Design rule for Camera File system
Design rule for Camera File system (abbreviated to DCF ) is a file system standard of the Japan Electronics and Information Technology Industries Association ( JEITA ) that is implemented by digital cameras across platforms and manufacturers . The specification defines special directory structures , file names , character sets , file formats and metadata formats . So must DCF files metadata in standard format Exif and a 160 by 120 pixel measuring JPEG include a thumbnail -Vorschaubild.
The main directory of the file system in a DCF-compliant digital camera contains a folder DCIM(Digital Camera Images). This may contain several subdirectories in which the actual images are saved. The names of the directories must follow the pattern “three digits followed by any five characters” (e.g. 100_PANA). Each directory must have a different number. Usually the lists are numbered (z. B. 100_PANA, 101_PANA, 102_PANAetc.).
The following rules apply to the file names. They consist of eight characters, the first four are alphanumeric characters, usually "DSC_" or "DSC0". This is followed by a four-digit number with leading zeros, followed by the three-letter file type separated by a period. From the definition DCF 2.0, the color space is encoded in the first four characters, currently only sRGB or Adobe RGB. sRGB images begin with any alphanumeric character, images in Adobe RGB begin with an underscore (“_”), so that the first four characters are typically “_DSC”.
See also
Web links
- galupki: DCF - DCIM - DPOF - FILESYSTEM - MEMORY CARDS
- DCF Version 2.0 (Edition 2010) (English)
- Official JEITA DCF Standard Page (English)
- Version 1.0 Specification at exif.org (English; PDF; 146 kB)