C# 在windows phone上模糊图像
我正在使用WriteableBitmapEX库尝试在windows phone 8上模糊位图图像我尝试了以下代码C# 在windows phone上模糊图像,c#,windows-phone-8,windows-phone,writeablebitmapex,C#,Windows Phone 8,Windows Phone,Writeablebitmapex,我正在使用WriteableBitmapEX库尝试在windows phone 8上模糊位图图像我尝试了以下代码 Uri uri = new Uri(AnyUri, UriKind.RelativeOrAbsolute); BitmapImage img1 = new BitmapImage(); img1.UriSource = uri; img1.CreateOptions = BitmapCreateOptions.None; WriteableBitmap wbm = new Write
Uri uri = new Uri(AnyUri, UriKind.RelativeOrAbsolute);
BitmapImage img1 = new BitmapImage();
img1.UriSource = uri;
img1.CreateOptions = BitmapCreateOptions.None;
WriteableBitmap wbm = new WriteableBitmap(img1);
var wbm2 = WriteableBitmapExtensions.Convolute(wbm, WriteableBitmapExtensions.KernelGaussianBlur5x5);
PanoramaBackground.ImageSource = wbm2;
但有一个例外“对象引用未设置为对象的实例”
在行WriteableBitmap wbm=newwriteablebitmap(img1)代码>
为什么这不起作用???这应该起作用:
WriteableBitmap bitmap = BitmapFactory.New(0, 0).FromContent("RelativePathHere.png");
var blurredBitmap = WriteableBitmapExtensions.Convolute(bitmap, WriteableBitmapExtensions.KernelGaussianBlur5x5);
ImageControl.Source = blurredBitmap;
编辑
好的,看起来您是从web上获取图像的,您遇到了一个异常,因为图像尚未加载。您需要订阅ImageOpened事件处理程序。代码如下:
Uri uri = new Uri("AbsoluteUriPath.png", UriKind.Absolute);
BitmapImage img1 = new BitmapImage(uri);
img1.CreateOptions = BitmapCreateOptions.None;
img1.ImageOpened += (s, e) =>
{
WriteableBitmap bitmap = new WriteableBitmap(img1);
var blurredBitmap = WriteableBitmapExtensions.Convolute(bitmap,
WriteableBitmapExtensions.KernelGaussianBlur5x5);
ImageControl.Source = blurredBitmap;
};
您确定这是一个完整的代码示例吗?那个密码看起来不错。是的,我确信!但它不起作用@Danielkelley如果图像不是相对的呢??图像源是来自的绝对链接API@HeshamHaleem我试着使用你的代码,它也可以工作。你能分享你正在测试的绝对链接吗?