Online Make Photo Animation Free | Image to Animation APNG

animate-photos.cs

const int AnimationDuration = 1000; // 1 s
const int FrameDuration = 70; // 70 ms
using (RasterImage sourceImage = (RasterImage)Aspose.Imaging.Image.Load(dataDir + "not_animated.png"))
{
    ApngOptions createOptions = new ApngOptions
    {
        Source = new FileCreateSource("raster_animation.png", false),
        DefaultFrameTime = (uint)FrameDuration,
        ColorType = PngColorType.TruecolorWithAlpha,
    };

    using (ApngImage apngImage = (ApngImage)Aspose.Imaging.Image.Create(
        createOptions,
        sourceImage.Width,
        sourceImage.Height))
    {
        int numOfFrames = AnimationDuration / FrameDuration;
        int numOfFrames2 = numOfFrames / 2;

        apngImage.RemoveAllFrames();

        // add first frame
        apngImage.AddFrame(sourceImage, FrameDuration);

        // add intermediate frames
        for (int frameIndex = 1; frameIndex < numOfFrames - 1; ++frameIndex)
        {
            apngImage.AddFrame(sourceImage, FrameDuration);
            ApngFrame lastFrame = (ApngFrame)apngImage.Pages[apngImage.PageCount - 1];
            float gamma = frameIndex >= numOfFrames2 ? numOfFrames - frameIndex - 1 : frameIndex;
            lastFrame.AdjustGamma(gamma);
        }

        // add last frame
        apngImage.AddFrame(sourceImage, FrameDuration);

        apngImage.Save();
    }
}

animated-png-to-gif.cs

using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dataDir + "Animated PNG.png"))
{
    // Checking the type of loaded image
    System.Diagnostics.Debug.Assert(image is ApngImage);
                
    // Save to the same format
    image.Save(dataDir + "same_format.png");
                
    // Export to the other animated format
    image.Save(dataDir + "animated.gif", new GifOptions());
}