Raster graphics editor

A raster graphics editor (also called bitmap graphics editor) is a computer program that allows users to create and edit images interactively on the computer screen and save them in one of many raster graphics file formats (also known as bitmap images) such as JPEG, PNG, and GIF.

Comparison to vector graphic editors

Vector graphics editors are often contrasted with raster graphics editors, yet their capabilities complement each other. The technical difference between vector and raster editors stem from the difference between vector and raster images. Vector graphics are created mathematically, using geometric formulas. Each element is created and manipulated numerically; essentially using Cartesian coordinates for the placement of key points, and then a mathematical algorithm to connect the dots and define the colors.

Raster images include digital photos. A raster image is made up of rows and columns of dots, called pixels,^[1]^[2] and is generally more photo-realistic. This is the standard form for digital cameras; whether it be a .raw file or .jpg file, the concept is the same. The image is represented pixel by pixel, like a microscopic jigsaw puzzle.

Vector editors tend to be better suited for graphic design, page layout, typography, logos, sharp-edged artistic illustrations, e.g., cartoons, clip art, complex geometric patterns, technical illustrations, diagramming and flowcharting.

Advanced raster editors, like GIMP and Adobe Photoshop, use vector methods (mathematics) for general layout and elements such as text, but are equipped to deal with raster images down to the pixel and often have special capabilities in doing so, such as brightness/contrast, and even adding "lighting" to a raster image or photograph.

Popular editors

Adobe Photoshop: Industry standard for photography, design, and digital art
GIMP: Free, open-source alternative with similar features to Photoshop
Corel Painter: Focuses on digital painting with traditional art simulation
Affinity Photo: Professional-grade tools with a one-time purchase model
Procreate(iOS): Popular app for digital painting on iPad

Common features

Select a region for editing
Draw lines with simulated brushes of different color, size, shape and pressure
Fill a region with a single color, gradient of colors, or a texture
Select a color using different color models, e.g., RGB, HSV, or by using a color dropper
Edit and convert between various color models.
Add typed letters in various font styles
Remove imperfections from photo images
Composite editing using layers
Apply filters for effects including sharpening and blurring
Convert between various image file formats

References

^ "Raster image". MDN Web Docs. Retrieved 2024-02-01. 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.
^ "GIMP 2.10 User Manual". GIMP Documentation. Retrieved 2024-02-01. 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

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External links

Media related to Raster graphics software at Wikimedia Commons

^ "Clipp Out Line". Has been an experienced Photo editing service provider company since 2010. They have a bunch of professional editors to make a photo pixel-perfect.

[mdn24-1] "Raster image". MDN Web Docs. Retrieved 2024-02-01. 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.

[gimp24-2] "GIMP 2.10 User Manual". GIMP Documentation. Retrieved 2024-02-01. 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

[G_Sham-3] "Clipp Out Line". Has been an experienced Photo editing service provider company since 2010. They have a bunch of professional editors to make a photo pixel-perfect.

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