Image masking & create new UIImage - ios

Question

Here is the issue i am facing:
I have implemented the masking using maskimage.
Here is the Original Image : (Size: 300width x 418height)
Here is the Mask image: (Size: 165width x 215height)
Below is the code i have used to crop image according to mask & create new UIImage:
CALayer *mask = [CALayer layer];
mask.contents = (id)[[UIImage imageNamed:#"maskImage.png"] CGImage];
mask.frame = imgMaskImage.frame;
mask.frame = CGRectMake(mask.frame.origin.x-10, mask.frame.origin.y-50, mask.frame.size.width, mask.frame.size.height);
self.imgEditedImageView.layer.mask = mask;
self.imgEditedImageView.layer.masksToBounds = YES;
imgMaskImage.image = nil;
UIGraphicsBeginImageContext(self.imgEditedImageView.frame.size);
[self.imgEditedImageView.layer renderInContext:UIGraphicsGetCurrentContext()];
croppedImage = UIGraphicsGetImageFromCurrentImageContext();
[croppedImage drawInRect:imgMaskImage.frame];
UIGraphicsEndImageContext();
It works & crops image accordingly. Here is the result:
But the issue the Final croppedImage(UIImage) image takes the frame of original image (300x418).
I am not getting why it happens. I have tried so many things but still no solution. Can any one please suggest me if i am doing anything wrong or something is missing.
Thanks.

Answer 1

- (UIImage *)croppedPhoto {
// For dealing with Retina displays as well as non-Retina, we need to check
// the scale factor, if it is available. Note that we use the size of teh cropping Rect
// passed in, and not the size of the view we are taking a screenshot of.
CGRect croppingRect = CGRectMake(imgMaskImage.frame.origin.x,
imgMaskImage.frame.origin.y, imgMaskImage.frame.size.width,
imgMaskImage.frame.size.height);
imgMaskImage.hidden=YES;
if ([[UIScreen mainScreen] respondsToSelector:#selector(scale)]) {
UIGraphicsBeginImageContextWithOptions(croppingRect.size, YES,
[UIScreen mainScreen].scale);
} else {
UIGraphicsBeginImageContext(croppingRect.size);
}
// Create a graphics context and translate it the view we want to crop so
// that even in grabbing (0,0), that origin point now represents the actual
// cropping origin desired:
CGContextRef ctx = UIGraphicsGetCurrentContext();
CGContextTranslateCTM(ctx, -croppingRect.origin.x, -croppingRect.origin.y);
[self.view.layer renderInContext:ctx];
// Retrieve a UIImage from the current image context:
UIImage *snapshotImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
// Return the image in a UIImageView:
return snapshotImage;
}