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2014/10/15 ¤U¤È 10:13:25

iphone Programming Glossary: returnimage

matchTemplate opencv not working as shown in opencv document

http://stackoverflow.com/questions/12049358/matchtemplate-opencv-not-working-as-shown-in-opencv-document

context transform CGContextDrawImage UIGraphicsGetCurrentContext CGRectMake 0 0 width height imgRef UIImage returnImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return returnImage UIImage scaleAndRotateImageFrontCamera.. 0 0 width height imgRef UIImage returnImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return returnImage UIImage scaleAndRotateImageFrontCamera UIImage image static int kMaxResolution 640 CGImageRef imgRef image.CGImage CGFloat.. context transform CGContextDrawImage UIGraphicsGetCurrentContext CGRectMake 0 0 width height imgRef UIImage returnImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return returnImage @end This is code I used to find..

OpenCV install in xcode

http://stackoverflow.com/questions/12214273/opencv-install-in-xcode

context transform CGContextDrawImage UIGraphicsGetCurrentContext CGRectMake 0 0 width height imgRef UIImage returnImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return returnImage UIImage scaleAndRotateImageFrontCamera.. 0 0 width height imgRef UIImage returnImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return returnImage UIImage scaleAndRotateImageFrontCamera UIImage image static int kMaxResolution 640 CGImageRef imgRef image.CGImage CGFloat.. context transform CGContextDrawImage UIGraphicsGetCurrentContext CGRectMake 0 0 width height imgRef UIImage returnImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return returnImage @end Rename your view controller..

Is programmatically inverting the colors of an image possible?

http://stackoverflow.com/questions/6672517/is-programmatically-inverting-the-colors-of-an-image-possible

get a CG image from the context wrap that into a UIImage CGImageRef cgImage CGBitmapContextCreateImage context UIImage returnImage UIImage imageWithCGImage cgImage clean up CGImageRelease cgImage CGContextRelease context free memoryPool and return return.. imageWithCGImage cgImage clean up CGImageRelease cgImage CGContextRelease context free memoryPool and return return returnImage @end So that adds a category method to UIImage that creates a clear CoreGraphics bitmap context that it can access the memory..