Gerry Heidenreich

 

Updated - see new post here.

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A little while back I ran into a couple situations (desktop: batch image resampling & web: facebook) that involved some basic image manipulation, so I threw together a quick dll to handle it for me.  Also, I've found that we've gotten quite a few copies of Photoshop being used for little more than cropping & resampling.

For anyone that could use such things, simply grab this zip, add a reference to the dll, and go to town.  Inside the zip, you'll find the source project & and a winforms demo app project that uses each of the methods. 

[.Net Image Cropper/Resampler]

The interface to the ImageManipulator class is below.

public interface IImageManipulator{
   void LoadNewImage(Bitmap Image);

   Bitmap ResampleTo(int Width, int Height);
   Bitmap ResampleToWidth(int Width, bool KeepAspectRatio);
   Bitmap ResampleToHeight(int Height, bool KeepAspectRatio);

   Bitmap CropFromTop(int PixelsFromTop);
   Bitmap CropFromBottom(int PixelsFromBottom);
   Bitmap CropFromRight(int PixelsFromRight);
   Bitmap CropFromLeft(int PixelsFromLeft); 

   void Undo();
   void Redo();

   Bitmap Current{get;set;}
   int HistoryCount{get;}
}