"Raster processing" refers to the manipulation of images or graphics composed of a grid structure of pixels. This type of editing typically involves altering individual pixels or groups of pixels to achieve various effects, such as changing colors, applying filters, cropping image areas, or adjusting brightness and contrast.
Typical functions of software in the "Raster processing" domain include:
Color correction and adjustment: The ability to adjust the colors of an image, whether through simple color corrections like white balance or more complex manipulations such as hue, saturation, and brightness.
Filters and effects: Applying filters and effects to the image to create various styles and looks, such as blurring, sharpening, distortion effects, or artistic filters.
Cropping and scaling: Functions for cropping or resizing the image to remove unwanted areas or to fit the image to a specific size.
Retouching and repairing: Tools for removing dust, scratches, spots, or other irregularities in the image to enhance or restore it.
Layer editing: The ability to create and edit different layers to make changes to the image in separate sheets, making editing more flexible and non-destructive.
Text and graphics embedding: The capability to insert and adjust text or graphics into the image to add captions, watermarks, or other graphic elements.
Selection and masking tools: Tools for selecting image areas or creating masks to isolate specific parts of the image for edits.