Using CV_CheckTypeEQ function

Author: Nerdyvedi

modules/ximgproc/src/globalmatting.cpp

@@ -435,16 +435,16 @@ void GlobalMatting::expansionOfKnownRegions(cv::InputArray _img, cv::InputOutput
 
     if (img.empty())
 	CV_Error(CV_StsBadArg, "image is empty");
-    if (img.type() != CV_8UC3)
-	CV_Error(CV_StsBadArg, "image mush have CV_8UC3 type");
+
+    CV_CheckTypeEQ(img.type(),CV_8UC3, "image must have CV_8UC3 type");
 
     if (trimap.empty())
 	CV_Error(CV_StsBadArg, "trimap is empty");
-    if (trimap.type() != CV_8UC1)
-	CV_Error(CV_StsBadArg, "trimap mush have CV_8UC1 type");
+	
+    CV_CheckTypeEQ(trimap.type(),CV_8UC1, "trimap must have CV_8UC1 type");
 
     if (img.size() != trimap.size())
-	CV_Error(CV_StsBadArg, "image and trimap mush have same size");
+	CV_Error(CV_StsBadArg, "image and trimap must have same size");
 
     for (int i = 0; i < niter; ++i)
 	expansionOfKnownRegionsHelper(img, trimap, i + 1, float(niter - i));
@@ -520,13 +520,13 @@ void GlobalMatting::globalMatting(cv::InputArray _image, cv::InputArray _trimap,
 
     if (image.empty())
 	CV_Error(CV_StsBadArg, "image is empty");
-    if (image.type() != CV_8UC3)
-	CV_Error(CV_StsBadArg, "image mush have CV_8UC3 type");
+   
+    CV_CheckTypeEQ(image,CV_8UC3,"image mush have CV_8UC3 type");
 
     if (trimap.empty())
 	CV_Error(CV_StsBadArg, "trimap is empty");
-    if (trimap.type() != CV_8UC1)
-	CV_Error(CV_StsBadArg, "trimap mush have CV_8UC1 type");
+    
+    CV_CheckTypeEQ(trimap,CV_8UC1,"trimap mush have CV_8UC1 type");
 
     if (image.size() != trimap.size())
 	CV_Error(CV_StsBadArg, "image and trimap mush have same size");