What does the term "smart filter" refer to in Photoshop?

The term "smart filter" in Photoshop refers specifically to non-destructive filters applied to smart objects. When a smart filter is applied, it allows users to modify the effects of the filter at any point without permanently altering the original pixel data of the image. This means you can easily adjust the filter settings, change the blending mode, or even remove the filter altogether without losing the original image quality.

This feature is particularly valuable for photographers and graphic designers as it provides greater flexibility and creativity during the editing process. By using smart filters, you can experiment with different effects and make adjustments on the fly, which is crucial in a non-linear editing workflow where changes are frequently made. Each filter can also be individually masked, allowing for precise control over which areas of the image are affected.

In contrast, filters that permanently alter the image do not allow for such flexibility and can lead to irreversible changes. Filters that enhance color contrast or are designated specifically for text layers do not capture the essence of smart filters, which focus on maintaining the original data while providing editing capabilities.