gridding artifacts

Gridding artifacts are visual distortions that can occur in digital images when they are resized or stretched beyond their original dimensions. These artifacts are caused by the algorithm used to resample the image, which creates new pixels to fill in the gaps between the original pixels. The resulting grid of new pixels can create a pattern of lines or blocks that distort the image and reduce its quality. Gridding artifacts can also occur in printing or reproduction processes, where the dots or pixels used to create the image become visible and create a grid-like pattern. To minimize gridding artifacts, it is important to use high-quality image files and to avoid resizing or stretching images beyond their original dimensions whenever possible.