xphoto fix inpaint fsr

Author: berak

modules/xphoto/src/inpainting_fsr.impl.hpp

@@ -748,26 +748,28 @@ icvDetermineProcessingOrder(
 
 
 static
-void inpaint_fsr(const Mat &src, const Mat &mask, Mat &dst, const int algorithmType)
+void inpaint_fsr(const Mat &src_, const Mat &mask, Mat &dst, const int algorithmType)
 {
     CV_Assert(algorithmType == xphoto::INPAINT_FSR_BEST || algorithmType == xphoto::INPAINT_FSR_FAST);
-    CV_Check(src.channels(), src.channels() == 1 || src.channels() == 3, "");
+    CV_Check(src_.channels(), src_.channels() == 1 || src.channels() == 3, "");
+    Mat src;
     switch (src.type())
     {
         case CV_8UC1:
         case CV_8UC3:
+            src = src_;
             break;
         case CV_16UC1:
         case CV_16UC3:
         {
             double minRange, maxRange;
-            minMaxLoc(src, &minRange, &maxRange);
+            minMaxLoc(src_, &minRange, &maxRange);
             if (minRange < 0 || maxRange > 65535)
             {
                 CV_Error(Error::StsUnsupportedFormat, "Unsupported source image format!");
                 break;
             }
-            src.convertTo(src, CV_8U, 1/257.0);
+            src_.convertTo(src, CV_8U, 1/257.0);
             break;
         }
         case CV_32FC1:
@@ -776,13 +778,13 @@ void inpaint_fsr(const Mat &src, const Mat &mask, Mat &dst, const int algorithmT
         case CV_64FC3:
         {
             double minRange, maxRange;
-            minMaxLoc(src, &minRange, &maxRange);
+            minMaxLoc(src_, &minRange, &maxRange);
             if (minRange < -FLT_EPSILON || maxRange > (1.0 + FLT_EPSILON))
             {
                 CV_Error(Error::StsUnsupportedFormat, "Unsupported source image format!");
                 break;
             }
-            src.convertTo(src, CV_8U, 255.0);
+            src_.convertTo(src, CV_8U, 255.0);
             break;
         }
         default: