How to convert apng into webp?

[FurkanGozukara]

I have tried like this but apng animation is lost

Also I am looking for settings to lossless yet maximum compression. I don't care about CPU time speed etc. I need lossless and maximum compression. how to achieve that?

So I have a lot of PNG files and some APNG files

I will turn all of them into WEBP files

Yet I still want to keep APNG animation as well

Here example apng to test : https://static.pokemonpets.com/images/npcTrainers/trainer15125down.png

         using (var image = new MagickImage(@"path\Debug\a.png"))
            {
                image.Quality = 100;
                image.Settings.SetDefine(MagickFormat.WebP, "lossless", true);
                image.Settings.SetDefine(MagickFormat.WebP, "method", "6");
                image.Write("a.webp");
            }

[dlemstra]

If you want to read an image that contains multiple frames you will need to use the MagickImageCollection instead:

using (var images = new MagickImageCollection(@"path\Debug\a.png"))
{
    var defines = new WebPWriteDefines
    {
        Lossless = true,
        Method = 6,
    };

    images.Write("a.webp", defines);
}

And if you want to read an animated PNG file you will need to have ffmpeg.exe in your %PATH%. This is required to read an animated PNG fil.e

[FurkanGozukara]

@dlemstra thank you very much. can you write an example?

[dlemstra]

Sure, you can do this:

var readDefines = new VideoReadDefines(MagickFormat.APng)
{
    VideoSync = VideoSync.Vfr
};

FileInfo img_apng = new FileInfo(srWorkingDirectory + @"\test\trainer15202down.png");
using (var images = new MagickImageCollection(img_apng, readDefines))
{
}

[FurkanGozukara]

@dlemstra awesome ty very much. 1 more question, how can I get complexity of an image? so that I can apply different filtering. I am sure there is no universal complexity but If I can get accurate relative complexity of images, I can evaluate and set filters. Can you show me how to get an image complexity?

[FurkanGozukara]

@dlemstra a command like this how to execute with magick net? magick dragon.png -alpha off -statistic StandardDeviation 5x5 -fill White +opaque Black -format "%[fx:mean]\n

[dlemstra]

Can you please open a new question for that instead? Your question is not related to this discussion.