resizing artifacts
Artifacts that appears when resizing an image to make it larger.
This usually appears as a mosaic effect over the whole picture or as jagged edges (nearest-point resampling) or as a blurred version of the above (bilinear and bicubic resampling).
Pixel Art resized with nearest-point resampling is usually common practice as pixel art images are usually relatively small.
See also
The following tags are aliased to this tag: resampling_artifacts (learn more).