Analysis of information sources in references of the Wikipedia article "Raster graphics editor" in English language version.
Digital images consist of a grid of square pixels. Each image has a size measured in two dimensions, such as 900 pixels wide by 600 pixels high
A raster image is an image file defined as a grid of pixels. They're also referred to as bitmaps. Common raster image formats on the Web are JPEG, PNG, GIF, and ICO.
