shithub: libvpx

Download patch

ref: 1d0ae2e63c29969ac710e202391498be7f861dda
parent: c5be54eef37365dca6da20bb8f98398178975d12
parent: 44f349df62e105860e8faeb29c5e3a6b9e61615e
author: Ronald S. Bultje <rbultje@google.com>
date: Tue Jun 25 09:51:04 EDT 2013

Merge "Don't skip right/bottom border pixels in SSIM calculations."

--- a/vp9/encoder/vp9_ssim.c
+++ b/vp9/encoder/vp9_ssim.c
@@ -88,8 +88,9 @@
   double ssim_total = 0;
 
   // sample point start with each 4x4 location
-  for (i = 0; i < height - 8; i += 4, img1 += stride_img1 * 4, img2 += stride_img2 * 4) {
-    for (j = 0; j < width - 8; j += 4) {
+  for (i = 0; i <= height - 8;
+       i += 4, img1 += stride_img1 * 4, img2 += stride_img2 * 4) {
+    for (j = 0; j <= width - 8; j += 4) {
       double v = ssim_8x8(img1 + j, stride_img1, img2 + j, stride_img2);
       ssim_total += v;
       samples++;