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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: Questions of image operations
Replies: 3   Last Post: Nov 4, 2009 10:23 PM

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NouveauIX

Posts: 50
Registered: 9/10/09
Questions of image operations
Posted: Nov 4, 2009 6:04 PM
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1) How would I flip an image horizontally without using fliplr? Say my image is variable X, X(:,end:-1:1) doesn't do it.

2) How can I swap two color layers of an image? Say I want to swap the green and blue layers.

3) How can I convert an image to grayscale without using prebuilt functions or a weighted average formula?

4) How can I create a negative of an image?

5) When using imwrite, how can I write an image while also changing the image's brightness?

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