Another Way to Convert Photos to Black and White in Gimp
I talked a while ago about converting images to black and white in The Gimp, but that was before I had installed the FX Foundry scripts (see instructions here if you don’t have them yet), and since getting the scripts, I have found an even better way to convert my images to black and white using the Lasm’s Channel Extract in FX Foundry.
First, here is my color image of my adorable niece. This isn’t unedited, but I edited it back in October, and that was before I was taking great notes about my editing, so I really couldn’t tell you what I did:
Now, let’s use the Lasm’s Channel Extract to turn this into a beautiful black and white portrait.
The first thing I did was actually run the Lasm’s Channel Extract which is found under FX-Foundry –> Toolbox –> Lasm’s Channel Extract. The following dialog box will appear:

Remember in my original converting-to-black-and-white article, we converted using the Red, Green, and Blue channels in the channel mixer? And you got a little preview of which each channel looked like? Well, what we’re about to do is create a whole new layer for those three channels plus 14 more! Now, you could just select whichever channels you want, but I always use the “All Channels” – I’ve found that there’s not usually one consistent winner in the bunch, so it doesn’t hurt to have them all to look at.
Some of the layers – like Black – gave me a really funky negative look:

However, if you get something like that, you can always do Colors –> Invert to get a more normal-looking photo:

Out of all the layers that the script created, I’m drawn most to the L layer:

I love how it brings out her eyes, and that her face is so soft and white. But, I think it’s a bit washed out and needs some rescuing with Levels. Oh, Levels, I love you so (I first talked about levels here). I know I want my dark points darker, so I slide my left-most slider in to the right, and I play around with the mid-tone slider, too, but ultimately decide I like it best where it is. I didn’t want to move the right-most slider at all, because her hair is already starting to get blown out, and I don’t want to make it worse. Here are my final settings:

And here’s my image now:

I love the image just like that. As a black and white image, it really works for me. But. I decided to do one last step to kinda warm it up some. I used the FX-Foundry –> Photo –> Effects –> Eg Duotone Simulation script, and set it to Sepia (Grey), giving me this as my final image:
I really like all the options that the Lasm’s Channel Extract gave me. Keep in mind, too, that there are more ways to adjust the layers it gives you than just with Levels. Sometimes I find that I like two layers, and so to find an equal balance between the two, I’ll play with the opacity of them, or even the blending modes. Really, the sky’s the limit here – just keep playing around until you find something you like!
Related posts:
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- Weekly Gimp Plug-in Review: FX-Foundry Part Two If you remember from last week we left off with...
- FX-Foundry’s Dynamic Range Extender: Fixing photos with bright skies I recently discovered something really cool in the FX-Foundry plug-in...
- Weekly Gimp Plug-in Review: FX-Foundry Part One This week’s gimp plug-in is actually a suite of plug-ins...
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