Cutting/transduction/cropping pictures of "C#/WPF" pictures

Original: Cut/transduction/cropped picture of "C#/WPF" picture

The front desk prepares two image controls. Above is the display of the original, the following shows the effect after cutting.

<StackPanel Orientation="Vertical">    <Image Width=" 383 " Height= "=" Source="c \ Users\administrator\documents\visual Studio 2015\projects\splitpic\splitpic\images\1.jpg "/>    <Image x:name="img" Stretch="None" Width="450"  Height="383" /></StackPanel>

The corresponding background code:

 Public Partial classmainwindow:window{ Public MainWindow() {InitializeComponent ();//Set the originalImg. Source =NewBitmapImage (NewUri (@ "Images/1.jpg", urikind.relative));//Cut picturesImageSource ImageSource = img.        Source;        Bitmap Bitmap = Systemutils.imagesourcetobitmap (ImageSource);        BitmapSource BitmapSource = systemutils.bitmaptobitmapimage (bitmap); BitmapSource Newbitmapsource = Systemutils.cutimage (BitmapSource,NewInt32Rect ( the, -,235,285));//Using a cut-out diagram sourceImg.    Source = Newbitmapsource; }}//Image tool class Public Static classsystemutils{//   <summary>     ///   cut Chart    //   </summary>     ///   <param name= "BitmapSource" > map source </param>     ///   <param name= "cut" > cutting area </param>     ///   <returns></returns>      Public StaticBitmapSourceCutimage(BitmapSource BitmapSource, Int32Rect cut) {//Calculation Stride        varStride = BitmapSource.Format.BitsPerPixel * cut. Width/8;//Declare byte array        byte[] data =New byte[Cut. Height * Stride];//Call CopyPixelsBitmapsource.copypixels (cut, data, stride,0);returnBitmapsource.create (cut. Width, cut. Height,0,0, Pixelformats.bgr32,NULL, data, stride); }//ImageSource-Bitmap     Public StaticSystem.Drawing.BitmapImagesourcetobitmap(ImageSource ImageSource)        {BitmapSource m = (bitmapsource) ImageSource; System.Drawing.Bitmap BMP =NewSystem.Drawing.Bitmap (M.pixelwidth, M.pixelheight, System.Drawing.Imaging.PixelFormat.Format32bppPArgb); System.Drawing.Imaging.BitmapData data = bmp. LockBits (NewSystem.Drawing.Rectangle (System.Drawing.Point.Empty, BMP.        Size), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppPArgb); M.copypixels (Int32rect.empty, data. Scan0, data. Height * data. Stride, data. Stride); Bmp. Unlockbits (data);returnBmp }//Bitmap-BitmapImage     Public StaticBitmapImageBitmaptobitmapimage(Bitmap Bitmap) {using(MemoryStream stream =NewMemoryStream ()) {bitmap.            Save (stream, imageformat.bmp); Stream. Position =0; BitmapImage result =NewBitmapImage (); Result. BeginInit ();//According to MSDN, "The default OnDemand caches option retains access to the stream until the image is needed."            //force the bitmap-load right now so we can dispose the stream.Result.            cacheoption = Bitmapcacheoption.onload; Result.            Streamsource = stream; Result.            EndInit (); Result. Freeze ();returnResult }    }}

The effect after operation is as follows:

Add: A description of the location and area of the clipping, such as.

Cutting/transduction/cropping pictures of "C#/WPF" pictures