From de7018539de6e213d3cc18d8a62de2c5131cb8b8 Mon Sep 17 00:00:00 2001
From: Chaoshuai Lu <lcs@Chaoshuais-Pro.dhcp.thefacebook.com>
Date: Wed, 22 Mar 2017 22:20:42 -0700
Subject: [PATCH] Fix UIImageToMat method by taking image scale information
 into account

---
 modules/imgcodecs/src/ios_conversions.mm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/imgcodecs/src/ios_conversions.mm b/modules/imgcodecs/src/ios_conversions.mm
index 2db873acd0..202cfe30d1 100644
--- a/modules/imgcodecs/src/ios_conversions.mm
+++ b/modules/imgcodecs/src/ios_conversions.mm
@@ -97,7 +97,7 @@ UIImage* MatToUIImage(const cv::Mat& image) {
 void UIImageToMat(const UIImage* image,
                          cv::Mat& m, bool alphaExist) {
     CGColorSpaceRef colorSpace = CGImageGetColorSpace(image.CGImage);
-    CGFloat cols = image.size.width, rows = image.size.height;
+    CGFloat cols = CGImageGetWidth(image.CGImage), rows = CGImageGetHeight(image.CGImage);
     CGContextRef contextRef;
     CGBitmapInfo bitmapInfo = kCGImageAlphaPremultipliedLast;
     if (CGColorSpaceGetModel(colorSpace) == kCGColorSpaceModelMonochrome)