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.
ARW is an uncompressed file format with a digital image of a sufficiently large size, which Sony has created and successfully uses for raw images of its own digital cameras (Sony Digital Camera Raw Image). That is, files of this format are RAW. To open them, you need to use special graphics programs. Any ARW file has a set of basic information. 1) Information from the manufacturer. This includes information about the camera model, filters, lens, sensitivity, color space, white balance, etc. 2) EXIF information. Details of aperture, exposure time, flash, and more. 3) Thumbnail image. Usually about 12 MPx, color, compression. 4) Full-size image with a large color depth. Typically, 12 bits per pixel, or 4096 brightness levels. A full-sized image can be saved as information about different colors. Red, blue, green. The image is collected, and the result is a color photo. Due to this and due to the large color depth of RAW, this type of file is perfect for processing graphics. Better than jpg. The format provides the ability to save many details. It has more options for adjusting color, restoring details from shadows and reducing noise.