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  1.  Home
  2. RPG400-L
  3. April 2005

Re: Extracting Exif data and thumbnails from image files

Rob Dixon wrote:
> Thanks to some help given to me some time ago, I can read the IFS with
> RPG and display JPG and GIF images sizes for each file.  I would also
> like to display the thumbnails when over a browser.  Can someone please
> tell where to find the layout of the various image files and also how to
> retrieve the thumbnail .

Information about exif can be found at http://www.exif.org.

Thumbnails can't be 'extracted', as far as I know ... you have to create
your own smaller sized version of the image.   I'm not sure you could do
it easily in RPG, although I suspect there are a number of C libraries
you could investigate porting that should be easy enough to call or bind.

david


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