Rastervormaatide

Rastervormaatide, also known as raster formats, are digital image file formats that store image data as a grid of pixels. Each pixel in a raster image contains information about its color and position. Raster images are commonly used in graphic design, photography, and digital art due to their ability to represent complex images with high detail and color accuracy. Some popular raster formats include JPEG, PNG, and GIF.

JPEG (Joint Photographic Experts Group) is a widely used format for compressing photographic images. It uses lossy compression, which means that some image data is discarded to reduce file size, resulting in a slight loss of quality. JPEG is ideal for photographs and other images with smooth color transitions.

PNG (Portable Network Graphics) is a lossless compression format that supports transparency. It is commonly used for images with sharp edges and text, as it preserves image quality without any loss of data. PNG is also suitable for web graphics due to its efficient compression and support for transparency.

GIF (Graphics Interchange Format) is a format that supports both lossless compression and animation. It is limited to 256 colors, making it less suitable for photographs but ideal for simple graphics, icons, and animations. GIFs are widely used on the web for their small file sizes and support for animation.

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 represents a specific point in the image, and resizing can cause pixelation or loss of detail. To maintain image quality, raster images should be used at their original resolution or resized using high-quality algorithms.

In contrast to raster images, vector images store image data as mathematical equations that describe shapes and lines. Vector images are resolution-independent, meaning that they can be scaled up or down without any loss of quality. Vector formats, such as SVG (Scalable Vector Graphics), are commonly used in graphic design for logos, icons, and illustrations.