JPE is the graphic format of the raster image category. It was developed by the standards committee of the Joint Photographic Experts Group. It is a 24-bit compressed graphics format. Typically, it is used for web resources. In most cases, it is used for photographs or images in which there are many colors. Also well suited for many digital cameras to store digital photos. Images that have this extension use lossy compression. And because the quality of individual photos is getting worse. The greater the compression, the less quality the image becomes. The purpose of JPE files is to compress photorealistic images with small color losses. Provides the ability to achieve high compression ratios. We emphasize that usually the maximum compression of graphic information leads to some loss of information. That is, the compression algorithm changes the original data so that the image that is obtained after restoration will be different from the original image, that is, compressed. This compression method is used to work with full-color images that have high photographic quality. During compression, the Discrete-Cosine Transform (DCT), Huffman’s Code quantization and coding are used.
JPT is a file extension belonging to the JPEG 2000 bitmap file category (versions .jp2, .j2k, .jpt and others) and the JPEG 2000 file format. JPEG 2000 format is defined as a system for encoding and transmitting graphic raster files. It was developed by the Joint Photographic Experts Group (JPEG). It is approved by a series of ISO / ITU standards. The JPEG 2000 standard, which was designed from the very beginning to replace traditional JPEG, applies wavelet compression with and without loss. It gives an increased compression ratio and surpasses JPEG by all standards. The standard method for designating JPEG 2000 files is the .jp2 extension. However, other extensions are also used for this. In particular, .jpt. A .jpt file is a JPEG 2000 compressed image. It is saved in the JPT codestream version, where the name means “JPIP Tile-part”. This is a segmented part of JPIP, or the JPEG 2000 interactive protocol. This is the standard JPEG 2000 image streaming protocol. It is oriented to get maximum efficiency and quick access to graphic data. JPT is one of two standard streaming modes. The second mode is called JPP, JPIP Precinct.