From: Andreas Eversberg <jolly@eversberg.eu>
Date: Tue, 21 Jul 2015 19:31:23 +0000 (+0200)
Subject: Change Optical Flow calculation from integer to float
X-Git-Url: http://git.eversberg.eu/gitweb.cgi?p=colorize.git;a=commitdiff_plain;h=4fed44e68327690d61900dce163dad732899e6d9

Change Optical Flow calculation from integer to float
---

diff --git a/src/opticalflow.c b/src/opticalflow.c
index 72f9559..ff4a5c5 100644
--- a/src/opticalflow.c
+++ b/src/opticalflow.c
@@ -92,26 +92,26 @@ void *create_flow_maps(const double *img_prev_buffer, const double *img_next_buf
 	size.width = width;
 	size.height = height;
 	if (img_prev_buffer) {
-		image_prev = cvCreateImage(size, IPL_DEPTH_8U, 1);
+		image_prev = cvCreateImage(size, IPL_DEPTH_32F, 1);
 	}
 	if (img_buffer) {
-		image = cvCreateImage(size, IPL_DEPTH_8U, 1);
+		image = cvCreateImage(size, IPL_DEPTH_32F, 1);
 	}
 	if (img_next_buffer) {
-		image_next = cvCreateImage(size, IPL_DEPTH_8U, 1);
+		image_next = cvCreateImage(size, IPL_DEPTH_32F, 1);
 	}
 
 	if (image_prev) {
 		for (i = 0; i < height; i++) {
 			for (j = 0; j < width; j++) {
-				CV_IMAGE_ELEM(image_prev, uchar, i, j) = img_prev_buffer[i*width+j] * 255.0;
+				CV_IMAGE_ELEM(image_prev, float, i, j) = img_prev_buffer[i*width+j] * 65535.0;
 			}
 		}
 	}
 	if (image) {
 		for (i = 0; i < height; i++) {
 			for (j = 0; j < width; j++) {
-				CV_IMAGE_ELEM(image, uchar, i, j) = img_buffer[i*width+j] * 255.0;
+				CV_IMAGE_ELEM(image, float, i, j) = img_buffer[i*width+j] * 65535.0;
 				if (image_preview)
 					CV_IMAGE_ELEM(image_preview, uchar, i, j) = (img_buffer[i*width+j] / 2) * 255.0;
 			}
@@ -120,7 +120,7 @@ void *create_flow_maps(const double *img_prev_buffer, const double *img_next_buf
 	if (image_next) {
 		for (i = 0; i < height; i++) {
 			for (j = 0; j < width; j++) {
-				CV_IMAGE_ELEM(image_next, uchar, i, j) = img_next_buffer[i*width+j] * 255.0;
+				CV_IMAGE_ELEM(image_next, float, i, j) = img_next_buffer[i*width+j] * 65535.0;
 			}
 		}
 	}