Emboss filters work somewhat like edge detection filters, with the difference that embossed images are entirely gray. Areas in the picture are detected and are given a certain “height level”, which is made visible by using grayscale borders, making the image look like it is three-dimensional.
You can find the filters in the -> menu. Except for the Emboss with Variable Depth filter, these filters are not customizable. See the section on the Emboss dialog for more information on the settings of the Emboss with Variable Depth filter.
The image with the Emboss in All Directions filter applied to it
The image with the Emboss with Variable depth filter applied to it
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