update grfmt_gdal.cpp

modules/imgcodecs/src/grfmt_gdal.cpp

@@ -104,58 +104,32 @@ int gdal2opencv( const GDALDataType& gdalType, const int& channels ){
 
         /// UInt8
         case GDT_Byte:
-            if( channels == 1 ){ return CV_8UC1; }
-            if( channels == 3 ){ return CV_8UC3; }
-            if( channels == 4 ){ return CV_8UC4; }
-            else { return CV_8UC(channels); }
-            return -1;
+            return CV_8UC(channels);
 
         /// UInt16
         case GDT_UInt16:
-            if( channels == 1 ){ return CV_16UC1; }
-            if( channels == 3 ){ return CV_16UC3; }
-            if( channels == 4 ){ return CV_16UC4; }
-            else { return CV_16UC(channels); }
-            return -1;
+            return CV_16UC(channels);
 
         /// Int16
         case GDT_Int16:
-            if( channels == 1 ){ return CV_16SC1; }
-            if( channels == 3 ){ return CV_16SC3; }
-            if( channels == 4 ){ return CV_16SC4; }
-            else { return CV_16SC(channels); }
-            return -1;
+            return CV_16SC(channels);
 
         /// UInt32
         case GDT_UInt32:
         case GDT_Int32:
-            if( channels == 1 ){ return CV_32SC1; }
-            if( channels == 3 ){ return CV_32SC3; }
-            if( channels == 4 ){ return CV_32SC4; }
-            else { return CV_32SC(channels); }
-            return -1;
+            return CV_32SC(channels);
 
         case GDT_Float32:
-            if( channels == 1 ){ return CV_32FC1; }
-            if( channels == 3 ){ return CV_32FC3; }
-            if( channels == 4 ){ return CV_32FC4; }
-            else { return CV_32FC(channels); }
-            return -1;
+            return CV_32FC(channels);
 
         case GDT_Float64:
-            if( channels == 1 ){ return CV_64FC1; }
-            if( channels == 3 ){ return CV_64FC3; }
-            if( channels == 4 ){ return CV_64FC4; }
-            else { return CV_64FC(channels); }
-            return -1;
+            return CV_64FC(channels);
 
         default:
             std::cout << "Unknown GDAL Data Type" << std::endl;
             std::cout << "Type: " << GDALGetDataTypeName(gdalType) << std::endl;
             return -1;
     }
-
-    return -1;
 }
 
 /**
@@ -163,7 +137,6 @@ int gdal2opencv( const GDALDataType& gdalType, const int& channels ){
 */
 GdalDecoder::GdalDecoder(){
 
-
     // set a dummy signature
     m_signature="0";
     for( size_t i=0; i<160; i++ ){
@@ -182,7 +155,6 @@ GdalDecoder::GdalDecoder(){
 */
 GdalDecoder::~GdalDecoder(){
 
-
     if( m_dataset != NULL ){
        close();
     }
@@ -383,10 +355,7 @@ bool GdalDecoder::readData( Mat& img ){
 
 
     // make sure the image is the proper size
-    if( img.size().height != m_height ){
-        return false;
-    }
-    if( img.size().width != m_width ){
+    if( img.size() != Size(m_width, m_height) ){
         return false;
     }
 
@@ -398,7 +367,6 @@ bool GdalDecoder::readData( Mat& img ){
     // set the image to zero
     img = 0;
 
-
     // iterate over each raster band
     // note that OpenCV does bgr rather than rgb
     int nChannels = m_dataset->GetRasterCount();
@@ -452,8 +420,6 @@ bool GdalDecoder::readData( Mat& img ){
 
         // delete our temp pointer
         delete [] scanline;
-
-
     }
 
     return true;