The format has a TIFF-image structure. It is generated by Canon cameras. The CR2 photo is stored in an uncompressed form and allows you to edit such settings as white balance, exposure, and other settings for photos that were already taken. It is the successor format to CRW, which was used in previous generation Canon SLR cameras.
This is a color system for displaying image and video files. The luminance component (Y) in UYVY is digitized at each point, whereas the color difference components (U, V) are digitized two times less frequently. It has a 16 bits/pixel structure, and it is used in video rendering and image editors.