How to crop the image in objective c?

Question

The user can change the cropbox size which is shows default in edit screen. I tried with below code :

- (UIImage *)imageByCropping:(UIImage *)imageToCrop toR         


        

Answer 1

    CGRect clippedRect  = CGRectMake(0 ,0,180 ,180);
    CGImageRef imageRef = CGImageCreateWithImageInRect(imgVw1.image.CGImage, clippedRect);
    UIImage *newImage   = [UIImage imageWithCGImage:imageRef];
    CGImageRelease(imageRef);
    imgVw1Cliped.image=newImage;

    NSLog(@"%d",imgVw1Cliped.image.imageOrientation);