From 44f349df62e105860e8faeb29c5e3a6b9e61615e Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rbultje@google.com>
Date: Mon, 10 Jun 2013 11:36:04 -0700
Subject: [PATCH] Don't skip right/bottom border pixels in SSIM calculations.

Change-Id: I75acb55ade54bef6ad7703ed5e691581fa2f8fe1
---
 vp9/encoder/vp9_ssim.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/vp9/encoder/vp9_ssim.c b/vp9/encoder/vp9_ssim.c
index 363ed8492..d417f6fe9 100644
--- a/vp9/encoder/vp9_ssim.c
+++ b/vp9/encoder/vp9_ssim.c
@@ -88,8 +88,9 @@ double vp9_ssim2(uint8_t *img1, uint8_t *img2, int stride_img1,
   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++;