From 8a504c737d2bc3b9b37cb79cb50fbf7eecda07df Mon Sep 17 00:00:00 2001
From: Tino Hager <tino.hager@nager.at>
Date: Wed, 27 Jun 2018 21:56:47 +0000
Subject: [PATCH] repair tabs spaces

---
 src/yolo_layer.c |   20 ++++++++++++++------
 1 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/yolo_layer.c b/src/yolo_layer.c
index a03c18b..f79bc41 100644
--- a/src/yolo_layer.c
+++ b/src/yolo_layer.c
@@ -200,6 +200,12 @@
                     int best_t = 0;
                     for(t = 0; t < l.max_boxes; ++t){
                         box truth = float_to_box_stride(state.truth + t*(4 + 1) + b*l.truths, 1);
+						int class_id = state.truth[t*(4 + 1) + b*l.truths + 4];
+						if (class_id >= l.classes) {
+							printf(" Warning: in txt-labels class_id=%d >= classes=%d in cfg-file. In txt-labels class_id should be [from 0 to %d] \n", class_id, l.classes, l.classes - 1);
+							getchar();
+							continue; // if label contains class_id more than number of classes in the cfg-file
+						}
                         if(!truth.x) break;
                         float iou = box_iou(pred, truth);
                         if (iou > best_iou) {
@@ -216,10 +222,10 @@
                     if (best_iou > l.truth_thresh) {
                         l.delta[obj_index] = 1 - l.output[obj_index];
 
-                        int class = state.truth[best_t*(4 + 1) + b*l.truths + 4];
-                        if (l.map) class = l.map[class];
+                        int class_id = state.truth[best_t*(4 + 1) + b*l.truths + 4];
+                        if (l.map) class_id = l.map[class_id];
                         int class_index = entry_index(l, b, n*l.w*l.h + j*l.w + i, 4 + 1);
-                        delta_yolo_class(l.output, l.delta, class_index, class, l.classes, l.w*l.h, 0, l.focal_loss);
+                        delta_yolo_class(l.output, l.delta, class_index, class_id, l.classes, l.w*l.h, 0, l.focal_loss);
                         box truth = float_to_box_stride(state.truth + best_t*(4 + 1) + b*l.truths, 1);
                         delta_yolo_box(truth, l.output, l.biases, l.mask[n], box_index, i, j, l.w, l.h, state.net.w, state.net.h, l.delta, (2-truth.w*truth.h), l.w*l.h);
                     }
@@ -228,6 +234,8 @@
         }
         for(t = 0; t < l.max_boxes; ++t){
             box truth = float_to_box_stride(state.truth + t*(4 + 1) + b*l.truths, 1);
+			int class_id = state.truth[t*(4 + 1) + b*l.truths + 4];
+			if (class_id >= l.classes) continue; // if label contains class_id more than number of classes in the cfg-file
 
             if(!truth.x) break;
             float best_iou = 0;
@@ -256,10 +264,10 @@
                 avg_obj += l.output[obj_index];
                 l.delta[obj_index] = 1 - l.output[obj_index];
 
-                int class = state.truth[t*(4 + 1) + b*l.truths + 4];
-                if (l.map) class = l.map[class];
+                int class_id = state.truth[t*(4 + 1) + b*l.truths + 4];
+                if (l.map) class_id = l.map[class_id];
                 int class_index = entry_index(l, b, mask_n*l.w*l.h + j*l.w + i, 4 + 1);
-                delta_yolo_class(l.output, l.delta, class_index, class, l.classes, l.w*l.h, &avg_cat, l.focal_loss);
+                delta_yolo_class(l.output, l.delta, class_index, class_id, l.classes, l.w*l.h, &avg_cat, l.focal_loss);
 
                 ++count;
                 ++class_count;

--
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