本篇内容介绍了“c#中Bitmap转bitmapImage高效方法是什么”的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!
public BitmapImage BitmapToBitmapImage(System.Drawing.Bitmap bitmap) { System.Drawing.Bitmap bitmapSource = new System.Drawing.Bitmap(bitmap.Width, bitmap.Height); int i, j; for (i = 0; i < bitmap.Width; i++) for (j = 0; j < bitmap.Height; j++) { System.Drawing.Color pixelColor = bitmap.GetPixel(i, j); System.Drawing.Color newColor = System.Drawing.Color.FromArgb(pixelColor.R, pixelColor.G, pixelColor.B); bitmapSource.SetPixel(i, j, newColor); } MemoryStream ms = new MemoryStream(); bitmapSource.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp); BitmapImage bitmapImage = new BitmapImage(); bitmapImage.BeginInit(); bitmapImage.StreamSource = new MemoryStream(ms.ToArray()); bitmapImage.EndInit(); return bitmapImage; }
这种方法快多了。赶紧快去试试吧:
public BitmapImage ToBitmapImage(System.Drawing.Bitmap ImageOriginal) { System.Drawing.Bitmap ImageOriginalBase = new System.Drawing.Bitmap(ImageOriginal); BitmapImage bitmapImage = new BitmapImage(); using (System.IO.MemoryStream ms = new System.IO.MemoryStream()) { ImageOriginalBase.Save(ms, System.Drawing.Imaging.ImageFormat.Png); bitmapImage.BeginInit(); bitmapImage.StreamSource = ms; bitmapImage.CacheOption = BitmapCacheOption.OnLoad; bitmapImage.EndInit(); bitmapImage.Freeze(); } return bitmapImage; }
补:C# Byte[]、Image、Bitmap 之间的相互转换
/// <summary> /// 将图片Image转换成Byte[] /// </summary> /// <param name="Image">image对象</param> /// <param name="imageFormat">后缀名</param> /// <returns></returns> public static byte[] ImageToBytes(Image Image, System.Drawing.Imaging.ImageFormat imageFormat) { if (Image == null) { return null; } byte[] data = http://www.cnblogs.com/peasana/archive/2012/02/13/null; using (MemoryStream ms= new MemoryStream()) { using (Bitmap Bitmap = new Bitmap(Image)) { Bitmap.Save(ms, imageFormat); ms.Position = 0; data = https://cache.yisu.com/upload/information/20211118/112/375749.Png); BitmapImage bImage = new BitmapImage(); bImage.BeginInit(); bImage.StreamSource = new MemoryStream(ms.ToArray()); bImage.EndInit(); ms.Dispose(); Bi.Dispose(); System.Windows.Controls.Image i = new System.Windows.Controls.Image(); i.Source = bImage; return i ; } //byte[] 转换 Bitmap public static Bitmap BytesToBitmap(byte[] Bytes) { MemoryStream stream = null; try { stream = new MemoryStream(Bytes); return new Bitmap((Image)new Bitmap(stream)); } catch (ArgumentNullException ex) { throw ex; } catch (ArgumentException ex) { throw ex; } finally { stream.Close(); } } //Bitmap转byte[] public static byte[] BitmapToBytes(Bitmap Bitmap) { MemoryStream ms = null; try { ms = new MemoryStream(); Bitmap.Save(ms, Bitmap.RawFormat); byte[] byteImage = new Byte[ms.Length]; byteImage = ms.ToArray(); return byteImage; } catch (ArgumentNullException ex) { throw ex; } finally { ms.Close(); } } }
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