From 84d6533cb8112f23a34d3de76435a10f4620f4b8 Mon Sep 17 00:00:00 2001
From: AlexeyAB <alexeyab84@gmail.com>
Date: Mon, 23 Oct 2017 13:43:03 +0000
Subject: [PATCH] Fixed OpenCV usage in the yolo_console_dll.cpp

---
 src/image.c |  188 ++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 185 insertions(+), 3 deletions(-)

diff --git a/src/image.c b/src/image.c
index 5a90efd..75364e1 100644
--- a/src/image.c
+++ b/src/image.c
@@ -13,6 +13,10 @@
 #ifdef OPENCV
 #include "opencv2/highgui/highgui_c.h"
 #include "opencv2/imgproc/imgproc_c.h"
+#include "opencv2/core/version.hpp"
+#ifndef CV_VERSION_EPOCH
+#include "opencv2/videoio/videoio_c.h"
+#endif
 #endif
 
 
@@ -226,6 +230,78 @@
     }
 }
 
+#ifdef OPENCV
+void draw_detections_cv(IplImage* show_img, int num, float thresh, box *boxes, float **probs, char **names, image **alphabet, int classes)
+{
+	int i;
+
+	for (i = 0; i < num; ++i) {
+		int class = max_index(probs[i], classes);
+		float prob = probs[i][class];
+		if (prob > thresh) {
+
+			int width = show_img->height * .012;
+
+			if (0) {
+				width = pow(prob, 1. / 2.) * 10 + 1;
+				alphabet = 0;
+			}
+
+			printf("%s: %.0f%%\n", names[class], prob * 100);
+			int offset = class * 123457 % classes;
+			float red = get_color(2, offset, classes);
+			float green = get_color(1, offset, classes);
+			float blue = get_color(0, offset, classes);
+			float rgb[3];
+
+			//width = prob*20+2;
+
+			rgb[0] = red;
+			rgb[1] = green;
+			rgb[2] = blue;
+			box b = boxes[i];
+
+			int left = (b.x - b.w / 2.)*show_img->width;
+			int right = (b.x + b.w / 2.)*show_img->width;
+			int top = (b.y - b.h / 2.)*show_img->height;
+			int bot = (b.y + b.h / 2.)*show_img->height;
+
+			if (left < 0) left = 0;
+			if (right > show_img->width - 1) right = show_img->width - 1;
+			if (top < 0) top = 0;
+			if (bot > show_img->height - 1) bot = show_img->height - 1;
+
+			float const font_size = show_img->height / 1000.F;
+			CvPoint pt1, pt2, pt_text, pt_text_bg1, pt_text_bg2;
+			pt1.x = left;
+			pt1.y = top;
+			pt2.x = right;
+			pt2.y = bot;
+			pt_text.x = left;
+			pt_text.y = top - 12;
+			pt_text_bg1.x = left;
+			pt_text_bg1.y = top - (10+25*font_size);
+			pt_text_bg2.x = right;
+			pt_text_bg2.y = top;
+			CvScalar color;
+			color.val[0] = red * 256;
+			color.val[1] = green * 256;
+			color.val[2] = blue * 256;
+
+			cvRectangle(show_img, pt1, pt2, color, width, 8, 0);
+
+			cvRectangle(show_img, pt_text_bg1, pt_text_bg2, color, width, 8, 0);
+			cvRectangle(show_img, pt_text_bg1, pt_text_bg2, color, CV_FILLED, 8, 0);	// filled
+			CvScalar black_color;
+			black_color.val[0] = 0;
+			CvFont font;
+			cvInitFont(&font, CV_FONT_HERSHEY_SIMPLEX, font_size, font_size, 0, font_size * 3, 8);	
+			cvPutText(show_img, names[class], pt_text, &font, black_color);
+		}
+	}
+}
+#endif
+
 void transpose_image(image im)
 {
     assert(im.w == im.h);
@@ -437,8 +513,48 @@
         cvReleaseImage(&buffer);
     }
     cvShowImage(buff, disp);
+
     cvReleaseImage(&disp);
 }
+
+
+void show_image_cv_ipl(IplImage *disp, const char *name, const char *out_filename)
+{
+	if (disp == NULL) return;
+	char buff[256];
+	//sprintf(buff, "%s (%d)", name, windows);
+	sprintf(buff, "%s", name);
+	cvNamedWindow(buff, CV_WINDOW_NORMAL);
+	//cvMoveWindow(buff, 100*(windows%10) + 200*(windows/10), 100*(windows%10));
+	++windows;
+	cvShowImage(buff, disp);
+
+	if(out_filename)
+	{
+		CvSize size;
+		{
+			size.width = disp->width, size.height = disp->height;
+		}
+		
+		static CvVideoWriter* output_video = NULL;    // cv::VideoWriter output_video;
+		if (output_video == NULL)
+		{
+			//const char* output_name = "test_dnn_out.avi";
+			//output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('H', '2', '6', '4'), 25, size, 1);
+			output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('D', 'I', 'V', 'X'), 25, size, 1);
+			//output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'J', 'P', 'G'), 25, size, 1);
+			//output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'P', '4', 'V'), 25, size, 1);
+			//output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'P', '4', '2'), 25, size, 1);
+			//output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('X', 'V', 'I', 'D'), 25, size, 1);
+			//output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('W', 'M', 'V', '2'), 25, size, 1);
+		}
+
+		cvWriteFrame(output_video, disp);	// comment this line to improve FPS !!!
+		printf("\n cvWriteFrame \n");
+	}
+
+	cvReleaseImage(&disp);
+}
 #endif
 
 void show_image(image p, const char *name)
@@ -508,6 +624,20 @@
     return im;
 }
 
+image get_image_from_stream_resize(CvCapture *cap, int w, int h, IplImage** in_img)
+{
+	IplImage* src = cvQueryFrame(cap);
+	if (!src) return make_empty_image(0, 0, 0);
+	IplImage* new_img = cvCreateImage(cvSize(w, h), IPL_DEPTH_8U, 3);
+	*in_img = cvCreateImage(cvSize(src->width, src->height), IPL_DEPTH_8U, 3);
+	cvResize(src, *in_img, CV_INTER_LINEAR);
+	cvResize(src, new_img, CV_INTER_LINEAR);
+	image im = ipl_to_image(new_img);
+	cvReleaseImage(&new_img);
+	rgbgr_image(im);
+	return im;
+}
+
 void save_image_jpg(image p, const char *name)
 {
     image copy = copy_image(p);
@@ -753,6 +883,51 @@
 #endif
 }
 
+void fill_image(image m, float s)
+{
+	int i;
+	for (i = 0; i < m.h*m.w*m.c; ++i) m.data[i] = s;
+}
+
+void letterbox_image_into(image im, int w, int h, image boxed)
+{
+	int new_w = im.w;
+	int new_h = im.h;
+	if (((float)w / im.w) < ((float)h / im.h)) {
+		new_w = w;
+		new_h = (im.h * w) / im.w;
+	}
+	else {
+		new_h = h;
+		new_w = (im.w * h) / im.h;
+	}
+	image resized = resize_image(im, new_w, new_h);
+	embed_image(resized, boxed, (w - new_w) / 2, (h - new_h) / 2);
+	free_image(resized);
+}
+
+image letterbox_image(image im, int w, int h)
+{
+	int new_w = im.w;
+	int new_h = im.h;
+	if (((float)w / im.w) < ((float)h / im.h)) {
+		new_w = w;
+		new_h = (im.h * w) / im.w;
+	}
+	else {
+		new_h = h;
+		new_w = (im.w * h) / im.h;
+	}
+	image resized = resize_image(im, new_w, new_h);
+	image boxed = make_image(w, h, im.c);
+	fill_image(boxed, .5);
+	//int i;
+	//for(i = 0; i < boxed.w*boxed.h*boxed.c; ++i) boxed.data[i] = 0;
+	embed_image(resized, boxed, (w - new_w) / 2, (h - new_h) / 2);
+	free_image(resized);
+	return boxed;
+}
+
 image resize_max(image im, int max)
 {
     int w = im.w;
@@ -1027,7 +1202,7 @@
 
 void random_distort_image(image im, float hue, float saturation, float exposure)
 {
-    float dhue = rand_uniform(-hue, hue);
+    float dhue = rand_uniform_strong(-hue, hue);
     float dsat = rand_scale(saturation);
     float dexp = rand_scale(exposure);
     distort_image(im, dhue, dsat, dexp);
@@ -1179,9 +1354,16 @@
 image load_image(char *filename, int w, int h, int c)
 {
 #ifdef OPENCV
-    image out = load_image_cv(filename, c);
+
+#ifndef CV_VERSION_EPOCH
+	image out = load_image_stb(filename, c);	// OpenCV 3.x
+	//image out = load_image_cv(filename, c);
 #else
-    image out = load_image_stb(filename, c);
+	image out = load_image_cv(filename, c);		// OpenCV 2.4.x
+#endif
+
+#else
+    image out = load_image_stb(filename, c);	// without OpenCV
 #endif
 
     if((h && w) && (h != out.h || w != out.w)){

--
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