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Removing datetime from digital photo using imagemagick
Posted: 2008-07-14T13:12:44-07:00
by xhe
When reading the use instruction, I am very interested in removing the datetime from a digital photo. I only found command
identify -format "%[EXIF:*]" pagoda_sm.jpg | column -c 110
to list all the embedded information for an image, but I can not find any command to remove the datetime from the photo.
Can anyone show me the command to remove the datetime from a digital photo?
Thanks very much in advance.
Re: Removing datetime from digital photo using imagemagick
Posted: 2008-07-14T14:12:45-07:00
by fmw42
Re: Removing datetime from digital photo using imagemagick
Posted: 2008-07-14T17:04:19-07:00
by anthony
That would only read the date time, not modify it.
You can
-strip it but for modification I suggest a more specialized progrma such as
jhead
See IM examples, Photos
http://imagemagick.org/Usage/photos/
Re: Removing datetime from digital photo using imagemagick
Posted: 2008-07-14T17:18:46-07:00
by xhe
I used this commend:
convert image1.jpg -strip output.jpg
But on the output image, the date time is still there. Any suggestion?
Re: Removing datetime from digital photo using imagemagick
Posted: 2008-07-14T17:27:37-07:00
by xhe
I just found that using -strip can strip all the information from the image, but unfortunately, for the jpeg photo, if the date-time is already on it, it won't be removable, is this true?
Re: Removing datetime from digital photo using imagemagick
Posted: 2008-07-14T18:19:20-07:00
by anthony
Hold everything.... stop the presses.... Lets take this back to square one!!!
Where exactly is the date-time!!!!!
Is it drawn on the photo itself???? If so that is a whole different
problem that what we think you are requesting!!!!!
Unfortunately it is also a problem that requires you to replace missing information, which is a very advanced problem, and one currently beyond the capabilities of IM.
However a program that is using leading edge research, has been developed that can remove and fill in the missing data quite well from the surrounding image. I tried to find it again, but don't have a bookmark, or remember the name. sorry.
Perhaps someone else here will know.
Re: Removing datetime from digital photo using imagemagick
Posted: 2008-07-14T23:50:30-07:00
by fmw42
Anthony,
Perhaps you are thinking of GREYCstoration.
See the inpainting example near the bottom:
http://www.fmwconcepts.com/misc_tests/G ... index.html
Fred
Re: Removing datetime from digital photo using imagemagick
Posted: 2008-07-15T17:38:35-07:00
by anthony
Something like that. But GREYCstoration only works for a regular feature.
No the one I saw show a photo of a bird in a cage. the cage was masked and then removed, and the bird was left without a foreground cage. In fact as the bird was hanging onto the front bars of the cage, the bird was left hanging in mid-air!!!
I just can't seem to find it any more.
Re: Removing datetime from digital photo using imagemagick
Posted: 2008-07-15T19:39:55-07:00
by fmw42
Anthony,
It is GREYCstoration. See the parrot example under inpainting:
http://cimg.sourceforge.net/greycstorat ... tion.shtml
Fred