Openize.HEIC Code Snippets

heic-to-argb32-pixels.cs

// Decode .heic file to int array with Argb32 data
using (var fs = new FileStream("filename.heic", FileMode.Open))
{
    HeicImage image = HeicImage.Load(fs);
    int[] pixels = image.GetInt32Array(Heic.Decoder.PixelFormat.Argb32);
}

heic-to-jpg.cs

using (var fs = new FileStream("filename.heic", FileMode.Open))
{
    HeicImage image = HeicImage.Load(fs);
     
    var pixels = image.GetByteArray(Heic.Decoder.PixelFormat.Bgra32);
    var width = (int)image.Width;
    var height = (int)image.Height;
     
    var wbitmap = new WriteableBitmap(width, height, 72, 72, PixelFormats.Bgra32, null);
    var rect = new Int32Rect(0, 0, width, height);
    wbitmap.WritePixels(rect, pixels, 4 * width, 0);
    
    using (FileStream saveStream = new FileStream("output.jpg", FileMode.OpenOrCreate))
    {
        JpegBitmapEncoder encoder = new JpegBitmapEncoder();
        encoder.Frames.Add(BitmapFrame.Create(wbitmap));
        encoder.Save(saveStream);
    }
}

heic-to-png.cs

using (var fs = new FileStream("filename.heic", FileMode.Open))
{
    HeicImage image = HeicImage.Load(fs);
     
    var pixels = image.GetByteArray(Heic.Decoder.PixelFormat.Bgra32);
    var width = (int)image.Width;
    var height = (int)image.Height;
     
    var wbitmap = new WriteableBitmap(width, height, 72, 72, PixelFormats.Bgra32, null);
    var rect = new Int32Rect(0, 0, width, height);
    wbitmap.WritePixels(rect, pixels, 4 * width, 0);
    
    using (FileStream saveStream = new FileStream("output.png", FileMode.OpenOrCreate))
    {
        PngBitmapEncoder encoder = new PngBitmapEncoder();
        encoder.Frames.Add(BitmapFrame.Create(wbitmap));
        encoder.Save(saveStream);
    }
}