openjpeg/tests/nonregression
Even Rouault 3cd1305596
Irreversible compression/decompression DWT: use 1/K constant as per standard
The previous constant opj_c13318 was mysteriously equal to 2/K , and in
the DWT, we had to divide K and opj_c13318 by 2... The issue was that the
band->stepsize computation in tcd.c didn't take into account the log2gain of
the band.

The effect of this change is expected to be mostly equivalent to the previous
situation, except some difference in rounding. But it leads to a dramatic
reduction of the mean square error and peak error in the irreversible encoding
of issue141.tif !
2020-05-20 20:31:28 +02:00
..
CMakeLists.txt Testing: revise testing of lossy encoding by comparing PEAK and MSE with original image 2020-05-20 20:31:28 +02:00
checkmd5refs.cmake tests: add alternate checksums for libtiff 4.1 2020-02-07 22:05:55 +01:00
md5refs.txt tests: add alternate checksums for libtiff 4.1 2020-02-07 22:05:55 +01:00
test_suite.ctest.in Irreversible compression/decompression DWT: use 1/K constant as per standard 2020-05-20 20:31:28 +02:00