From: Tomas Musil <tomik.musil@gmail.com>
Date: Fri, 19 Oct 2012 21:46:09 +0000 (+0200)
Subject: bug fixed in edge detection
X-Git-Url: http://git.tomasm.cz/imago.git/commitdiff_plain/8489fc00904f05607f9de5134e933d03aef3f866

bug fixed in edge detection
---

diff --git a/pcf.c b/pcf.c
index 8cb8a4b..2a43188 100644
--- a/pcf.c
+++ b/pcf.c
@@ -112,7 +112,7 @@ static PyObject* py_edge(PyObject* self, PyObject* args)
 				image[x * (j + 2) + i + 1] + image[x * (j + 2) + i + 2] +
 				image[x * (j + 1) + i - 2] + image[x * (j + 1) + i - 1] + image[x * (j + 1) + i] + 
 				image[x * (j + 1) + i + 1] + image[x * (j + 1) + i + 2] 
-				- (25 * image[x * j + i]);
+				- (24 * image[x * j + i]);
 			if (sum < 0) sum = 0;
 			if (sum > 255) sum = 255;
 			n_image[x * j + i] = sum;