raszterkép

Raszterkép, also known as a bitmap image, is a digital image format that represents an image as a grid of pixels. Each pixel is a tiny square or dot that has a specific color value assigned to it. The arrangement of these pixels forms the overall image. Think of it like a mosaic, where each tile is a pixel and the entire mosaic is the image.

The resolution of a raszterkép is determined by the number of pixels it contains, often expressed as width x height (e.g., 1920x1080 pixels). A higher resolution means more pixels, resulting in a more detailed and sharper image, but also a larger file size. Common raszterkép file formats include JPEG, PNG, GIF, and BMP. Each format has its own characteristics regarding compression, color depth, and transparency support.

Raszterképek are created using various software applications, such as photo editors and paint programs. They are widely used for photographs, digital art, and web graphics. However, when raszterképek are scaled up beyond their original resolution, the pixels become visible, leading to a loss of quality and a blocky appearance. This is a key difference compared to vector graphics, which are based on mathematical equations and can be scaled infinitely without losing quality.