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Code covered by the BSD License

contrast_controller(input_img... CONTRAST_CONTROLLER : Changes the contrast of an image by the low and high
contrast_controller2(input_im... CONTRAST_CONTROLLER2 : Changes the contrast of an image by the low and high
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3.0 | 4 ratings Rate this file 18 Downloads (last 30 days) File Size: 83.6 KB File ID: #11492

CONTRAST CONTROLLER

22 Jun 2006 (Updated 23 Oct 2009)

Contrast Adjustment of Images

File Information

Description

Two algorithms to adjust the contrast level of images are coded. One of the method is contrast stretching.

Works for both gray and colored images.

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
AUTO CONTRAST

MATLAB release

MATLAB 7.8 (R2009a)

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Everyone's Tags	adjust, contrast, control, enhancement, image, intensity, strecthing
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Comments and Ratings (6)
22 Jun 2006	Vision User	Does not seems to be useful. Try harder.
11 Mar 2008	Trung Huynh	perfect
15 Oct 2009	jichao zhao	Thanks for sharing, but I spent 10 minutes on it, it seems not very helpful. Jichao
23 Oct 2009	Divakar Roy	Added screenshot on here and images with their output images in the zipped file for all those people who are trying hard without actually knowing anything about how the contrast of images works, though I thought it is a straight-forward thing. Also added another version of contrast controller that works through another algorithm. Hope this helps out guys, cheers!
01 Jul 2010	Jaesang Lee	It works fine. End user has to write script for running these functions. thank you.
01 Jul 2010	Divakar Roy	Appreciate your feedback!

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Updates
27 Jun 2006	Help is corrected
23 Oct 2009	Added screenshot and another algorithm to do contrast adjustment with output image results.
23 Oct 2009	Minor bug fixed.