The Threshold filter converts grayscale or color images into high-contrast, black-and-white images. You can specify a certain level as a threshold. All pixels lighter than the threshold are converted to white; and all pixels darker are converted to black.

How do you smooth threshold in Photoshop?

Go to the Threshold menu under Image. The Threshold screen will pop up. Use the slider to adjust the image. You’ll see that as you move the slider left, the less detail there is until the image disappears.

What is a threshold adjustment?

Create a two-tone, black and white image from grayscale or color images based on a pixel intensity threshold. Any pixels lighter than the threshold are converted to white; any pixels darker than the threshold are converted to black.