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Fill corners of rotated image

imregrotate(varargin) ROIROTATE Rotate & crop region of interest avoiding 'black corners'.
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4.6 | 5 ratings Rate this file 11 Downloads (last 30 days) File Size: 3.33 KB File ID: #1825

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Fill corners of rotated image

by Vlad Atanasiu

12 Jun 2002 (Updated 31 Oct 2008)

Rotate image without making black edges.

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Description	ROIROTATE was designed to avoid the 'black corners' typical of MATLAB's imrotate function, which are apearing from its behaviour of padding by zeros of the space outside the image borders prior to the rotation. This is possible if the image to be rotated is part of a bigger image, because there is enough information to fill the corners.
Required Products	Image Processing Toolbox
MATLAB release	MATLAB 6.1 (R12.1)

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Everyone's Tags	analysis, geometric transformation, image, image analysis, image registration, region of interest, rotate
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Comments and Ratings (6)
02 Dec 2011	amir yavari	great job tnx
13 May 2011	Mohsen Jamali	thanks a lot
11 Feb 2009	Husam Aldahiyat
31 Oct 2008	Vlad Atanasiu	Bug removed. Thanks Mathew!
27 Oct 2008	Matthew	Great, but there is one small but important bug! When calculating the padding, it doesn't convert from degrees to radians, which means that occasionally it will not pad the images enough. Just make sure you edit the padX and padY variables and it will work beautifully!
12 Nov 2003	Elwyn Jenkins	Great

Updates
31 Oct 2008	Degrees are now converted to radians before image processing.