Adding a watermark is not typically used as a post-processing technique in food photography, as it can distract from the image and is generally considered unprofessional.

Adjusting the white balance in food photography is done to correct the color temperature of the image, ensuring that the colors of the food are accurately represented.

A vignette is a post-processing technique that involves darkening the edges of an image, creating a sense of depth and focus on the central subject.

A sharpening filter is used in food photography to enhance the sharpness of details, making the food appear more crisp and visually appealing.

Exposure adjustment is a post-processing technique that involves adjusting the brightness and contrast of an image, ensuring that the food is properly exposed and visually appealing.

A noise reduction filter is used in food photography to reduce the appearance of noise in the image, which can occur due to high ISO settings or poor lighting conditions.

Color correction is a post-processing technique that involves selectively adjusting the color of specific areas in an image, allowing the photographer to enhance the colors of the food and make them more visually appealing.

A curves adjustment layer is primarily used in food photography to adjust the overall brightness and contrast of the image, allowing the photographer to fine-tune the exposure and create a more visually appealing image.

Blur is a post-processing technique that involves adding a soft, dreamy effect to an image, often used to create a more artistic or ethereal look.

A split toning effect is a post-processing technique that involves creating a two-tone effect in the image, often used to add a creative or vintage look.

A texture overlay is a post-processing technique that involves adding a textured overlay to an image, creating a unique and visually interesting effect.

A dodge and burn tool is used in food photography to selectively lighten or darken specific areas of the image, allowing the photographer to control the exposure and create a more visually appealing composition.

A glow effect is a post-processing technique that involves adding a glow or radiance to an image, often used to create a sense of warmth or atmosphere.

A lens correction filter is used in food photography to correct lens distortion and chromatic aberration, ensuring that the image is free from any optical imperfections.

Adding a frame or border is a post-processing technique that involves adding a decorative element around the edge of the image, often used to enhance the overall presentation.