JPF is a raster image category file format that is the successor to the .JPEG image format. Like some other file name extensions (.jpx, .jp2, .j2k), the .jpf extension refers to the JPEG 2000 image format. It is needed to designate the JPEG 2000 Image file type. And JPEG 2000 files are an international standard (ISO / IEC 15444) bitmap format. It was developed by the Joint Photographic Experts Group, JPEG. It serves as a good replacement for the JPEG standard, which is older, but, as before, is in demand and widespread. Compared to JPEG in JPF format, wavelet compression is used, due to the alpha channel transparency is supported, as well as a variety of color models. Also, compared to JPEG, this format provides better scalability of images, provides the ability to achieve smaller file sizes and have a higher level of quality. The format is able to combine compression with losses and without losses. Provides support for image transparency and additional metadata information. It can be viewed in QuickTime Player 7, as in recent versions of Photoshop, provided that the JPEG2000.8bi plugin is installed. Many images also have the extension .JP2 or .JPX.
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.