generic-library/opencv
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added jpeg with optimized coding support.

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This commit is contained in:
Nicolas Gryman
2014-02-18 23:45:48 -05:00
committed by ngryman
parent 04c857a4e8
commit da34f1d58c
4 changed files with 34 additions and 0 deletions
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8
modules/highgui/src/grfmt_jpeg.cpp
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@@ -599,6 +599,7 @@ bool JpegEncoder::write( const Mat& img, const std::vector<int>& params )
int quality = 95;
int progressive = 0;
int optimize = 0;
for( size_t i = 0; i < params.size(); i += 2 )
{
@@ -612,6 +613,11 @@ bool JpegEncoder::write( const Mat& img, const std::vector<int>& params )
{
progressive = params[i+1];
}
if( params[i] == CV_IMWRITE_JPEG_OPTIMIZE )
{
optimize = params[i+1];
}
}
jpeg_set_defaults( &cinfo );
@@ -619,6 +625,8 @@ bool JpegEncoder::write( const Mat& img, const std::vector<int>& params )
TRUE /* limit to baseline-JPEG values */ );
if( progressive )
jpeg_simple_progression( &cinfo );
if( optimize )
cinfo.optimize_coding = TRUE;
jpeg_start_compress( &cinfo, TRUE );
if( channels > 1 )