旋轉的圖像導致outofmemory異常

當我旋轉我的服務器上的圖像。它會導致內存不足異常。旋轉的圖像導致outofmemory異常

/// <summary> 
    /// Rotates the specified img. 
    /// </summary> 
    /// <param name="img">The img.</param> 
    /// <param name="rotationAngle">The rotation angle.</param> 
    /// <returns></returns> 
    public static Bitmap Rotate(Image img, float rotationAngle) 
    { 
     //create an empty Bitmap image 
     Bitmap bmp = new Bitmap(img.Width, img.Height); 

     //turn the Bitmap into a Graphics object 
     using (Graphics gfx = Graphics.FromImage(bmp)) 
     { 
      //now we set the rotation point to the center of our image 
      gfx.TranslateTransform((float) bmp.Width/2, (float) bmp.Height/2); 

      //now rotate the image 
      gfx.RotateTransform(rotationAngle); 

      gfx.TranslateTransform(-(float) bmp.Width/2, -(float) bmp.Height/2); 

      //set the InterpolationMode to HighQualityBicubic so to ensure a high 
      //quality image once it is transformed to the specified size 
      gfx.SmoothingMode = SmoothingMode.HighQuality; 
      gfx.InterpolationMode = InterpolationMode.HighQualityBicubic; 
      gfx.CompositingQuality = CompositingQuality.HighQuality; 
      gfx.PixelOffsetMode = PixelOffsetMode.HighQuality; 

      //now draw our new image onto the graphics object 
      gfx.DrawImage(img, new Point(0, 0)); 
     } 

     //return the image 
     return bmp; 
    }

唯一的例外發生在這條線：gfx.DrawImage(img, new Point(0, 0)); 我四處搜尋互聯網，發現很多人有類似的問題，但沒有解決方案。

有沒有解決方案？或者除了GDI +還有另一個庫可以用來旋轉我的圖像嗎？也許有什麼在WPF中？

堆棧跟蹤：

[OutOfMemoryException: Out of memory.] 
    System.Drawing.Graphics.CheckErrorStatus(Int32 status) +1588745 
    System.Drawing.Graphics.DrawImage(Image image, Int32 x, Int32 y) +227 
    System.Drawing.Graphics.DrawImage(Image image, Point point) +26 
    Chucksoft.Core.Drawing.ImageResizer.Rotate(Image img, Single rotationAngle) in C:\Projects\ChucksoftCore\Branches\2.5.0\Source\Chucksoft.Core\Drawing\ImageResizer.cs:245 
    Chucksoft.Core.Drawing.ImageResizer.Rotate(Byte[] b, Single angle, ImageFormat format) in C:\Projects\ChucksoftCore\Branches\2.5.0\Source\Chucksoft.Core\Drawing\ImageResizer.cs:22 
    TheMemorableMoments.Domain.Services.ImageService.Rotate(IEnumerable`1 media, User user, Single angle) in C:\Projects\TheMemorableMoments\Branches\2.1.0\Source\TheMemorableMoments\Domain\Services\ImageService.cs:34 
    TheMemorableMoments.Domain.Services.ImageService.RotateLeft(List`1 media, User user) in C:\Projects\TheMemorableMoments\Branches\2.1.0\Source\TheMemorableMoments\Domain\Services\ImageService.cs:69 
    TheMemorableMoments.UI.Controllers.User.PhotosController.Rotate(IMediaFiles media, Action`2 resizeMethod) in C:\Projects\TheMemorableMoments\Branches\2.1.0\Source\TheMemorableMoments.UI\Controllers\User\PhotosController.cs:408 
    TheMemorableMoments.UI.Controllers.User.PhotosController.RotateLeft(Media media) in C:\Projects\TheMemorableMoments\Branches\2.1.0\Source\TheMemorableMoments.UI\Controllers\User\PhotosController.cs:396 
    lambda_method(Closure , ControllerBase , Object[]) +127 
    System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +258 
    System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +39 
    System.Web.Mvc.&lt;&gt;c__DisplayClassd.&lt;InvokeActionMethodWithFilters&gt;b__a() +125 
    System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +640 
    System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +312 
    System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +709 
    System.Web.Mvc.Controller.ExecuteCore() +162 
    System.Web.Mvc.&lt;&gt;c__DisplayClass8.&lt;BeginProcessRequest&gt;b__4() +58 
    System.Web.Mvc.Async.&lt;&gt;c__DisplayClass1.&lt;MakeVoidDelegate&gt;b__0() +20 
    System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +453 
    System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&amp; completedSynchronously)

來源

2010-09-09 Chuck Conway

你的形象有多大？ – Timwi 2010-09-09 03:34:49

它是2到3個大小。它所在的服務器有4個演出。 – 2010-09-09 03:43:02

這很奇怪。沒有任何東西可以讓我認爲存在內存泄漏。就調試而言，你是否嘗試過在沒有任何轉換的情況下繪製位圖？嘗試找到哪個屬性會導致異常縮小一點。泄漏是與這個函數分離的，還是在這個特定的調用中發生內存耗盡？ – 2010-09-09 04:11:44

我得到它的工作。我從未想出「內存不足」異常。相反，我使用了圖像類的RotateFlip方法。查看RotateFlip代碼，在Reflector中，直接調用本地庫。這種方法的缺點是，你只能以90度的增量旋轉。對我而言，它的效果非常好。

來源

2010-09-09 09:03:31

旋轉的圖像導致outofmemory異常

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