JPS is a bitmap category category format. Its developer is the Joint Photographic Experts Group. A raster stereoscopic JPEG image is stored in a file with a .jps extension. It is this image that is used to create 3D effects from a 2D image. In order to obtain a stereoscopic effect, apply a pair of static images of the same size for the right and left eye. They are nearby. Stored as a single image. Differ from each other, but slightly. They, in particular, have a slightly changed perspective. There are other effects. In other words, this is a pair of copies of the same image. Moreover, each of them is slightly different. Including a different angle. Images with the .jps extension are made and stored using a stereo camera, which should have at least two lenses. Such an image is viewed in several ways. Say, using special devices that provide the opportunity for each eye to see its picture. Hence the effect of volumetric image. In particular, when you overlay pictures on top of each other, then you take 3D glasses. JPS files can also be viewed using programs that can convert a pair of 2D images into one 3D image.
MNG is an image file category format. It supports all possible PNG and JPEG compression algorithms (including gamma correction and translucency) in order to create animated images. It was available in the Mozilla browser from 2000 to 2003. Now supported by Konqueror browser. MNG, i.e. Multiple-image Network Graphics, has the closest connection with PNG. In 1995, when they started developing the PNG format, it was decided not to include animation support. For a simple reason: then this feature was used infrequently. And yet, we started working on MNG, that is, the version of PNG that supports animation. The initial version of the MNG specification was born in early 2001. The MNG format is a simplified raster analogue of Adobe Flash. Each frame has many layers, and they can be moved relative to each other, scaled, cropped. This explains the complexity of supporting the MNG format. As a result, the MNG file structure resembles the PNG structure. The only difference is the identification tag. And also that much more options of blocks (chunk) are applied. MNG frames are saved as PNG or JNG. Compared to GIF, this format supports animation. Compared to JPEG, it provides the smallest file size due to compression loss. Compared to PNG, compression is done without distortion. Now MNG is not supported by popular browsers and software, since it was replaced by a simpler APNG format.