A Unique Way to Convert Photos to Black and White

There are millions of ways to convert your photographs to black and white. Here is one more you can use and hopefully it will spark somethin...

There are millions of ways to convert your photographs to black and white. Here is one more you can use and hopefully it will spark something new in your creative catalog but let me warn you this one is pretty cool. Here's how to use Channel Calculations to convert a color image to black and white in Photoshop.


So, what the heck are channel calculations anyway? They're pretty much what they sound like: you select a single channel from an image, do the same for another image (it could be the original image as in this video), Photoshop does some math on them (the same math it uses for blending modes), and out pops a new channel, selection, or image. Because a single channel is black and white, containing luminosity data for a single color, when you combine two channels into a single output channel, the result is again black and white, making it an interesting and efficient method for generating black and white images, as th tutorial from PIXimperfect shows. It's a pleasingly tidy method, and the ability to cycle through blending modes and channel selections within the dialog box gives you a very quick library of resultant looks. Give it a try!


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