NSBundle *thisBundle = [NSBundle mainBundle];
    NSString *imagePath = [thisBundle pathForImageResource:@"testimage.png"];
    image = [[NSImage alloc] initWithContentsOfFile:imagePath];
    NSRect imageRect;
    imageRect.origin = NSZeroPoint;
    imageRect.size = [image size];

    CGFloat zoom = 3.0;
    imageRect.size.width = imageRect.size.width * zoom;
    imageRect.size.height = imageRect.size.height * zoom;

    NSLog(@"%@", image);
    [imageView setFrame:imageRect];
    [imageView setImageScaling:NSScaleProportionally];
    [imageView setImage:image];