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.
JXR is a raster image category file format whose full name is JPEG XR Image. JXR files were created so that you can support better compression and also become more accurate than .JPG files. The development of the image, which is stored in JPEG XR format, has been handled by Microsoft from the very beginning for its Windows Media program. Implements support for images with a color depth of 48 bits of RGB. Used when professional high-resolution image editing is required. Also provides lossy and lossless compression support. JPEG XR, formerly called HD Photo and Windows Media Photo, is an encoding standard. This is the file format for still images. It was patented by Microsoft. This standard supports Windows Vista, like any operating system on which the .NET Framework 3.0 is installed. It defines color formats for printing and displaying. It also defines special encoding in order to expand the dynamic range, lossless and lossy compression functions, as well as efficient decoding for many resolutions with minimal computer resources in order to convert or decode. JPEG XR is inherently high performance. For example, with 85% quality, there are practically no artifacts.