Lossless scaling is a way used to enlarge or cut back the dimensions of a picture with out shedding any of the unique information. That is in distinction to lossy scaling, which reduces the file dimension by eradicating among the information, leading to a decrease high quality picture. Lossless scaling is usually used for pictures that should be enlarged for printing or different functions the place top quality is vital.
Lossless scaling is achieved by utilizing algorithms that protect all the unique information within the picture. This may be finished by utilizing quite a lot of methods, similar to bicubic interpolation or Lanczos resampling. These methods work by creating new pixels which might be interpolated from the unique pixels, guaranteeing that the ensuing picture is as near the unique as doable.
