Lossless scaling is a technique used to enlarge or reduce the size of an image without losing any of the original data. This is in contrast to lossy scaling, which reduces the file size by removing some of the data, resulting in a lower quality image. Lossless scaling is often used for images that need to be enlarged for printing or other purposes where high quality is important.
Lossless scaling is achieved by using algorithms that preserve all of the original data in the image. This can be done by using a variety of techniques, such as bicubic interpolation or Lanczos resampling. These techniques work by creating new pixels that are interpolated from the original pixels, ensuring that the resulting image is as close to the original as possible.
