iOS im trying to crop the face and apply feather effect on the edge of the Image but getting nil renderer?

Question

here i’m geting the image in Img but showing nil but when i print the size of the image or display image (Img) in imageview i m getting its size and image also in imageview then when i pass the size of the image(Img) in renderer, the issue is renderer is nil i tried to print the log also but its getting Null the help will be appreciated

MY Code:

UIImage* Img =_myimage;

UIImageView * imageview = [[UIImageView alloc]initWithImage:Img];

// renderer i am getting is nil in IOS 9.3

UIGraphicsImageRenderer * renderer = [[UIGraphicsImageRenderer  alloc] initWithSize:_myimage.size];

// CGSize size=CGSizeMake(Img.size.width,Img.size.height)



   NSLog(@"renderer %@",renderer);
        UIBezierPath *Path;
        Path = [UIBezierPath bezierPath];
        Path.contractionFactor = 0.8;
        NSValue *mvalue = [_pointsarray objectAtIndex:0];
        CGPoint mp2 = [mvalue CGPointValue];
        [Path moveToPoint:mp2];
        [Path addBezierThroughPoints:_pointsarray];
        [Path closePath];
        Path.lineWidth = 2;
    CAShapeLayer*shapeLayer = [CAShapeLayer new];
    shapeLayer.path=Path.CGPath;

    [shapeLayer setFillColor:[UIColor redColor].CGColor];
    [shapeLayer fillColor];

    UIImage shapeImage = [renderer imageWithActions:^(UIGraphicsImageRendererContext  _Nonnull context){
        [shapeLayer renderInContext: context.CGContext];}];

    CIImage * shapeCimage = [[CIImage alloc]     initWithImage:shapeImage];
    CIFilter * gaussianBlurFilter = [CIFilter filterWithName:    @"CIGaussianBlur"];
    [gaussianBlurFilter setValue:shapeCimage forKey: @"inputImage"];
    [gaussianBlurFilter setValue:@7 forKey:@"inputRadius"];

    CIImage * blurredCIImage = [gaussianBlurFilter valueForKey:kCIOutputImageKey];
    UIImage * blurredImage = [UIImage imageWithCIImage:blurredCIImage];

[self.view addSubview:imageview];