Resize cropped image - objective-c

Question

Have the similar problem as this post:
How to remove the transparent area of an UIImageView after masking?
but solution doesn't help me, in my case I am cropping image to multi parts, and every part has bounds like parent image had, this is cropping function:
- (UIImage*) maskImage:(CALayer *) sourceLayer toAreaInsidePath:(UIBezierPath*) maskPath;
{
return [self compositeImage:sourceLayer onPath:maskPath usingBlendMode:kCGBlendModeSourceIn];
}
- (UIImage*) compositeImage:(CALayer *) layer onPath:(UIBezierPath*) path usingBlendMode:(CGBlendMode) blend;
{
UIGraphicsBeginImageContext([layer frame].size);
[layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *sourceImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIGraphicsBeginImageContext([layer frame].size);
[path fill];
[sourceImage drawInRect:[layer frame] blendMode:blend alpha:1.0];
UIImage *maskedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return maskedImage;
}
and how I am using it:
- (PuzzlePart *)calculate:(NSDictionary *) item
{
UIBezierPath *path = [self calculatePath:[item objectForKey:#"figure"]];
UIImageView *iView = [[UIImageView alloc] initWithImage:image];
//iView.contentMode = UIViewContentModeCenter;
UIImage *imagePart = [self maskImage:iView.layer toAreaInsidePath:path];
iView.image = imagePart;
return [[PuzzlePart alloc] initWithParams:imagePart lhckID:lifehackID];
}
- (UIBezierPath *)calculatePath:(NSArray *) points {
UIBezierPath *path = [UIBezierPath bezierPath];
NSDictionary *point = [points objectAtIndex:0];
[path moveToPoint:CGPointMake([point[#"x"] intValue], [point[#"y"] intValue])];
for (int i = 1; i < [points count]; i++) {
point = [points objectAtIndex:i];
[path addLineToPoint:CGPointMake([point[#"x"] intValue], [point[#"y"] intValue])];
}
[path closePath];
return path;
}
and place it:
- (void)placeItems
{
for (PuzzlePart *part in puzzleParts) {
UIImage *imagePart = [part imagePart];
CGRect newRect = [self cropRectForImage:imagePart];
UIImage *image = [self imageWithImage:imagePart convertToSize:newRect.size];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
//imageView.contentMode = UIViewContentModeCenter;
imageView.center = CGPointMake([self getRandomNumberBetween:0 to:self.view.frame.size.width],
[self getRandomNumberBetween:0 to:self.view.frame.size.height]);
[self.view addSubview:imageView];
while ([self viewIntersectsWithAnotherView:self.view chosenView:imageView]) {
viewPositionMovingStep++;
[self placeItem:self.view:imageView];
}
}
[self startCountdown];
}
[self cropRectForImage:imagePart] is the same method from post I marked
and this what I have after:
any ideas? Thank you!