Rastriformaattien

Rastriformaattien, also known as raster formats, are digital image file formats that store images as a grid of pixels. Each pixel in a raster image represents a small square of color, and the combination of these pixels creates the image. Raster formats are widely used in various applications, including graphic design, photography, and web development. Some of the most common raster file formats include JPEG, PNG, GIF, and TIFF.

JPEG (Joint Photographic Experts Group) is a popular raster format known for its efficient compression, which reduces file size while maintaining image quality. It is commonly used for photographs and web graphics. PNG (Portable Network Graphics) is another widely used raster format that supports lossless compression and transparency. It is often used for images that require high quality and transparency, such as logos and icons. GIF (Graphics Interchange Format) is a raster format that supports animation and is commonly used for simple animations and graphics on the web. TIFF (Tagged Image File Format) is a versatile raster format that supports high-quality images and is often used in professional photography and printing.

Raster images are resolution-dependent, meaning that their quality can degrade when scaled up or down. This is because each pixel in a raster image is a fixed size, and scaling the image changes the number of pixels that make up the image. In contrast, vector images, which store images as mathematical equations, are resolution-independent and can be scaled without losing quality.

Raster formats are supported by a wide range of software applications, including Adobe Photoshop, GIMP, and web browsers. They are also widely used in digital cameras, scanners, and other imaging devices. Overall, raster formats are an essential part of digital imaging and are used in a variety of applications and industries.