checkSignature 78 modules/imgcodecs/src/grfmt_base.cpp bool BaseImageDecoder::checkSignature( const String& signature ) const checkSignature 522 modules/imgcodecs/src/grfmt_gdal.cpp bool GdalDecoder::checkSignature( const String& signature )const{ checkSignature 102 modules/imgcodecs/src/grfmt_hdr.cpp bool HdrDecoder::checkSignature( const String& signature ) const checkSignature 110 modules/imgcodecs/src/grfmt_pxm.cpp bool PxMDecoder::checkSignature( const String& signature ) const checkSignature 101 modules/imgcodecs/src/grfmt_tiff.cpp bool TiffDecoder::checkSignature( const String& signature ) const checkSignature 74 modules/imgcodecs/src/grfmt_webp.cpp bool WebPDecoder::checkSignature(const String & signature) const