Image and photo editing encompasses the processes of altering images, whether they be digital photographs, traditional photochemical photographs, or illustrations.
Graphics software programs, which can be broadly grouped into image manipulation programs, vector graphics editors, raster graphics editors, and 3D modelers, are the primary tools used. With these tools, a user may manipulate, enhance, and transform images.
Photo editing has many practical applications, both in everyday professional and personal use. Every magazine, website, studio, or advertising firm use these tools to edit images and produce stunning photos and layouts.
For personal use, you can use photo editors to crop and jazz up your pictures, create photo collages, or even eliminate red eyes and other blemishes.
More advanced uses include designing graphics like logos and icons, or illustrations and 3D drawings. There are specific editors you would use to achieve your desired effect, but nearly every function you need has a free open source solution.
Photo editing, or image editing, is the most basic manipulation level. These days, cameras or computers offer basic image enhancement features that correct color hue and brightness, as well as other editing features like red eye removal, sharpness adjustments, zoom features, and cropping.
Raster graphics—or bitmap—is a dot matrix data structure representing a generally rectangular grid of pixels, or points of color, viewable via a monitor, paper, or other display medium.
Most modern computers have bitmapped displays, and raster-based image editors are a common type of software used. Raster-based image editors include GIMP, Paint.NET, MS Paint, Photoshop, and Painter.
Vector graphics use geometric shapes, and points, lines, and curves to represent images in computer graphics. Scalable Vector Graphics, or SVG, files are a common format for vector graphics, and are a universal standard for open source software. Common vector graphics editors include Inkscape, Adobe Illustrator, CorelDRAW, and Xfig.