[Objective-C] 이미지 flip 처리

UIImage *origianlImage = [UIImage imageNamed:@"source.png"];

UIImage *flippedImage = [UIImage imageWithCGImage:originalImage.CGImage

scale:1.0 

orientaion:UIImageOrientationLeftMirrored];

orientaion 종류

typedef enum {

    UIImageOrientationUp,            // default orientation

    UIImageOrientationDown,          // 180 deg rotation

    UIImageOrientationLeft,          // 90 deg CCW

    UIImageOrientationRight,         // 90 deg CW

    UIImageOrientationUpMirrored,    // as above but image mirrored along other axis. horizontal flip

    

    UIImageOrientationDownMirrored,  // horizontal flip

    UIImageOrientationLeftMirrored,  // vertical flip

    UIImageOrientationRightMirrored, // vertical flip

} UIImageOrientation;