add enum Bayer**2BGRA

 - let it possible to reach Bayer2BGRA conversion

modules/imgproc/include/opencv2/imgproc.hpp

@@ -769,8 +769,18 @@ enum ColorConversionCodes {
     COLOR_BayerRG2RGB_EA  = COLOR_BayerBG2BGR_EA,
     COLOR_BayerGR2RGB_EA  = COLOR_BayerGB2BGR_EA,
 
-
-    COLOR_COLORCVT_MAX  = 139
+    //! Demosaicing with alpha channel
+    COLOR_BayerBG2BGRA = 139,
+    COLOR_BayerGB2BGRA = 140,
+    COLOR_BayerRG2BGRA = 141,
+    COLOR_BayerGR2BGRA = 142,
+
+    COLOR_BayerBG2RGBA = COLOR_BayerRG2BGRA,
+    COLOR_BayerGB2RGBA = COLOR_BayerGR2BGRA,
+    COLOR_BayerRG2RGBA = COLOR_BayerBG2BGRA,
+    COLOR_BayerGR2RGBA = COLOR_BayerGB2BGRA,
+
+    COLOR_COLORCVT_MAX  = 143
 };
 
 /** types of intersection between rectangles

modules/imgproc/include/opencv2/imgproc/types_c.h

@@ -349,7 +349,17 @@ enum
     CV_BayerRG2RGB_EA = CV_BayerBG2BGR_EA,
     CV_BayerGR2RGB_EA = CV_BayerGB2BGR_EA,
 
-    CV_COLORCVT_MAX  = 139
+    CV_BayerBG2BGRA =139,
+    CV_BayerGB2BGRA =140,
+    CV_BayerRG2BGRA =141,
+    CV_BayerGR2BGRA =142,
+
+    CV_BayerBG2RGBA =CV_BayerRG2BGRA,
+    CV_BayerGB2RGBA =CV_BayerGR2BGRA,
+    CV_BayerRG2RGBA =CV_BayerBG2BGRA,
+    CV_BayerGR2RGBA =CV_BayerGB2BGRA,
+
+    CV_COLORCVT_MAX  = 143
 };
 
 

modules/imgproc/perf/perf_cvt_color.cpp

@@ -103,10 +103,10 @@ CV_ENUM(CvtMode,
 
 
 CV_ENUM(CvtModeBayer,
-    COLOR_BayerBG2BGR, COLOR_BayerBG2BGR_VNG, COLOR_BayerBG2GRAY,
-    COLOR_BayerGB2BGR, COLOR_BayerGB2BGR_VNG, COLOR_BayerGB2GRAY,
-    COLOR_BayerGR2BGR, COLOR_BayerGR2BGR_VNG, COLOR_BayerGR2GRAY,
-    COLOR_BayerRG2BGR, COLOR_BayerRG2BGR_VNG, COLOR_BayerRG2GRAY
+    COLOR_BayerBG2BGR, COLOR_BayerBG2BGRA, COLOR_BayerBG2BGR_VNG, COLOR_BayerBG2GRAY,
+    COLOR_BayerGB2BGR, COLOR_BayerGB2BGRA, COLOR_BayerGB2BGR_VNG, COLOR_BayerGB2GRAY,
+    COLOR_BayerGR2BGR, COLOR_BayerGR2BGRA, COLOR_BayerGR2BGR_VNG, COLOR_BayerGR2GRAY,
+    COLOR_BayerRG2BGR, COLOR_BayerRG2BGRA, COLOR_BayerRG2BGR_VNG, COLOR_BayerRG2GRAY
     )
 
 
@@ -149,6 +149,8 @@ ChPair getConversionInfo(int cvtMode)
     case COLOR_YUV2BGRA_NV21: case COLOR_YUV2RGBA_NV21:
     case COLOR_YUV2BGRA_YV12: case COLOR_YUV2RGBA_YV12:
     case COLOR_YUV2BGRA_IYUV: case COLOR_YUV2RGBA_IYUV:
+    case COLOR_BayerBG2BGRA: case COLOR_BayerGB2BGRA:
+    case COLOR_BayerGR2BGRA: case COLOR_BayerRG2BGRA:
         return ChPair(1,4);
     case COLOR_BGR5552GRAY: case COLOR_BGR5652GRAY:
         return ChPair(2,1);

modules/imgproc/src/color.cpp

@@ -9852,6 +9852,7 @@ void cv::cvtColor( InputArray _src, OutputArray _dst, int code, int dcn )
         case CV_BayerBG2BGR: case CV_BayerGB2BGR: case CV_BayerRG2BGR: case CV_BayerGR2BGR:
         case CV_BayerBG2BGR_VNG: case CV_BayerGB2BGR_VNG: case CV_BayerRG2BGR_VNG: case CV_BayerGR2BGR_VNG:
         case CV_BayerBG2BGR_EA: case CV_BayerGB2BGR_EA: case CV_BayerRG2BGR_EA: case CV_BayerGR2BGR_EA:
+        case CV_BayerBG2BGRA: case CV_BayerGB2BGRA: case CV_BayerRG2BGRA: case CV_BayerGR2BGRA:
             demosaicing(src, _dst, code, dcn);
             break;
 

modules/imgproc/src/demosaicing.cpp

@@ -1643,6 +1643,7 @@ void cv::demosaicing(InputArray _src, OutputArray _dst, int code, int dcn)
         break;
 
     case CV_BayerBG2BGR: case CV_BayerGB2BGR: case CV_BayerRG2BGR: case CV_BayerGR2BGR:
+    case CV_BayerBG2BGRA: case CV_BayerGB2BGRA: case CV_BayerRG2BGRA: case CV_BayerGR2BGRA:
     case CV_BayerBG2BGR_VNG: case CV_BayerGB2BGR_VNG: case CV_BayerRG2BGR_VNG: case CV_BayerGR2BGR_VNG:
         {
             if (dcn <= 0)
@@ -1652,8 +1653,10 @@ void cv::demosaicing(InputArray _src, OutputArray _dst, int code, int dcn)
             _dst.create(sz, CV_MAKE_TYPE(depth, dcn));
             Mat dst_ = _dst.getMat();
 
-            if( code == CV_BayerBG2BGR || code == CV_BayerGB2BGR ||
-                code == CV_BayerRG2BGR || code == CV_BayerGR2BGR )
+            if( code == CV_BayerBG2BGR || code == CV_BayerBG2BGRA ||
+                code == CV_BayerGB2BGR || code == CV_BayerGB2BGRA ||
+                code == CV_BayerRG2BGR || code == CV_BayerRG2BGRA ||
+                code == CV_BayerGR2BGR || code == CV_BayerGR2BGRA )
             {
                 if( depth == CV_8U )
                     Bayer2RGB_<uchar, SIMDBayerInterpolator_8u>(src, dst_, code);