The Emboss effect gives the illusion that the image has been raised from its surface and lit from a specific direction, making
it appear three-dimensional.
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Specifies the operator's name.
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Sets the opacity of the effect over the input image. A value of 0 makes the effect completely transparent, while a value of
100 makes it completely opaque.
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Uses the input image's alpha channel as a mask for applying the effect. The effect is fully applied to areas of the image
where the alpha channel is white, and not at all to areas where it is black.
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Enable the RGB and/or Alpha options to specify whether the effect is applied to the RGB channels, the Alpha channel, or both.
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Set lower values to decrease the amount of embossing, or set higher values to increase the amount.
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Select the direction from which to illuminate the image. Changing the light position will highlight different embossed features
in the image.
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