Understand the Threshold Image Adjustment in Photoshop CS4


show more Understanding the Threshold adjustment provides you with in-depth training on Design. Taught by Jan Kabili as part of the Photoshop CS4: Image Adjustments in Depth show less
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Understanding the Threshold adjustment

One of the adjustments in Photoshop that you may not be familiar with is the Threshold adjustment. This adjustment takes all the pixels in an image and pushes them to either pure white or pure black. One use for this adjustment is to add a graphic look to a photograph like this one. I'll show you how in this lesson. I'm going to add a Threshold adjustment not as a direct adjustment, but as an adjustment layer. So I'll go to the Adjustment panel, and I'm going to click here on the Threshold icon. That adds this Threshold adjustment layer. And it really changes the look of the image. All of the pixels in that photograph now appear either appear pure black or pure white.

To understand why, take a look at the Adjustments panel. Here there is a histogram of the tonal values in the underlying photograph. And those range from level 255 pure white on the right, to level 0, or pure black on the left. There is a slider here that's smack dab in the middle at level 128. And thi...

Understanding the Threshold adjustment
Video duration: 2m 8s 3h 46m Intermediate

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Understanding the Threshold adjustment provides you with in-depth training on Design. Taught by Jan Kabili as part of the Photoshop CS4: Image Adjustments in Depth

Subjects:
Design Photography
Software:
Photoshop
Author:
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