my save method

gistfile1.m

- (void)save {
    
        UIImage *bgImage = editView.image;
        //UIImage *fgImage = yoloView.image;

        // a rect that has has the transformation from the yoloview applied to it
        CGRect rect = CGRectApplyAffineTransform([yoloView frame], [yoloView transform]);
                                                                 
        // the rect we are manipulating
        //CGRect rect = CGRectMake(0, 0, yoloView.size.width, yoloView.image.size.height);

        // begin rendering context
        UIGraphicsBeginImageContextWithOptions(bgImage.size, FALSE, 0.0);
    
        // first draw background image
        [bgImage drawInRect:CGRectMake( 0, 0, bgImage.size.width, bgImage.size.height)];    

        // the current context
        CGContextRef ctx = UIGraphicsGetCurrentContext();

        // Clear the context
        CGContextClearRect(ctx, rect);
    
        // Transform the image (as the image view has been transformed)
        CGContextConcatCTM(ctx, yoloView.transform);
        // translate for different coordinate systems
        CGContextTranslateCTM(ctx, rect.size.width * 1.5, rect.size.height * 1.5);        

        // CGContextTranslateCTM(ctx, -rect.size.width * 1.5, -rect.size.height * 1.5);
    
        // Translate and scale upside-down to compensate for Quartz's inverted coordinate system
        CGContextTranslateCTM(ctx, 0.0, rect.size.height);
        CGContextScaleCTM(ctx, 1.0, -1.0);

        // to maintain scale
        CGContextScaleCTM(ctx, 4, 4);        
        
        // draw the bitmap
        CGContextDrawImage(ctx, rect, yoloView.image.CGImage);

        // save the instance of an image
        UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext(); // end the drawing
        UIImageWriteToSavedPhotosAlbum(newImage, nil, nil, nil); // save the image

        NSLog(@"saved");
}

• Line 21: because im using an iphone 4s and it has a retina display. Or is it a coordinate system thing
• Line 16: Multiplying by 1.5 is close, but still off by a little