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[REBOL] PNG => was Re: Re: Image processing and embedding metadata in images?

From: jasonic:panix at: 12-Nov-2001 20:20

> hmmm PNG maybe the best REBOL bet. For example storing stuff in a named > layer..
bingo! http://www.libpng.org/pub/png/spec/PNG-Chunks.html#C.Anc-text <quote> 4.2.3. Textual information The iTXt, tEXt, and zTXt chunks are used for conveying textual information associated with the image. This specification refers to them generically as text chunks . Each of the text chunks contains as its first field a keyword that indicates the type of information represented by the text string. The following keywords are predefined and should be used where appropriate: Title Short (one line) title or caption for image Author Name of image's creator Description Description of image (possibly long) Copyright Copyright notice Creation Time Time of original image creation Software Software used to create the image Disclaimer Legal disclaimer Warning Warning of nature of content Source Device used to create the image Comment Miscellaneous comment; conversion from GIF comment </quote> Any REBOL scripts out there for browsing/editing PNG binary data? - Jason