potok/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2026-07-30 15:53:03 +04:00
Code Packages Releases Wiki Activity

GIF APNG WEBP AVIF revisions

Browse Source
This commit is contained in:
Suleyman TURKMEN
2025-01-03 14:25:31 +03:00
parent 0538e64b13
commit b4d0325666
10 changed files with 210 additions and 109 deletions
Download Patch File Download Diff File Expand all files Collapse all files
modules/imgcodecs/test/test_animation.cpp
+100
View File
@@ -99,6 +99,61 @@ static bool fillFrames(Animation& animation, bool hasAlpha, int n = 14)
return true;
}
#ifdef HAVE_IMGCODEC_GIF
TEST(Imgcodecs_Gif, imwriteanimation_rgba)
{
Animation s_animation, l_animation;
EXPECT_TRUE(fillFrames(s_animation, true));
s_animation.bgcolor = Scalar(0, 0, 0, 0); // TO DO not implemented yet.
// Create a temporary output filename for saving the animation.
string output = cv::tempfile(".gif");
// Write the animation to a .webp file and verify success.
EXPECT_TRUE(imwriteanimation(output, s_animation));
// Read the animation back and compare with the original.
EXPECT_TRUE(imreadanimation(output, l_animation));
size_t expected_frame_count = s_animation.frames.size();
// Verify that the number of frames matches the expected count.
EXPECT_EQ(expected_frame_count, imcount(output));
EXPECT_EQ(expected_frame_count, l_animation.frames.size());
// Check that the background color and loop count match between saved and loaded animations.
EXPECT_EQ(l_animation.bgcolor, s_animation.bgcolor); // written as BGRA order
EXPECT_EQ(l_animation.loop_count, s_animation.loop_count);
// Verify that the durations of frames match.
for (size_t i = 0; i < l_animation.frames.size() - 1; i++)
EXPECT_EQ(cvRound(s_animation.durations[i] / 10), cvRound(l_animation.durations[i] / 10));
EXPECT_TRUE(imreadanimation(output, l_animation, 5, 3));
EXPECT_EQ(expected_frame_count + 3, l_animation.frames.size());
EXPECT_EQ(l_animation.frames.size(), l_animation.durations.size());
EXPECT_EQ(0, cvtest::norm(l_animation.frames[5], l_animation.frames[16], NORM_INF));
EXPECT_EQ(0, cvtest::norm(l_animation.frames[6], l_animation.frames[17], NORM_INF));
EXPECT_EQ(0, cvtest::norm(l_animation.frames[7], l_animation.frames[18], NORM_INF));
// Verify whether the imread function successfully loads the first frame
Mat frame = imread(output, IMREAD_UNCHANGED);
EXPECT_EQ(0, cvtest::norm(l_animation.frames[0], frame, NORM_INF));
std::vector<uchar> buf;
readFileBytes(output, buf);
vector<Mat> webp_frames;
EXPECT_TRUE(imdecodemulti(buf, IMREAD_UNCHANGED, webp_frames));
EXPECT_EQ(expected_frame_count, webp_frames.size());
// Clean up by removing the temporary file.
EXPECT_EQ(0, remove(output.c_str()));
}
#endif // HAVE_IMGCODEC_GIF
#ifdef HAVE_WEBP
TEST(Imgcodecs_WebP, imwriteanimation_rgba)
@@ -305,6 +360,51 @@ TEST(Imgcodecs_APNG, imwriteanimation_rgba)
EXPECT_EQ(0, remove(output.c_str()));
}
TEST(Imgcodecs_APNG, imwriteanimation_rgba16u)
{
Animation s_animation, l_animation;
EXPECT_TRUE(fillFrames(s_animation, true));
for (size_t i = 0; i < s_animation.frames.size(); i++)
{
s_animation.frames[i].convertTo(s_animation.frames[i], CV_16U, 255);
}
// Create a temporary output filename for saving the animation.
string output = cv::tempfile(".png");
// Write the animation to a .png file and verify success.
EXPECT_TRUE(imwriteanimation(output, s_animation));
// Read the animation back and compare with the original.
EXPECT_TRUE(imreadanimation(output, l_animation));
size_t expected_frame_count = s_animation.frames.size() - 2;
// Verify that the number of frames matches the expected count.
EXPECT_EQ(expected_frame_count, imcount(output));
EXPECT_EQ(expected_frame_count, l_animation.frames.size());
std::vector<uchar> buf;
readFileBytes(output, buf);
vector<Mat> apng_frames;
EXPECT_TRUE(imdecodemulti(buf, IMREAD_UNCHANGED, apng_frames));
EXPECT_EQ(expected_frame_count, apng_frames.size());
apng_frames.clear();
// Test saving the animation frames as individual still images.
EXPECT_TRUE(imwrite(output, s_animation.frames));
// Read back the still images into a vector of Mats.
EXPECT_TRUE(imreadmulti(output, apng_frames));
// Expect all frames written as multi-page image
EXPECT_EQ(expected_frame_count, apng_frames.size());
// Clean up by removing the temporary file.
EXPECT_EQ(0, remove(output.c_str()));
}
TEST(Imgcodecs_APNG, imwriteanimation_rgb)
{
Animation s_animation, l_animation;