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samples/cpp/tutorial_code/imgcodecs/animations.cpp

An example to show usage of cv::imreadanimation and cv::imwriteanimation functions. Check the corresponding tutorial for more details

#include <iostream>
using namespace cv;
int main( int argc, const char** argv )
{
std::string filename = argc > 1 ? argv[1] : "animated_image.webp";
if (argc == 1)
{
Animation animation_to_save;
Mat image(128, 256, CV_8UC4, Scalar(150, 150, 150, 255));
int duration = 200;
for (int i = 0; i < 10; ++i) {
animation_to_save.frames.push_back(image.clone());
putText(animation_to_save.frames[i], format("Frame %d", i), Point(30, 80), FONT_HERSHEY_SIMPLEX, 1.5, Scalar(255, 100, 0, 255), 2);
animation_to_save.durations.push_back(duration);
}
imwriteanimation("animated_image.webp", animation_to_save, { IMWRITE_WEBP_QUALITY, 100 });
}
Animation animation;
bool success = imreadanimation(filename, animation);
if (!success) {
std::cerr << "Failed to load animation frames\n";
return -1;
}
while (true)
for (size_t i = 0; i < animation.frames.size(); ++i) {
imshow("Animation", animation.frames[i]);
int key_code = waitKey(animation.durations[i]); // Delay between frames
if (key_code == 27)
exit(0);
}
return 0;
}
n-dimensional dense array class
Definition mat.hpp:829
CV_NODISCARD_STD Mat clone() const
Creates a full copy of the array and the underlying data.
#define CV_8UC4
Definition interface.h:91
int main(int argc, char *argv[])
Definition highgui_qt.cpp:3
Definition core.hpp:107
Represents an animation with multiple frames. The Animation struct is designed to store and manage da...
Definition imgcodecs.hpp:248
CV_PROP_RW std::vector< Mat > frames
Vector of frames, where each Mat represents a single frame.
Definition imgcodecs.hpp:256
CV_PROP_RW std::vector< int > durations
Duration for each frame in milliseconds.
Definition imgcodecs.hpp:254