How to crop and rotate a AnnRectangle contents

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This topic and its replies were posted before the current version of LEADTOOLS was released and may no longer be applicable.

#1 Posted : Monday, November 24, 2008 2:27:35 PM(UTC)

cacuna

Groups: Registered
Posts: 1

Hello,

I´m working with Leadtools v15.

My problem is:

I have some people photos to prepare for identification purpose, this photos and people's information are in paper and photos are glued to the paper. Sometimes the pictures are a little rotated.

What I need is to use a rectangle to frame the photo and rotate if
necessary, for this I am using AnnRectangle the problem is that I can
not find a way to obtain the contents of the rectangle selected and then rotate.

Thanks.


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#2 Posted : Monday, November 24, 2008 11:13:06 PM(UTC)

Maen Hasan

Groups: Registered, Tech Support
Posts: 1,326

Was thanked: 1 time(s) in 1 post(s)

Actually there is no need to use the AnnRectangle object to frame the photo. You just need to draw a region around the photo and then do the following:
- After drawing the region, get a temp raster image that contains only the photo. You can do this by using the Clone method:
+-------+
Rectangle Rect = new Rectangle(0, 0, 40, 40);
activeForm.Automation.Viewer.Image.AddRectangleToRegion(null, Rect, RasterRegionCombineMode.Set);
RasterImage Tempimage = activeForm.Automation.Viewer.Image.Clone(Rect);
+-------+

- Rotate the temp image by using the RotateCommand:
+-------+
Leadtools.ImageProcessing.RotateCommand cmd = new Leadtools.ImageProcessing.RotateCommand();
cmd.Angle = 90;
cmd.Run(Tempimage);
+-------+

- Combine the temp image with the original image using the CombineFastCommand class.

Thanks,
Maen Badwan
LEADTOOLS Technical Support

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