/*
* public static WriteableBitmap WriteableBitmapBlur(this WriteableBitmap writeableBitmapOld, int kernelWidth, int kernelHeight)
* {
* var cloneWriteableBitmap = WriteableBitmapExpansion.CopyWriteableBitmap(writeableBitmapOld);
* WriteableBitmapConvolutionExtensions.GaussianBlur(cloneWriteableBitmap, kernelWidth, kernelHeight);
* cloneWriteableBitmap.Invalidate();
* return cloneWriteableBitmap;
* }
*/
/// <summary>
/// 高斯滤波
/// </summary>
/// <param name="writeableBitmapOld"></param>
/// <param name="radius">0 to 100</param>
/// <param name="sigma">0 to 30</param>
/// <returns></returns>
public static WriteableBitmap WriteableBitmapBlur(this WriteableBitmap writeableBitmapOld, int radius, double sigma)
{
var cloneWriteableBitmap = WriteableBitmapExpansion.CopyWriteableBitmap(writeableBitmapOld);
var writeableBitmap = WriteableBitmapConvolutionExtensions.GaussFilter(cloneWriteableBitmap, radius, sigma);
writeableBitmap.Invalidate();
return(writeableBitmap);
}
public static WriteableBitmap WriteableBitmapBlur(this WriteableBitmap writeableBitmapOld)
{
var cloneWriteableBitmap = WriteableBitmapExpansion.CopyWriteableBitmap(writeableBitmapOld);
WriteableBitmapConvolutionExtensions.GaussianBlur(cloneWriteableBitmap);
cloneWriteableBitmap.Invalidate();
return(cloneWriteableBitmap);
}
public static WriteableBitmap WriteableBitmapBlur(this WriteableBitmap writeableBitmapOld, int x, int y)
{
if ((x & 1) == 0 || (y & 1) == 0)
{
return(null);
}
var cloneWriteableBitmap = WriteableBitmapExpansion.CopyWriteableBitmap(writeableBitmapOld);
WriteableBitmapConvolutionExtensions.BoxBlur(cloneWriteableBitmap, x, y);
cloneWriteableBitmap.Invalidate();
return(cloneWriteableBitmap);
}
private void SetImage(string source)
{
BitmapImage img1 = new BitmapImage(new Uri(source, UriKind.RelativeOrAbsolute));
ImageBack.Source = img1;
img1.CreateOptions = BitmapCreateOptions.None;
img1.ImageOpened += (s, e) =>
{
WriteableBitmap bitmap = new WriteableBitmap(img1);
WriteableBitmapConvolutionExtensions.BoxBlur(bitmap, 145);
ImageBackBlur.Source = bitmap;
};
}
