--- /dev/null
+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+// By downloading, copying, installing or using the software you agree to this license.
+// If you do not agree to this license, do not download, install,
+// copy or use the software.
+//
+//
+// License Agreement
+// For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+// * Redistribution's of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+//
+// * Redistribution's in binary form must reproduce the above copyright notice,
+// this list of conditions and the following disclaimer in the documentation
+// and/or other materials provided with the distribution.
+//
+// * The name of the copyright holders may not be used to endorse or promote products
+// derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "_highgui.h"
+
+#ifdef HAVE_JASPER
+
+#include "grfmt_jpeg2000.h"
+
+#ifdef WIN32
+#define JAS_WIN_MSVC_BUILD 1
+#ifdef __GNUC__
+#define HAVE_STDINT_H 1
+#endif
+#endif
+
+#undef PACKAGE
+#undef PACKAGE_BUGREPORT
+#undef PACKAGE_NAME
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+#undef PACKAGE_VERSION
+#undef VERSION
+
+#include <jasper/jasper.h>
+// FIXME bad hack
+#undef uchar
+#undef ulong
+
+namespace cv
+{
+
+struct JasperInitializer
+{
+ JasperInitializer() { jas_init(); }
+ ~JasperInitializer() { jas_cleanup(); }
+};
+
+static JasperInitializer initialize_jasper;
+
+
+/////////////////////// Jpeg2KDecoder ///////////////////
+
+Jpeg2KDecoder::Jpeg2KDecoder()
+{
+ m_signature = '\0' + string() + '\0' + string() + '\0' + string("\x0cjP \r\n\x87\n");
+ m_stream = 0;
+ m_image = 0;
+}
+
+
+Jpeg2KDecoder::~Jpeg2KDecoder()
+{
+}
+
+ImageDecoder Jpeg2KDecoder::newDecoder() const
+{
+ return new Jpeg2KDecoder;
+}
+
+void Jpeg2KDecoder::close()
+{
+ if( m_stream )
+ {
+ jas_stream_close( (jas_stream_t*)m_stream );
+ m_stream = 0;
+ }
+
+ if( m_image )
+ {
+ jas_image_destroy( (jas_image_t*)m_image );
+ m_image = 0;
+ }
+}
+
+
+bool Jpeg2KDecoder::readHeader()
+{
+ bool result = false;
+
+ close();
+ jas_stream_t* stream = jas_stream_fopen( m_filename.c_str(), "rb" );
+ m_stream = stream;
+
+ if( stream )
+ {
+ jas_image_t* image = jas_image_decode( stream, -1, 0 );
+ m_image = image;
+ if( image ) {
+ m_width = jas_image_width( image );
+ m_height = jas_image_height( image );
+
+ int cntcmpts = 0; // count the known components
+ int numcmpts = jas_image_numcmpts( image );
+ int depth = 0;
+ for( int i = 0; i < numcmpts; i++ )
+ {
+ int depth_i = jas_image_cmptprec( image, i );
+ depth = MAX(depth, depth_i);
+ if( jas_image_cmpttype( image, i ) > 2 )
+ continue;
+ cntcmpts++;
+ }
+
+ if( cntcmpts )
+ {
+ m_type = CV_MAKETYPE(depth <= 8 ? CV_8U : CV_16U, cntcmpts > 1 ? 3 : 1);
+ result = true;
+ }
+ }
+ }
+
+ if( !result )
+ close();
+
+ return result;
+}
+
+
+bool Jpeg2KDecoder::readData( Mat& img )
+{
+ bool result = false;
+ int color = img.channels() > 1;
+ uchar* data = img.data;
+ int step = img.step;
+ jas_stream_t* stream = (jas_stream_t*)m_stream;
+ jas_image_t* image = (jas_image_t*)m_image;
+
+ if( stream && image )
+ {
+ bool convert;
+ int colorspace;
+ if( color )
+ {
+ convert = (jas_image_clrspc( image ) != JAS_CLRSPC_SRGB);
+ colorspace = JAS_CLRSPC_SRGB;
+ }
+ else
+ {
+ convert = (jas_clrspc_fam( jas_image_clrspc( image ) ) != JAS_CLRSPC_FAM_GRAY);
+ colorspace = JAS_CLRSPC_SGRAY; // TODO GENGRAY or SGRAY?
+ }
+
+ // convert to the desired colorspace
+ if( convert )
+ {
+ jas_cmprof_t *clrprof = jas_cmprof_createfromclrspc( colorspace );
+ if( clrprof )
+ {
+ jas_image_t *_img = jas_image_chclrspc( image, clrprof, JAS_CMXFORM_INTENT_RELCLR );
+ if( _img )
+ {
+ jas_image_destroy( image );
+ m_image = image = _img;
+ result = true;
+ }
+ else
+ fprintf(stderr, "JPEG 2000 LOADER ERROR: cannot convert colorspace\n");
+ jas_cmprof_destroy( clrprof );
+ }
+ else
+ fprintf(stderr, "JPEG 2000 LOADER ERROR: unable to create colorspace\n");
+ }
+ else
+ result = true;
+
+ if( result )
+ {
+ int ncmpts;
+ int cmptlut[3];
+ if( color )
+ {
+ cmptlut[0] = jas_image_getcmptbytype( image, JAS_IMAGE_CT_RGB_B );
+ cmptlut[1] = jas_image_getcmptbytype( image, JAS_IMAGE_CT_RGB_G );
+ cmptlut[2] = jas_image_getcmptbytype( image, JAS_IMAGE_CT_RGB_R );
+ if( cmptlut[0] < 0 || cmptlut[1] < 0 || cmptlut[0] < 0 )
+ result = false;
+ ncmpts = 3;
+ }
+ else
+ {
+ cmptlut[0] = jas_image_getcmptbytype( image, JAS_IMAGE_CT_GRAY_Y );
+ if( cmptlut[0] < 0 )
+ result = false;
+ ncmpts = 1;
+ }
+
+ if( result )
+ {
+ for( int i = 0; i < ncmpts; i++ )
+ {
+ int maxval = 1 << jas_image_cmptprec( image, cmptlut[i] );
+ int offset = jas_image_cmptsgnd( image, cmptlut[i] ) ? maxval / 2 : 0;
+
+ int yend = jas_image_cmptbry( image, cmptlut[i] );
+ int ystep = jas_image_cmptvstep( image, cmptlut[i] );
+ int xend = jas_image_cmptbrx( image, cmptlut[i] );
+ int xstep = jas_image_cmpthstep( image, cmptlut[i] );
+
+ jas_matrix_t *buffer = jas_matrix_create( yend / ystep, xend / xstep );
+ if( buffer )
+ {
+ if( !jas_image_readcmpt( image, cmptlut[i], 0, 0, xend / xstep, yend / ystep, buffer ))
+ {
+ if( img.depth() == CV_8U )
+ result = readComponent8u( data + i, buffer, step, cmptlut[i], maxval, offset, ncmpts );
+ else
+ result = readComponent16u( ((unsigned short *)data) + i, buffer, step / 2, cmptlut[i], maxval, offset, ncmpts );
+ if( !result )
+ {
+ i = ncmpts;
+ result = false;
+ }
+ }
+ jas_matrix_destroy( buffer );
+ }
+ }
+ }
+ }
+ else
+ fprintf(stderr, "JPEG2000 LOADER ERROR: colorspace conversion failed\n" );
+ }
+
+ close();
+
+ return result;
+}
+
+
+bool Jpeg2KDecoder::readComponent8u( uchar *data, void *_buffer,
+ int step, int cmpt,
+ int maxval, int offset, int ncmpts )
+{
+ jas_matrix_t* buffer = (jas_matrix_t*)_buffer;
+ jas_image_t* image = (jas_image_t*)m_image;
+ int xstart = jas_image_cmpttlx( image, cmpt );
+ int xend = jas_image_cmptbrx( image, cmpt );
+ int xstep = jas_image_cmpthstep( image, cmpt );
+ int xoffset = jas_image_tlx( image );
+ int ystart = jas_image_cmpttly( image, cmpt );
+ int yend = jas_image_cmptbry( image, cmpt );
+ int ystep = jas_image_cmptvstep( image, cmpt );
+ int yoffset = jas_image_tly( image );
+ int x, y, x1, y1, j;
+ int rshift = cvRound(std::log(maxval/256.)/std::log(2.));
+ int lshift = MAX(0, -rshift);
+ rshift = MAX(0, rshift);
+ int delta = (rshift > 0 ? 1 << (rshift - 1) : 0) + offset;
+
+ for( y = 0; y < yend - ystart; )
+ {
+ jas_seqent_t* pix_row = &jas_matrix_get( buffer, y / ystep, 0 );
+ uchar* dst = data + (y - yoffset) * step - xoffset;
+
+ if( xstep == 1 )
+ {
+ if( maxval == 256 && offset == 0 )
+ for( x = 0; x < xend - xstart; x++ )
+ {
+ int pix = pix_row[x];
+ dst[x*ncmpts] = CV_CAST_8U(pix);
+ }
+ else
+ for( x = 0; x < xend - xstart; x++ )
+ {
+ int pix = ((pix_row[x] + delta) >> rshift) << lshift;
+ dst[x*ncmpts] = CV_CAST_8U(pix);
+ }
+ }
+ else if( xstep == 2 && offset == 0 )
+ for( x = 0, j = 0; x < xend - xstart; x += 2, j++ )
+ {
+ int pix = ((pix_row[j] + delta) >> rshift) << lshift;
+ dst[x*ncmpts] = dst[(x+1)*ncmpts] = CV_CAST_8U(pix);
+ }
+ else
+ for( x = 0, j = 0; x < xend - xstart; j++ )
+ {
+ int pix = ((pix_row[j] + delta) >> rshift) << lshift;
+ pix = CV_CAST_8U(pix);
+ for( x1 = x + xstep; x < x1; x++ )
+ dst[x*ncmpts] = (uchar)pix;
+ }
+ y1 = y + ystep;
+ for( ++y; y < y1; y++, dst += step )
+ for( x = 0; x < xend - xstart; x++ )
+ dst[x*ncmpts + step] = dst[x*ncmpts];
+ }
+
+ return true;
+}
+
+
+bool Jpeg2KDecoder::readComponent16u( unsigned short *data, void *_buffer,
+ int step, int cmpt,
+ int maxval, int offset, int ncmpts )
+{
+ jas_matrix_t* buffer = (jas_matrix_t*)_buffer;
+ jas_image_t* image = (jas_image_t*)m_image;
+ int xstart = jas_image_cmpttlx( image, cmpt );
+ int xend = jas_image_cmptbrx( image, cmpt );
+ int xstep = jas_image_cmpthstep( image, cmpt );
+ int xoffset = jas_image_tlx( image );
+ int ystart = jas_image_cmpttly( image, cmpt );
+ int yend = jas_image_cmptbry( image, cmpt );
+ int ystep = jas_image_cmptvstep( image, cmpt );
+ int yoffset = jas_image_tly( image );
+ int x, y, x1, y1, j;
+ int rshift = cvRound(std::log(maxval/65536.)/std::log(2.));
+ int lshift = MAX(0, -rshift);
+ rshift = MAX(0, rshift);
+ int delta = (rshift > 0 ? 1 << (rshift - 1) : 0) + offset;
+
+ for( y = 0; y < yend - ystart; )
+ {
+ jas_seqent_t* pix_row = &jas_matrix_get( buffer, y / ystep, 0 );
+ ushort* dst = data + (y - yoffset) * step - xoffset;
+
+ if( xstep == 1 )
+ {
+ if( maxval == 65536 && offset == 0 )
+ for( x = 0; x < xend - xstart; x++ )
+ {
+ int pix = pix_row[x];
+ dst[x*ncmpts] = CV_CAST_16U(pix);
+ }
+ else
+ for( x = 0; x < xend - xstart; x++ )
+ {
+ int pix = ((pix_row[x] + delta) >> rshift) << lshift;
+ dst[x*ncmpts] = CV_CAST_16U(pix);
+ }
+ }
+ else if( xstep == 2 && offset == 0 )
+ for( x = 0, j = 0; x < xend - xstart; x += 2, j++ )
+ {
+ int pix = ((pix_row[j] + delta) >> rshift) << lshift;
+ dst[x*ncmpts] = dst[(x+1)*ncmpts] = CV_CAST_16U(pix);
+ }
+ else
+ for( x = 0, j = 0; x < xend - xstart; j++ )
+ {
+ int pix = ((pix_row[j] + delta) >> rshift) << lshift;
+ pix = CV_CAST_16U(pix);
+ for( x1 = x + xstep; x < x1; x++ )
+ dst[x*ncmpts] = (ushort)pix;
+ }
+ y1 = y + ystep;
+ for( ++y; y < y1; y++, dst += step )
+ for( x = 0; x < xend - xstart; x++ )
+ dst[x*ncmpts + step] = dst[x*ncmpts];
+ }
+
+ return true;
+}
+
+
+/////////////////////// Jpeg2KEncoder ///////////////////
+
+
+Jpeg2KEncoder::Jpeg2KEncoder()
+{
+ m_description = "JPEG-2000 files (*.jp2)";
+}
+
+
+Jpeg2KEncoder::~Jpeg2KEncoder()
+{
+}
+
+ImageEncoder Jpeg2KEncoder::newEncoder() const
+{
+ return new Jpeg2KEncoder;
+}
+
+bool Jpeg2KEncoder::isFormatSupported( int depth ) const
+{
+ return depth == CV_8U || depth == CV_16U;
+}
+
+
+bool Jpeg2KEncoder::write( const Mat& _img, const vector<int>& )
+{
+ int width = _img.cols, height = _img.rows;
+ int depth = _img.depth(), channels = _img.channels();
+ depth = depth == CV_8U ? 8 : 16;
+
+ if( channels > 3 || channels < 1 )
+ return false;
+
+ jas_image_cmptparm_t component_info[3];
+ for( int i = 0; i < channels; i++ )
+ {
+ component_info[i].tlx = 0;
+ component_info[i].tly = 0;
+ component_info[i].hstep = 1;
+ component_info[i].vstep = 1;
+ component_info[i].width = width;
+ component_info[i].height = height;
+ component_info[i].prec = depth;
+ component_info[i].sgnd = 0;
+ }
+ jas_image_t *img = jas_image_create( channels, component_info, (channels == 1) ? JAS_CLRSPC_SGRAY : JAS_CLRSPC_SRGB );
+ if( !img )
+ return false;
+
+ if(channels == 1)
+ jas_image_setcmpttype( img, 0, JAS_IMAGE_CT_GRAY_Y );
+ else
+ {
+ jas_image_setcmpttype( img, 0, JAS_IMAGE_CT_RGB_B );
+ jas_image_setcmpttype( img, 1, JAS_IMAGE_CT_RGB_G );
+ jas_image_setcmpttype( img, 2, JAS_IMAGE_CT_RGB_R );
+ }
+
+ bool result;
+ if( depth == 8 )
+ result = writeComponent8u( img, _img );
+ else
+ result = writeComponent16u( img, _img );
+ if( result )
+ {
+ jas_stream_t *stream = jas_stream_fopen( m_filename.c_str(), "wb" );
+ if( stream )
+ {
+ result = !jas_image_encode( img, stream, jas_image_strtofmt( (char*)"jp2" ), (char*)"" );
+
+ jas_stream_close( stream );
+ }
+
+ }
+ jas_image_destroy( img );
+
+ return result;
+}
+
+
+bool Jpeg2KEncoder::writeComponent8u( void *__img, const Mat& _img )
+{
+ jas_image_t* img = (jas_image_t*)__img;
+ int w = _img.cols, h = _img.rows, ncmpts = _img.channels();
+ jas_matrix_t *row = jas_matrix_create( 1, w );
+ if(!row)
+ return false;
+
+ for( int y = 0; y < h; y++ )
+ {
+ uchar* data = _img.data + _img.step*y;
+ for( int i = 0; i < ncmpts; i++ )
+ {
+ for( int x = 0; x < w; x++)
+ jas_matrix_setv( row, x, data[x * ncmpts + i] );
+ jas_image_writecmpt( img, i, 0, y, w, 1, row );
+ }
+ }
+
+ jas_matrix_destroy( row );
+ return true;
+}
+
+
+bool Jpeg2KEncoder::writeComponent16u( void *__img, const Mat& _img )
+{
+ jas_image_t* img = (jas_image_t*)__img;
+ int w = _img.cols, h = _img.rows, ncmpts = _img.channels();
+ jas_matrix_t *row = jas_matrix_create( 1, w );
+ if(!row)
+ return false;
+
+ for( int y = 0; y < h; y++ )
+ {
+ uchar* data = _img.data + _img.step*y;
+ for( int i = 0; i < ncmpts; i++ )
+ {
+ for( int x = 0; x < w; x++)
+ jas_matrix_setv( row, x, data[x * ncmpts + i] );
+ jas_image_writecmpt( img, i, 0, y, w, 1, row );
+ }
+ }
+
+ jas_matrix_destroy( row );
+
+ return true;
+}
+
+}
+
+#endif
+
+/* End of file. */
projects / opencv / blobdiff