2005.01.21 20:02 "Re: [Tiff] deleting tags!", by Frank Warmerdam

ps. what exactly do we lose with tiffcp? I found one way of "deleting" a tag - tiffcp will fail to copy a tag if it has an illegal value for its value (or values, I think it was the number of values that it takes, or size of the value, I forget, anyway we had dateTimes that had 25 whatevers and should only have 20, the tag was present before setting another tag, and absent after...)

Antoine,

As to what we lose with tiffcp, I can't give a precise answer. But there are esoteric tags not addressed in the list processed by tiffcp. Also, tiffcp unpacks and repacks the imagery and as far as I know this could lose (or correct) some quirks of the original image.

Best regards,

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