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fix distance test for lossless compression

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This commit is contained in:
Kumataro 2025-05-31 09:30:46 +09:00
parent abc2a3cbc7
commit f143a8b0d2
1 changed files with 8 additions and 8 deletions
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16
modules/imgcodecs/test/test_jpegxl.cpp
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@ -18,8 +18,8 @@ TEST_P(Imgcodecs_JpegXL_MatType, write_read)
const int distanceParam = get<1>(GetParam());
cv::Scalar col;
// Jpeg XL is lossy compression.
// There may be small differences in decoding results by environments.
// Jpeg XL supports lossy and lossless compressions.
// Lossy compression may be small differences in decoding results by environments.
double th;
switch( CV_MAT_DEPTH(matType) )
@ -40,7 +40,7 @@ TEST_P(Imgcodecs_JpegXL_MatType, write_read)
}
// If increasing distanceParam, threshold should be increased.
th *= (distanceParam >= 25) ? 5 : ( distanceParam > 2 ) ? 3 : (distanceParam == 2) ? 2: 1;
th *= (distanceParam >= 25) ? 5 : (distanceParam > 2) ? 3 : distanceParam;
bool ret = false;
string tmp_fname = cv::tempfile(".jxl");
@ -65,8 +65,8 @@ TEST_P(Imgcodecs_JpegXL_MatType, encode_decode)
const int distanceParam = get<1>(GetParam());
cv::Scalar col;
// Jpeg XL is lossy compression.
// There may be small differences in decoding results by environments.
// Jpeg XL supports lossy and lossless compressions.
// Lossy compression may be small differences in decoding results by environments.
double th;
// If alpha=0, libjxl modify color channels(BGR). So do not set it.
@ -88,7 +88,7 @@ TEST_P(Imgcodecs_JpegXL_MatType, encode_decode)
}
// If increasing distanceParam, threshold should be increased.
th *= (distanceParam >= 25) ? 5 : ( distanceParam > 2 ) ? 3 : (distanceParam == 2) ? 2: 1;
th *= (distanceParam >= 25) ? 5 : (distanceParam > 2) ? 3 : distanceParam;
bool ret = false;
vector<uchar> buff;
@ -132,8 +132,8 @@ TEST_P(Imgcodecs_JpegXL_Effort_DecodingSpeed, encode_decode)
const int speed = get<1>(GetParam());
cv::Scalar col = cv::Scalar(124,76,42);
// Jpeg XL is lossy compression.
// There may be small differences in decoding results by environments.
// Jpeg XL supports lossy and lossless compression.
// Lossy compression may be small differences in decoding results by environments.
double th = 3; // = 255 / 100 (1%);
bool ret = false;