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A raster image processor is a processing tool or resource for raster or bitmap graphics. In handling raster images, a raster image processor works with sets of pixels or bits that are programmed for monochrome or color display. This type of tool often sends the processed image to a printer or handles the transfer between various types of hardware.
Techopedia Explains Raster Image Processor
A raster image processor may turn a vector image into a raster image, migrate a raster image of different resolutions or use various kinds of filters to manipulate an image.
The idea behind a raster file is that each small bit of the display is coordinated by carefully programmed color information. Formats like BMP and JPEG illustrate the raster image technique. Raster images can be difficult to alter and save, and, typically, the raster image processor has to provide comprehensive techniques for dealing with these relatively inflexible types of files. However, the idea of a raster image has been an underlying part of graphics evolution during the last 30 years of programming and was evident in 1980s-era visual display programs, where users became familiar with graphics handling through software like MacPaint and MS Paint.
