From WWDC

baldmountain

This one is from last June at WWDC. One of the things I learned about was Core Image which is Apple's low level image processing framework. Over the weekend I wrote a B&W conversion plugin for Aperture. When I'm finished it will be free and open source. It uses channel mixer to do the conversion, a random generator with Gaussian blur to simulate film grain. The original was a bit noisy and I may have over done the film grain a bit.

baldmountain

And the original...

bdcolen

baldmountain wrote:

This one is from last June at WWDC. One of the things I learned about was Core Image which is Apple's low level image processing framework. Over the weekend I wrote a B&W conversion plugin for Aperture. When I'm finished it will be free and open source. It uses channel mixer to do the conversion, a random generator with Gaussian blur to simulate film grain. The original was a bit noisy and I may have over done the film grain a bit.

Nice try, but I think you overdid the noise quite a bit - and I'd give it more contrast.

baldmountain

bdcolen wrote:

Nice try, but I think you overdid the noise quite a bit - and I'd give it more contrast.

I agree, but the point was to let people know that I'm working on a free tool to do B&W conversions for Aperture. It shows I need a 100% view since the preview is not good enough to see the grain properly. I think I'll add the Core Image Sepia filter too.