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I´m trying to develop an app to help people with vision diseases and one of the function is to recognize the color of the object that user is pointing.

I´ve read this article about how to get the pixel color from an UIImage

Get Pixel color of UIImage

Anyone have a idea how i can get this pixel color from camera?

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Marcelo Almeida Rocha
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Marcelo, there is quite a bit of setup to get the pixel color from camera. You will need to get up to speed with AVFoundation at:

http://developer.apple.com/library/mac/#documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/04_MediaCapture.html

After you have done that, you should pull the sample code Rosy Writer: http://developer.apple.com/library/ios/#samplecode/RosyWriter/Introduction/Intro.html

This code is meant to take a live camera image and change one of the pixel colors.

I recommend you spend time on those 2 and then come back with more specific questions as you start build the app.

Hope this helps.

Khaled Barazi
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