Terminated due to memory issue

Question

I'm try to scale an image in UIImageView i try to call this below code getting an error Memory leak. please any one help me.

 UIImage *imagess;
 CGFloat scale = [self.slider value];
 CIImage *ciimage  = [CIImage imageWithCGImage:image.CGImage];
 CGAffineTransform t = CGAffineTransformIdentity;
 t = CGAffineTransformConcat(t, CGAffineTransformMakeScale(scale, scale));


    @autoreleasepool {
        CIImage *timage = [ciimage imageByApplyingTransform:t];

        CIContext *context = [CIContext contextWithOptions:nil];
        CGImageRef imageRef = [context createCGImage:timage fromRect:[timage extent]];
        imagess = [UIImage imageWithCGImage:imageRef];
        self.ImageView.image = imagess;

        CFRelease(imageRef);
    }