GifOptions.Interlaced

GifOptions.Interlaced property

True if image should be interlaced.

public bool Interlaced { get; set; }

Examples

This example shows how to save a BMP image to GIF format using various options.

[C#]

string dir = "c:\\temp\\";

using (Aspose.Imaging.Image bmpImage = new Aspose.Imaging.FileFormats.Bmp.BmpImage(1000, 1000))
{
    // Fill the entire image with the blue-yellow gradient.
    Aspose.Imaging.Brushes.LinearGradientBrush gradientBrush = new Aspose.Imaging.Brushes.LinearGradientBrush(
            new Aspose.Imaging.Point(0, 0),
            new Aspose.Imaging.Point(bmpImage.Width, bmpImage.Height),
            Aspose.Imaging.Color.Blue,
            Aspose.Imaging.Color.Yellow);

    Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(bmpImage);
    graphics.FillRectangle(gradientBrush, bmpImage.Bounds);

    Aspose.Imaging.ImageOptions.GifOptions saveOptions = new Aspose.Imaging.ImageOptions.GifOptions();

    // The number of bits required to store a color, minus 1.
    saveOptions.ColorResolution = 7;

    // Palette correction means that whenever image is exported to GIF the source image colors will be analyzed
    // in order to build the best matching palette (in case image Palette does not exist or not specified in the options)
    saveOptions.DoPaletteCorrection = true;

    // Load a GIF image in a progressive way.
    // An interlaced GIF doesn't display its scanlines linearly from top to bottom, but instead reorders it
    // so the content of the GIF becomes clear even before it finishes loading.
    saveOptions.Interlaced = true;

    // Save as a lossless GIF.
    using (System.IO.Stream stream = System.IO.File.OpenWrite(dir + "output.gif"))
    {
        bmpImage.Save(stream, saveOptions);
        System.Console.WriteLine("The size of the lossless GIF: {0} bytes.", stream.Length);
    }

    // Set the maximum allowed pixel difference. If greater than zero, lossy compression will be used.
    // The recommended value for optimal lossy compression is 80. 30 is very light compression, 200 is heavy.
    saveOptions.MaxDiff = 80;

    // Save as a lossy GIF.
    using (System.IO.Stream stream = System.IO.File.OpenWrite(dir + "output.lossy.gif"))
    {
        bmpImage.Save(stream, saveOptions);
        System.Console.WriteLine("The size of the lossy GIF: {0} bytes.", stream.Length);
    }
}

//The output may look like this:
//The size of the lossless GIF: 212816 bytes.
//The size of the lossy GIF: 89726 bytes.

GifOptions.Interlaced

GifOptions.Interlaced property

Examples

See Also