mirror/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2024-11-28 05:06:29 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #361 from taka-no-me:tiff_big_tile

Browse Source
This commit is contained in:
Andrey Kamaev 2013-01-30 14:40:50 +04:00 committed by OpenCV Buildbot
commit ae7460440e
2 changed files with 51 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
modules/highgui/src/grfmt_tiff.cpp
View File

@ -168,7 +168,6 @@ bool TiffDecoder::readData( Mat& img )
bool result = false;
bool color = img.channels() > 1;
uchar* data = img.data;
int step = (int)img.step;
if( img.depth() != CV_8U && img.depth() != CV_16U && img.depth() != CV_32F && img.depth() != CV_64F )
return false;
@ -211,14 +210,14 @@ bool TiffDecoder::readData( Mat& img )
if( tile_height0 <= 0 )
tile_height0 = m_height;
AutoBuffer<uchar> _buffer(tile_height0*tile_width0*8);
AutoBuffer<uchar> _buffer( size_t(8) * tile_height0*tile_width0);
uchar* buffer = _buffer;
ushort* buffer16 = (ushort*)buffer;
float* buffer32 = (float*)buffer;
double* buffer64 = (double*)buffer;
int tileidx = 0;
for( y = 0; y < m_height; y += tile_height0, data += step*tile_height0 )
for( y = 0; y < m_height; y += tile_height0, data += img.step*tile_height0 )
{
int tile_height = tile_height0;
@ -250,11 +249,11 @@ bool TiffDecoder::readData( Mat& img )
for( i = 0; i < tile_height; i++ )
if( color )
icvCvt_BGRA2BGR_8u_C4C3R( buffer + i*tile_width*4, 0,
data + x*3 + step*(tile_height - i - 1), 0,
data + x*3 + img.step*(tile_height - i - 1), 0,
cvSize(tile_width,1), 2 );
else
icvCvt_BGRA2Gray_8u_C4C1R( buffer + i*tile_width*4, 0,
data + x + step*(tile_height - i - 1), 0,
data + x + img.step*(tile_height - i - 1), 0,
cvSize(tile_width,1), 2 );
break;
}
@ -279,19 +278,19 @@ bool TiffDecoder::readData( Mat& img )
if( ncn == 1 )
{
icvCvt_Gray2BGR_16u_C1C3R(buffer16 + i*tile_width*ncn, 0,
(ushort*)(data + step*i) + x*3, 0,
(ushort*)(data + img.step*i) + x*3, 0,
cvSize(tile_width,1) );
}
else if( ncn == 3 )
{
icvCvt_RGB2BGR_16u_C3R(buffer16 + i*tile_width*ncn, 0,
(ushort*)(data + step*i) + x*3, 0,
(ushort*)(data + img.step*i) + x*3, 0,
cvSize(tile_width,1) );
}
else
{
icvCvt_BGRA2BGR_16u_C4C3R(buffer16 + i*tile_width*ncn, 0,
(ushort*)(data + step*i) + x*3, 0,
(ushort*)(data + img.step*i) + x*3, 0,
cvSize(tile_width,1), 2 );
}
}
@ -299,14 +298,14 @@ bool TiffDecoder::readData( Mat& img )
{
if( ncn == 1 )
{
memcpy((ushort*)(data + step*i)+x,
memcpy((ushort*)(data + img.step*i)+x,
buffer16 + i*tile_width*ncn,
tile_width*sizeof(buffer16[0]));
}
else
{
icvCvt_BGRA2Gray_16u_CnC1R(buffer16 + i*tile_width*ncn, 0,
(ushort*)(data + step*i) + x, 0,
(ushort*)(data + img.step*i) + x, 0,
cvSize(tile_width,1), ncn, 2 );
}
}
@ -332,13 +331,13 @@ bool TiffDecoder::readData( Mat& img )
{
if(dst_bpp == 32)
{
memcpy((float*)(data + step*i)+x,
memcpy((float*)(data + img.step*i)+x,
buffer32 + i*tile_width*ncn,
tile_width*sizeof(buffer32[0]));
}
else
{
memcpy((double*)(data + step*i)+x,
memcpy((double*)(data + img.step*i)+x,
buffer64 + i*tile_width*ncn,
tile_width*sizeof(buffer64[0]));
}
@ -402,7 +401,18 @@ void TiffEncoder::writeTag( WLByteStream& strm, TiffTag tag,
}
#ifdef HAVE_TIFF
bool TiffEncoder::writeLibTiff( const Mat& img, const vector<int>& /*params*/)
static void readParam(const vector<int>& params, int key, int& value)
{
for(size_t i = 0; i + 1 < params.size(); i += 2)
if(params[i] == key)
{
value = params[i+1];
break;
}
}
bool TiffEncoder::writeLibTiff( const Mat& img, const vector<int>& params)
{
int channels = img.channels();
int width = img.cols, height = img.rows;
@ -429,7 +439,9 @@ bool TiffEncoder::writeLibTiff( const Mat& img, const vector<int>& /*params*/)
const int bitsPerByte = 8;
size_t fileStep = (width * channels * bitsPerChannel) / bitsPerByte;
int rowsPerStrip = (int)((1 << 13)/fileStep);
readParam(params, TIFFTAG_ROWSPERSTRIP, rowsPerStrip);
if( rowsPerStrip < 1 )
rowsPerStrip = 1;
@ -450,6 +462,9 @@ bool TiffEncoder::writeLibTiff( const Mat& img, const vector<int>& /*params*/)
int compression = COMPRESSION_LZW;
int predictor = PREDICTOR_HORIZONTAL;
readParam(params, TIFFTAG_COMPRESSION, compression);
readParam(params, TIFFTAG_PREDICTOR, predictor);
int colorspace = channels > 1 ? PHOTOMETRIC_RGB : PHOTOMETRIC_MINISBLACK;
if ( !TIFFSetField(pTiffHandle, TIFFTAG_IMAGEWIDTH, width)
@ -469,7 +484,7 @@ bool TiffEncoder::writeLibTiff( const Mat& img, const vector<int>& /*params*/)
// row buffer, because TIFFWriteScanline modifies the original data!
size_t scanlineSize = TIFFScanlineSize(pTiffHandle);
AutoBuffer<uchar,1024> _buffer(scanlineSize+32);
AutoBuffer<uchar> _buffer(scanlineSize+32);
uchar* buffer = _buffer;
if (!buffer)
{
@ -577,9 +592,9 @@ bool TiffEncoder::write( const Mat& img, const vector<int>& /*params*/)
#endif*/
int directoryOffset = 0;
AutoBuffer<int,1024> stripOffsets(stripCount);
AutoBuffer<short,1024> stripCounts(stripCount);
AutoBuffer<uchar,1024> _buffer(fileStep+32);
AutoBuffer<int> stripOffsets(stripCount);
AutoBuffer<short> stripCounts(stripCount);
AutoBuffer<uchar> _buffer(fileStep+32);
uchar* buffer = _buffer;
int stripOffsetsOffset = 0;
int stripCountsOffset = 0;

19
modules/highgui/test/test_grfmt.cpp
View File

@ -291,3 +291,22 @@ TEST(Highgui_Jpeg, encode_empty)
ASSERT_THROW(cv::imencode(".jpg", img, jpegImg), cv::Exception);
}
#endif
#ifdef HAVE_TIFF
#include "tiff.h"
TEST(Highgui_Tiff, decode_tile16384x16384)
{
// see issue #2161
cv::Mat big(16384, 16384, CV_8UC1, cv::Scalar::all(0));
string file = cv::tempfile(".tiff");
std::vector<int> params;
params.push_back(TIFFTAG_ROWSPERSTRIP);
params.push_back(big.rows);
cv::imwrite(file, big, params);
big.release();
EXPECT_NO_THROW(cv::imread(file));
remove(file.c_str());
}
#endif