Cropping an UIImage

Question

I\'ve got some code that resizes an image so I can get a scaled chunk of the center of the image - I use this to take a UIImage and return a small, square repre

Answer 1

I use the method below.

  -(UIImage *)getNeedImageFrom:(UIImage*)image cropRect:(CGRect)rect
  {
    CGSize cropSize = rect.size;
    CGFloat widthScale =  
    image.size.width/self.imageViewOriginal.bounds.size.width;
    CGFloat heightScale = 
    image.size.height/self.imageViewOriginal.bounds.size.height;
    cropSize = CGSizeMake(rect.size.width*widthScale,  
    rect.size.height*heightScale);
    CGPoint  pointCrop = CGPointMake(rect.origin.x*widthScale, 
    rect.origin.y*heightScale);
    rect = CGRectMake(pointCrop.x, pointCrop.y, cropSize.width, 
    cropSize.height);
    CGImageRef subImage = CGImageCreateWithImageInRect(image.CGImage, rect);
    UIImage *croppedImage = [UIImage imageWithCGImage:subImage];
    CGImageRelease(subImage);
    return croppedImage;

}