使用WPF将位图复制到其他位图

// 加载原始位图
BitmapImage sourceBitmap = new BitmapImage(new Uri("原始位图路径"));

// 创建目标位图
WritableBitmap targetBitmap = new WritableBitmap(sourceBitmap.PixelWidth, sourceBitmap.PixelHeight, sourceBitmap.DpiX, sourceBitmap.DpiY, sourceBitmap.Format, null);

// 复制像素数据
sourceBitmap.CopyPixels(new Int32Rect(0, 0, sourceBitmap.PixelWidth, sourceBitmap.PixelHeight), targetBitmap.BackBuffer, targetBitmap.BackBufferStride * targetBitmap.PixelHeight, targetBitmap.BackBufferStride);

// 更新目标位图
targetBitmap.Lock();
targetBitmap.AddDirtyRect(new Int32Rect(0, 0, targetBitmap.PixelWidth, targetBitmap.PixelHeight));
targetBitmap.Unlock();