potok/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2026-07-30 07:43:03 +04:00
Code Packages Releases Wiki Activity

Enable PNG exif orientation test

Browse Source
This commit is contained in:
Suleyman TURKMEN
2024-09-24 02:17:36 +03:00
parent 450e741f8d
commit 48a48fe11c
6 changed files with 155 additions and 229 deletions
Download Patch File Download Diff File Expand all files Collapse all files
modules/imgcodecs/test/test_png.cpp
-94
View File
@@ -109,100 +109,6 @@ TEST(Imgcodecs_Png, read_color_palette_with_alpha)
EXPECT_EQ(img.at<Vec3b>(0, 1), Vec3b(255, 0, 0));
}
/**
* Test for check whether reading exif orientation tag was processed successfully or not
* The test info is the set of 8 images named testExifRotate_{1 to 8}.png
* The test image is the square 10x10 points divided by four sub-squares:
* (R corresponds to Red, G to Green, B to Blue, W to white)
* --------- ---------
* | R | G | | G | R |
* |-------| - (tag 1) |-------| - (tag 2)
* | B | W | | W | B |
* --------- ---------
*
* --------- ---------
* | W | B | | B | W |
* |-------| - (tag 3) |-------| - (tag 4)
* | G | R | | R | G |
* --------- ---------
*
* --------- ---------
* | R | B | | G | W |
* |-------| - (tag 5) |-------| - (tag 6)
* | G | W | | R | B |
* --------- ---------
*
* --------- ---------
* | W | G | | B | R |
* |-------| - (tag 7) |-------| - (tag 8)
* | B | R | | W | G |
* --------- ---------
*
*
* Every image contains exif field with orientation tag (0x112)
* After reading each image and applying the orientation tag,
* the resulting image should be:
* ---------
* | R | G |
* |-------|
* | B | W |
* ---------
*
*/
typedef testing::TestWithParam<string> Imgcodecs_PNG_Exif;
// Solution to issue 16579: PNG read doesn't support Exif orientation data
#ifdef OPENCV_IMGCODECS_PNG_WITH_EXIF
TEST_P(Imgcodecs_PNG_Exif, exif_orientation)
#else
TEST_P(Imgcodecs_PNG_Exif, DISABLED_exif_orientation)
#endif
{
const string root = cvtest::TS::ptr()->get_data_path();
const string filename = root + GetParam();
const int colorThresholdHigh = 250;
const int colorThresholdLow = 5;
Mat m_img = imread(filename);
ASSERT_FALSE(m_img.empty());
Vec3b vec;
//Checking the first quadrant (with supposed red)
vec = m_img.at<Vec3b>(2, 2); //some point inside the square
EXPECT_LE(vec.val[0], colorThresholdLow);
EXPECT_LE(vec.val[1], colorThresholdLow);
EXPECT_GE(vec.val[2], colorThresholdHigh);
//Checking the second quadrant (with supposed green)
vec = m_img.at<Vec3b>(2, 7); //some point inside the square
EXPECT_LE(vec.val[0], colorThresholdLow);
EXPECT_GE(vec.val[1], colorThresholdHigh);
EXPECT_LE(vec.val[2], colorThresholdLow);
//Checking the third quadrant (with supposed blue)
vec = m_img.at<Vec3b>(7, 2); //some point inside the square
EXPECT_GE(vec.val[0], colorThresholdHigh);
EXPECT_LE(vec.val[1], colorThresholdLow);
EXPECT_LE(vec.val[2], colorThresholdLow);
}
const string exif_files[] =
{
"readwrite/testExifOrientation_1.png",
"readwrite/testExifOrientation_2.png",
"readwrite/testExifOrientation_3.png",
"readwrite/testExifOrientation_4.png",
"readwrite/testExifOrientation_5.png",
"readwrite/testExifOrientation_6.png",
"readwrite/testExifOrientation_7.png",
"readwrite/testExifOrientation_8.png"
};
INSTANTIATE_TEST_CASE_P(ExifFiles, Imgcodecs_PNG_Exif,
testing::ValuesIn(exif_files));
typedef testing::TestWithParam<string> Imgcodecs_Png_PngSuite;
TEST_P(Imgcodecs_Png_PngSuite, decode)