Resize

GifImage.Resize method (1 of 2)

Modify the size of the image while maintaining its aspect ratio and visual quality. This function allows for easy adjustment of the image dimensions to suit specific display or storage needs, ensuring optimal presentation without distortion or loss of detail.

public override void Resize(int newWidth, int newHeight, ResizeType resizeType)
ParameterTypeDescription
newWidthInt32The new width.
newHeightInt32The new height.
resizeTypeResizeTypeThe resize type.

Examples

This example loads a GIF image and resizes it using various resizing methods.

[C#]

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

using (Aspose.Imaging.FileFormats.Gif.GifImage image = (Aspose.Imaging.FileFormats.Gif.GifImage)Aspose.Imaging.Image.Load(dir + "sample.gif"))
{
    // Scale up by 2 times using Nearest Neighbour resampling.
    image.Resize(image.Width* 2, image.Height* 2, Aspose.Imaging.ResizeType.NearestNeighbourResample);
    image.Save(dir + "upsample.nearestneighbour.gif");
}

using (Aspose.Imaging.FileFormats.Gif.GifImage image = (Aspose.Imaging.FileFormats.Gif.GifImage)Aspose.Imaging.Image.Load(dir + "sample.gif"))
{
    // Scale down by 2 times using Nearest Neighbour resampling.
    image.Resize(image.Width / 2, image.Height / 2, Aspose.Imaging.ResizeType.NearestNeighbourResample);
    image.Save(dir + "downsample.nearestneighbour.gif");
}

using (Aspose.Imaging.FileFormats.Gif.GifImage image = (Aspose.Imaging.FileFormats.Gif.GifImage)Aspose.Imaging.Image.Load(dir + "sample.gif"))
{
    // Scale up by 2 times using Bilinear resampling.
    image.Resize(image.Width* 2, image.Height* 2, Aspose.Imaging.ResizeType.BilinearResample);
    image.Save(dir + "upsample.bilinear.gif");
}

using (Aspose.Imaging.FileFormats.Gif.GifImage image = (Aspose.Imaging.FileFormats.Gif.GifImage)Aspose.Imaging.Image.Load(dir + "sample.gif"))
{
    // Scale down by 2 times using Bilinear resampling.
    image.Resize(image.Width / 2, image.Height / 2, Aspose.Imaging.ResizeType.BilinearResample);
    image.Save(dir + "downsample.bilinear.gif");
}

See Also

GifImage.Resize method (2 of 2)

Resize the width and height of the image while maintaining its aspect ratio and applying additional settings as specified. This method ensures that the image dimensions are adjusted proportionally, preserving the overall visual quality and appearance according to the provided settings.

public override void Resize(int newWidth, int newHeight, ImageResizeSettings settings)
ParameterTypeDescription
newWidthInt32The new width.
newHeightInt32The new height.
settingsImageResizeSettingsThe resize settings.

Examples

This example loads a GIF image and resizes it using various resizing settings.

[C#]

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

Aspose.Imaging.ImageResizeSettings resizeSettings = new Aspose.Imaging.ImageResizeSettings();

// The adaptive algorithm based on weighted and blended rational function and lanczos3 interpolation.
resizeSettings.Mode = Aspose.Imaging.ResizeType.AdaptiveResample;

// The small rectangular filter
resizeSettings.FilterType = Aspose.Imaging.ImageFilterType.SmallRectangular;

// The number of colors in the palette.
resizeSettings.EntriesCount = 256;

// The color quantization is not used
resizeSettings.ColorQuantizationMethod = ColorQuantizationMethod.None;

// The euclidian method
resizeSettings.ColorCompareMethod = ColorCompareMethod.Euclidian;

using (Aspose.Imaging.Image image = (Aspose.Imaging.Image)Aspose.Imaging.Image.Load(dir + "sample.gif"))
{
    Aspose.Imaging.FileFormats.Gif.GifImage gifImage = (Aspose.Imaging.FileFormats.Gif.GifImage)image;

    // Scale down by 2 times using adaptive resampling.
    gifImage.Resize(image.Width / 2, image.Height / 2, resizeSettings);

    // Save to PNG
    gifImage.Save(dir + "downsample.adaptive.png", new Aspose.Imaging.ImageOptions.PngOptions());
}

See Also

RemoveBlock ResizeFullFrame