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Date Posted: 21:28:13 04/20/03 Sun
Author: Michel
Subject: Re: TIFF L*a*b and color images
In reply to: glup 's message, "TIFF L*a*b and color images" on 08:26:44 04/19/03 Sat

Hi Glup,

This will be quite difficult. Envision saves the TDibGraphic with a "common structure", and only saves the tags it supports.

The only way would be to bypass TTiffGraphic, and use the LibTiff API directly. EnTifGr.Pas is a starting point, but you should really check out the www.libtiff.org documentation.

Best regards,


>I have to modify existing tiff images by batch. Some
>of them use L*a*b or CMYK. If I do do the small
>modification and store the modified image I have not
>found a way store the image in the original format.
>Also I have made actually a copy where some strage
>tiff-tags or even image masks got lost.
>How could I avoid the lost of tags and image masks?
>How could I avoid any color model modification during
>my image manipulation?

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