我希望在用户点击的图像位置上添加模糊效果。用户可以在图像上多次点击,当他点击图像某个位置时,该位置将变得模糊。
using (var blurfilters = new FilterEffect(source))
{
var blur = new BlurFilter();
blurfilters.Filters = new IFilter[] { blur };
var target = new WriteableBitmap((int)img1.ActualWidth, (int)img1.ActualHeight);
using (var renderer = new WriteableBitmapRenderer(blurfilters, target))
{
await renderer.RenderAsync();
img1.Source = target;
}
}