Re: [Gimp-user] GIMP throwing away TIFF tags
Hi, On Mon, 2007-02-12 at 12:52 +0200, Paul Surgeon wrote: I have to touch up hundreds of aerial photos and it's a PITA to have to save and then reapply the projection every time I save an image in GIMP. We would accept a patch that changes the TIFF plug-in so that geographic tags are attached to the image and saved with the TIFF file when it is saved again. As long as this patch makes sure that GIMP doesn't alter any information that is stored in these tags, that should be fine. Sven ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] GIMP throwing away TIFF tags
scott s. wrote: Paul Surgeon wrote: Ok so let's throw the tags away. Is there anyway to get GIMP to use libgeotiff instead of libtiff? libgeotiff is built on top of libtiff. I have to touch up hundreds of aerial photos and it's a PITA to have to save and then reapply the projection every time I save an image in GIMP. Avenza Systems sell a Photoshop CS plugin called Geographic Imager that handles GIS formats but it also does far more than what I need and am willing to pay for ($600). I also wish there was an option to keep Geotiff tags in images. At least the current version of GIMP I use only raises 3 errors, vs the many errors I got in the past. IIRC the last time I asked about it I was told to write my own plugin. scott s. . ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user Maybe 'listgeo' http://www.remotesensing.org/geotiff/listgeo.html could help you on that. Found it via Google. Claus -- Home Page: http://home.arcor.de/ccyrny/ (Photographs) Blog: http://grafomatic.twoday.net (in German) Djangology http://home.arcor.de/ccyrny/djangology/ (my Django Reinhardt site; in German) ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] GIMP throwing away TIFF tags
Paul Surgeon wrote: Is there some way to tell GIMP to preserve TIFF tags even if they're not known? If not can I file this as a bug? Tags shouldn't just be thrown away. Paul Hi Paul, To complement Sven's reply, I would just add that the TIFF specification, section 7, page 26, recommends that TIFF editors (applications that modify TIFF files) discards tags/fields/IFD they do not understand. To be more precise, the wording is: It is unnecessary—and possibly dangerous—for an editor to copy fields it does not understand because the editor might alter the file in a way that is incompatible with the unknown fields. Best regards, Olivier ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] GIMP throwing away TIFF tags
On Monday 12 February 2007 10:36, Olivier Ripoll wrote: To complement Sven's reply, I would just add that the TIFF specification, section 7, page 26, recommends that TIFF editors (applications that modify TIFF files) discards tags/fields/IFD they do not understand. To be more precise, the wording is: It is unnecessary—and possibly dangerous—for an editor to copy fields it does not understand because the editor might alter the file in a way that is incompatible with the unknown fields. Best regards, Olivier Ok so let's throw the tags away. Is there anyway to get GIMP to use libgeotiff instead of libtiff? libgeotiff is built on top of libtiff. I have to touch up hundreds of aerial photos and it's a PITA to have to save and then reapply the projection every time I save an image in GIMP. Avenza Systems sell a Photoshop CS plugin called Geographic Imager that handles GIS formats but it also does far more than what I need and am willing to pay for ($600). Paul ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] GIMP throwing away TIFF tags
Paul Surgeon wrote: Ok so let's throw the tags away. Is there anyway to get GIMP to use libgeotiff instead of libtiff? libgeotiff is built on top of libtiff. I have to touch up hundreds of aerial photos and it's a PITA to have to save and then reapply the projection every time I save an image in GIMP. Avenza Systems sell a Photoshop CS plugin called Geographic Imager that handles GIS formats but it also does far more than what I need and am willing to pay for ($600). I also wish there was an option to keep Geotiff tags in images. At least the current version of GIMP I use only raises 3 errors, vs the many errors I got in the past. IIRC the last time I asked about it I was told to write my own plugin. scott s. . ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] GIMP throwing away TIFF tags
Is there some way to tell GIMP to preserve TIFF tags even if they're not known? If not can I file this as a bug? Tags shouldn't just be thrown away. Paul ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] GIMP throwing away TIFF tags
Hi, On Sun, 2007-02-11 at 20:47 +0200, Paul Surgeon wrote: Is there some way to tell GIMP to preserve TIFF tags even if they're not known? If not can I file this as a bug? Tags shouldn't just be thrown away. Who says so? Can you point me to the part of the TIFF spec that defines how unsupported tags are supposed to be handled? Sven ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
