Re: EXIF support in PNG
Willem van Schaik <[email protected]>
| Newsgroups | gmane.comp.graphics.png.general |
|---|---|
| Message-ID | <[email protected]> |
folks, didn't see any responses on two issues I raised yesterday (or did I miss it somehow ?) #1 - we have to solve this!! looking at the EXIF metadata in eog, I noticed that one of the markers is "Compression" so maybe is a need for a change in the EXIF standard, namely to add "PNG Compression" (I'm talking here about the main picture, not the thumbnail) it is probably tag #103 on page 28 of the JEITA/CIPA spec - or is that only for the thumbnail, anyway when the mail image is stored as PNG instead of JPEG, that must be reflected in the EXIF data #2 - of lesser importance we could always request the CIPA folks to add in the EXIF standard PNG as a fourth compression method for thumbnails; which wouldn't require any change to the PNG standard, because from a PNG perspective we consider the EXIF chunk a "black box" Willem -- Willem van Schaik <[email protected]> http://www.schaik.com/ ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot