
}
// compare to sort detection** by best_class probability
int compare_by_probs(const void *a_ptr, const void *b_ptr) {
- const detection* a = *(detection**)a_ptr;
- const detection* b = *(detection**)b_ptr;
- float delta = a->prob[a->best_class] - b->prob[b->best_class];
+ const detection_with_class* a = (detection_with_class*)a_ptr;
+ const detection_with_class* b = (detection_with_class*)b_ptr;
+ float delta = a->det.prob[a->best_class] - b->det.prob[b->best_class];
return delta < 0 ? -1 : delta > 0 ? 1 : 0;
}
-void draw_detections_v3(image im, detection *dets, int num, float thresh, char **names, image **alphabet, int classes)
+void draw_detections_v3(image im, detection *dets, int num, float thresh, char **names, image **alphabet, int classes, int ext_output)
{
int selected_detections_num;
- detection** selected_detections = get_actual_detections(dets, num, classes, thresh, &selected_detections_num);
+ detection_with_class* selected_detections = get_actual_detections(dets, num, thresh, &selected_detections_num);
// text output
qsort(selected_detections, selected_detections_num, sizeof(*selected_detections), compare_by_lefts);
for (int i = 0; i < selected_detections_num; ++i) {
- const int best_class = selected_detections[i]->best_class;
- printf("%s: %.0f%%\t(left: %.0f\ttop: %.0f\tw: %0.f\th: %0.f)\n", names[best_class],
- selected_detections[i]->prob[best_class] * 100,
- (selected_detections[i]->bbox.x - selected_detections[i]->bbox.w / 2)*im.w,
- (selected_detections[i]->bbox.y - selected_detections[i]->bbox.h / 2)*im.h,
- selected_detections[i]->bbox.w*im.w, selected_detections[i]->bbox.h*im.h);
+ const int best_class = selected_detections[i].best_class;
+ printf("%s: %.0f%%", names[best_class], selected_detections[i].det.prob[best_class] * 100);
+ if (ext_output)
+ printf("\t(left: %.0f\ttop: %.0f\tw: %0.f\th: %0.f)\n",
+ (selected_detections[i].det.bbox.x - selected_detections[i].det.bbox.w / 2)*im.w,
+ (selected_detections[i].det.bbox.y - selected_detections[i].det.bbox.h / 2)*im.h,
+ selected_detections[i].det.bbox.w*im.w, selected_detections[i].det.bbox.h*im.h);
+ else
+ printf("\n");
for (int j = 0; j < classes; ++j) {
- if (selected_detections[i]->prob[j] > thresh && j != best_class) {
- printf("%s: %.0f%%\n", names[j], selected_detections[i]->prob[j] * 100);
+ if (selected_detections[i].det.prob[j] > thresh && j != best_class) {
+ printf("%s: %.0f%%\n", names[j], selected_detections[i].det.prob[j] * 100);
}
}
}
@@ -304,8 +310,8 @@
}
*/
- //printf("%d %s: %.0f%%\n", i, names[dets[i].best_class], prob*100);
- int offset = selected_detections[i]->best_class * 123457 % classes;
+ //printf("%d %s: %.0f%%\n", i, names[selected_detections[i].best_class], prob*100);
+ int offset = selected_detections[i].best_class * 123457 % classes;
float red = get_color(2, offset, classes);
float green = get_color(1, offset, classes);
float blue = get_color(0, offset, classes);
@@ -316,7 +322,7 @@
rgb[0] = red;
rgb[1] = green;
rgb[2] = blue;
- box b = selected_detections[i]->bbox;
+ box b = selected_detections[i].det.bbox;
//printf("%f %f %f %f\n", b.x, b.y, b.w, b.h);
int left = (b.x - b.w / 2.)*im.w;
@@ -338,9 +344,9 @@
draw_box_width(im, left, top, right, bot, width, red, green, blue);
if (alphabet) {
char labelstr[4096] = { 0 };
- strcat(labelstr, names[selected_detections[i]->best_class]);
+ strcat(labelstr, names[selected_detections[i].best_class]);
for (int j = 0; j < classes; ++j) {
- if (selected_detections[i]->prob[j] > thresh && j != selected_detections[i]->best_class) {
+ if (selected_detections[i].det.prob[j] > thresh && j != selected_detections[i].best_class) {
strcat(labelstr, ", ");
strcat(labelstr, names[j]);
}
@@ -349,8 +355,8 @@
draw_label(im, top + width, left, label, rgb);
free_image(label);
}
- if (selected_detections[i]->mask) {
- image mask = float_to_image(14, 14, 1, selected_detections[i]->mask);
+ if (selected_detections[i].det.mask) {
+ image mask = float_to_image(14, 14, 1, selected_detections[i].det.mask);
image resized_mask = resize_image(mask, b.w*im.w, b.h*im.h);
image tmask = threshold_image(resized_mask, .5);
embed_image(tmask, im, left, top);
--
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