Fixed mixed cloning bug

modules/photo/src/seamless_cloning.hpp

@@ -455,6 +455,8 @@ void Cloning::normal_clone(Mat &I, Mat &mask, Mat &wmask, Mat &cloned, int num)
 {
     int w = I.size().width;
     int h = I.size().height;
+    int channel = I.channels();
+
 
     initialization(I,mask,wmask);
 
@@ -466,21 +468,34 @@ void Cloning::normal_clone(Mat &I, Mat &mask, Mat &wmask, Mat &cloned, int num)
     }
     else if(num == 2)
     {
+
         for(int i=0;i < h; i++)
+        {
            for(int j=0; j < w; j++)
             {
-                if(abs(sgx.at<float>(i,j) - sgy.at<float>(i,j)) > abs(grx.at<float>(i,j) - gry.at<float>(i,j)))
+                for(int c=0;c<channel;++c)
+                {
+                    if(abs(sgx.at<float>(i,j*channel+c) - sgy.at<float>(i,j*channel+c)) >
+                            abs(grx.at<float>(i,j*channel+c) - gry.at<float>(i,j*channel+c)))
                     {
-                    srx32.at<float>(i,j) = sgx.at<float>(i,j) * smask.at<float>(i,j);
-                    sry32.at<float>(i,j) = sgy.at<float>(i,j) * smask.at<float>(i,j);
+
+                        srx32.at<float>(i,j*channel+c) = sgx.at<float>(i,j*channel+c)
+                            * smask.at<float>(i,j);
+                        sry32.at<float>(i,j*channel+c) = sgy.at<float>(i,j*channel+c)
+                            * smask.at<float>(i,j);
                     }
                     else
                     {
-                    srx32.at<float>(i,j) = grx.at<float>(i,j) * smask.at<float>(i,j);
-                    sry32.at<float>(i,j) = gry.at<float>(i,j) * smask.at<float>(i,j);
+                        srx32.at<float>(i,j*channel+c) = grx.at<float>(i,j*channel+c)
+                            * smask.at<float>(i,j);
+                        sry32.at<float>(i,j*channel+c) = gry.at<float>(i,j*channel+c)
+                            * smask.at<float>(i,j);
+                    }
                 }
             }
         }
+
+    }
     else if(num == 3)
     {
         Mat gray = Mat(mask.size(),CV_8UC1);