Re: cvs: php4 /ext/exif config.m4

At 09:30 29.08.2002, derick@php.net wrote:

On Thu, 29 Aug 2002, Marcus Börger wrote: Generated by digital cameras. From http://www.ba.wakwak.com/~tsuruzoh/Computer/Digicams/exif-e.html:

        What is Exif file format?

        Basically, Exif file format is the same as JPEG file format. Exif
        inserts some of image/digicam information data and thumbnail image to
        JPEG in conformity to JPEG specification.

EXIF Standard covers some special TIFF Tags and the integration of a TIFF header into APP13 section of a JPEG image. Yes TIFF headers could be written by any kind of image processing software. And Yes, Exif can read any kind of meta data stored in either JPEG or TIFF. But EXIF is a standard created by digital camera companys to simplify post processing of images created by digital cameras...e.g. making printouts from digital cameras as best as can! From exif.org EXIF.org is a site dedicated to EXIF and related resources. EXIF stands for Exchangeable Image File Format, and is a standard for storing interchange information in image files, especially those using JPEG compression. Most digital cameras now use the EXIF format. The format is part of the DCF standard created by JEIDA to encourage interoperability between imaging devices. Additional important readings: EXIF2.2: http://tsc.jeita.or.jp/avs/data/cp3451.pdf TIFF6.0: http://partners.adobe.com/asn/developer/PDFS/TN/TIFF6.pdf What worth is a discussion on cvs list?