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add test (needs updated opencv_extra repo)

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This commit is contained in:
Matti Picus
2014-02-20 22:10:22 +02:00
parent 64fd54ffb4
commit 46d128e073
1 changed files with 42 additions and 0 deletions
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42
modules/highgui/test/test_grfmt.cpp
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@@ -419,4 +419,46 @@ TEST(Highgui_Tiff, decode_tile16384x16384)
remove(file3.c_str());
remove(file4.c_str());
}
class CV_GrfmtReadTifTiledWithNotFullTiles: public cvtest::BaseTest
{
public:
void run(int)
{
try
{
/* see issue #3472 - dealing with tiled images where the tile size is
* not a multiple of image size.
* The tiled images were created with 'convert' from ImageMagick,
* using the command 'convert <input> -define tiff:tile-geometry=128x128 -depth [8|16] <output>
* Note that the conversion to 16 bits expands the range from 0-255 to 0-255*255,
* so the test converts back but rounding errors cause small differences.
*/
cv::Mat img = imread(string(ts->get_data_path()) + "readwrite/non_tiled.tif",-1);
if (img.empty()) ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_TEST_DATA);
ASSERT_TRUE(img.channels() == 3);
cv::Mat tiled8 = imread(string(ts->get_data_path()) + "readwrite/tiled_8.tif", -1);
if (tiled8.empty()) ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_TEST_DATA);
ASSERT_PRED_FORMAT2(cvtest::MatComparator(0, 0), img, tiled8);
cv::Mat tiled16 = imread(string(ts->get_data_path()) + "readwrite/tiled_16.tif", -1);
if (tiled16.empty()) ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_TEST_DATA);
ASSERT_TRUE(tiled16.elemSize() == 6);
tiled16.convertTo(tiled8, CV_8UC3, 1./256.);
ASSERT_PRED_FORMAT2(cvtest::MatComparator(2, 0), img, tiled8);
// What about 32, 64 bit?
}
catch(...)
{
ts->set_failed_test_info(cvtest::TS::FAIL_EXCEPTION);
}
ts->set_failed_test_info(cvtest::TS::OK);
}
};
TEST(Highgui_Tiff, decode_tile_remainder)
{
CV_GrfmtReadTifTiledWithNotFullTiles test; test.safe_run();
}
#endif