CODEWITHSUNDEEP
objective-ciphoneuiimageviewcore-graphics
LIAL
LIAL

Reputation: 1634

How can I make image brighter (more light as flash effect) using Core Graphics

How can I get flash effect for images got from Camera? After I got image from camera (it shows in UIImageView) and before saving it as a file I'd like to lighten (in some cases) image by pressing Flash button. Is it possible by using Core Graphics ??

Upvotes: 0

Views: 1848

Answers (1)

Rob Keniger
Rob Keniger

Reputation: 46020

Have a look at my answer to this question. That question was about making an image darker, but you could use exactly the same code and make the image lighter by overlaying a partially transparent white color:

//draw a 50% white overlay
CGContextSetGrayFillColor(cx, 1.0, 0.5);
CGContextFillRect(cx, imageRect);

Upvotes: 2

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