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#1 Posted : Wednesday, May 9, 2012 6:54:04 AM(UTC)
Maen Hasan

Groups: Registered, Tech Support
Posts: 1,326

Was thanked: 1 time(s) in 1 post(s)

LEADTOOLS Shader Effects in Silverlight (such as ContrastAdjustEffect) affect on the display of the image. You can save the Silverlight image after applying LEADTOOLS Shader Effects by using the following code:
theViewer.Source = null;
theViewer.Source = RasterImageConverter.ConvertToSource(rasterImage.Clone(), ConvertToSourceOptions.None);
ContrastAdjustEffect effect = new ContrastAdjustEffect();
effect.Brightness = 0.0;
effect.Contrast = 1.2;
theViewer.ImageEffect = effect;

// We have a bitmap in the Image control, so we can do the following:
BitmapSource bitmap = (BitmapSource)theViewer.Source;

// To capture the output of the effect, we need to use a WritableBitmap
WriteableBitmap writeableBitmap = new WriteableBitmap((int)theViewer.ActualWidth, (int)theViewer.ActualHeight);

// Render the effect
writeableBitmap.Render(theViewer, null);

// Now, save it as a png, must use LEADTOOLS
SaveFileDialog dialog = new SaveFileDialog();
if (dialog.ShowDialog() == true)
using (Stream stream = dialog.OpenFile())
RasterImage rasterImage1 = RasterImageConverter.ConvertFromSource(writeableBitmap, ConvertFromSourceOptions.UseWritableBitmap);
RasterCodecs codecs = new RasterCodecs();
codecs.Save(rasterImage1, stream, RasterImageFormat.Png, 0);

Maen Badwan
LEADTOOLS Technical Support

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