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.
DCR is a graphic format for bitmap images. DCR, or Kodak RAW Image File, is a Kodak format RAW file. Files of this type are usually used in digital SLR cameras in order to take photographs and at the same time not to compress or adjust the color. The format was developed by Kodak, whose specialization is in the manufacture of photographic equipment. Kodak RAW Image File, like other graphic RAW formats, is primarily designed to store digital images in an uncompressed and unprocessed form. In this case, they can be edited more accurately. They are stored on a computer so that later the photos can be edited more accurately compared to JPEG images. After processing on the computer, the DCR file can be converted to any popular format. Say in JPEG. DCR images are capable of storing data without compression. They do not include default colors and color correction. And this is inherent in a JPEG image. The main advantage in using this RAW format is that you can have better image quality if digital post-processing is performed. To make the details more visible, and the shapes more defined, you need to reduce noise and better balance the white color.