Re: EXIF support in PNG
John Bowler <[email protected]>
| Newsgroups | gmane.comp.graphics.png.general |
|---|---|
| Message-ID | <CAP7U3982-qnXvkq=Ba9oW0D-4pDD2-6ObDo1HCV3e0_UfcM7wA@mail.gmail.com> |
Herewith a revised specification correcting typos: ================================================================ > PNG CHUNK PROPOSAL: eXIf > > SPECIFICATION > ============= > > The four-byte chunk type field contains the decimal values > > 101 88 73 102 > > The eXIF chunk contains EXIF metadata with a length given by the chunk < ^^^^ eXIf > length. Such data shall be compatible with specifications issued by > CIPA, "Exchangeable image file format for digital still cameras" [CIPA > DC-008-2016] or its successors. > > At most one eXIF chunk shall occur in a PNG stream. The chunk has no < ^^^^^^^^^^^ eXIf > chunk-specific positioning requirements; it may appear before or after > the IDAT chunks. > ================================================================ -- John Bowler <[email protected]> +1 (541) 450-9885 PO BOX 3151 KERBY OR 97531-3151 USA ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ png-mng-misc mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/png-mng-misc
20170104 eXIf.txt
(text/plain, 545 B)
PNG CHUNK PROPOSAL: eXIf SPECIFICATION ============= The four-byte chunk type field contains the decimal values 101 88 73 102 The eXIf chunk contains EXIF metadata with a length given by the chunk length. Such data shall be compatible with specifications issued by CIPA, "Exchangeable image file format for digital still cameras" [CIPA DC-008-2016] or its successors. At most one eXIf chunk shall occur in a PNG stream. The chunk has no chunk-specific positioning requirements; it may appear before or after the IDAT chunks.