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    <p>The only thing I can think of would be to create a rectangular mostly transparent view with the desired color and lay it over your image view by adding it as a subview. I'm not sure if this will really tint the image in the way you imagine though, I'm not sure how you would hack into an image and selectively replace certain colors with others... sounds pretty ambitious to me.</p> <p>For example:</p> <pre><code>UIImageView *yourPicture = (however you grab the image); UIView *colorBlock = [[UIView alloc] initWithFrame:yourPicture.frame]; //Replace R G B and A with values from 0 - 1 based on your color and transparency colorBlock.backgroundColor = [UIColor colorWithRed:R green:G blue:B alpha:A]; [yourPicture addSubView:colorBlock]; </code></pre> <p>Documentation for UIColor:</p> <pre><code>colorWithRed:green:blue:alpha: Creates and returns a color object using the specified opacity and RGB component values. + (UIColor *)colorWithRed:(CGFloat)red green:(CGFloat)green blue:(CGFloat)blue alpha:(CGFloat)alpha Parameters red - The red component of the color object, specified as a value from 0.0 to 1.0. green - The green component of the color object, specified as a value from 0.0 to 1.0. blue - The blue component of the color object, specified as a value from 0.0 to 1.0. alpha - The opacity value of the color object, specified as a value from 0.0 to 1.0. Return Value The color object. The color information represented by this object is in the device RGB colorspace. </code></pre>
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    1. POHow would I tint an image programmatically on the iPhone?
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    1. USTim Bowen
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    1. COCore Graphics seems to be able to apply bending modes. How, is the question.
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