rasterediting

Raster editing refers to the process of modifying or manipulating digital images that are composed of a grid of pixels. These pixels, arranged in rows and columns, represent the image's color and brightness information. When an image is edited at this pixel level, it is considered raster editing. This is in contrast to vector editing, which manipulates mathematical equations that define shapes and lines.

Common raster editing techniques include adjusting brightness and contrast, changing colors, sharpening or blurring the image, and applying various filters and effects. Tools like selection marquees, lasso tools, and magic wands are used to isolate specific areas of the image for modification. Painting and drawing tools, such as brushes, pencils, and erasers, allow for direct manipulation of individual pixels.

Software applications like Adobe Photoshop, GIMP, and Procreate are widely used for raster editing. These programs offer a comprehensive suite of tools and features to perform a wide range of image manipulations. Raster editing is essential for tasks such as photo retouching, digital painting, graphic design, and preparing images for print or web use. However, it's important to note that raster images can lose quality when scaled up due to the inherent nature of pixel-based representation; individual pixels become larger and more visible, leading to a blocky appearance.