Re: [Gimp-user] Layered TIFF
Hello Daniel, thanks for your reply, which I somehow managed to miss before. There are lots of plugins in python, but I don't know if it's the best choice for file i/o plugins, since if you do a good job, it might be included into GIMP by default, and Python isn't installed everywhere. I'm not sure about the speed difference compared to C since reading/writing the file should be the bottle neck in most cases. Michael also pointed out that existing TIFF plugins are in C. So I'll also be looking for a good, free C compiler for windows (XP). Do you know of any? > 2) I'd need to learn about the TIFF format. Again, shouldn't be a problem; > I've recently downloaded the definition from Adobe's site. Again, just a > matter of getting round to it :-) And/or have a look at other open source projects (with a compatible license!) that can handle multi-layer tiff images. (ImageJ, possibly ImageMagick, exiv2 etc.) An excellent suggestion - thanks! I'll try to find some. Thanks for you trying this project :-) Daniel Well, I haven't, yet! It'll be some time - like I said before, don't hold your breath! :-) ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF
Thanks for the info, Michael! I'll start checking out those sites. /Gary ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF
Gary Collins wrote: > 1) I'd like to try to do this in python. But I'll need to learn it > first. That shouldn't be a problem, I have the info, just a matter > of getting round to it. But I'd like to ask: is that the best thing > to use for writing a plug-in? Or at least, an acceptable thing? I > want to learn python sometime in any case as it seems to be used > rather widely for add-ons to various packages, eg "blender". The existing TIFF plug-ins are written in C. http://git.gnome.org/cgit/gimp/tree/plug-ins/common/file-tiff-save.c will be most important one. > 2) I'd need to learn about the TIFF format. Again, shouldn't be a > problem; I've recently downloaded the definition from Adobe's site. > Again, just a matter of getting round to it :-) You should read about libtiff in particular: http://www.libtiff.org/libtiff.html > 3) What I will need is specific information about writing for the > gimp interface - details about how the layers would be accessed, > etc. I'm not sure where would be the best place to look for > information like this. Other plug-ins that are accessing layers. > And maybe this list won't be the best place for techie questions if I > do get started - maybe there's a more suitable list (?) The gimp-developer list. HTH, Michael -- GIMP > http://www.gimp.org | IRC: irc://irc.gimp.org/gimp Wiki > http://wiki.gimp.org | .de: http://gimpforum.de Plug-ins > http://registry.gimp.org | ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF
Hello Gary, On Saturday 29 August 2009, Gary Collins wrote: > 1) I'd like to try to do this in python. But I'll need to learn it first. > That shouldn't be a problem, I have the info, just a matter of getting > round to it. But I'd like to ask: is that the best thing to use for writing > a plug-in? Or at least, an acceptable thing? I want to learn python > sometime in any case as it seems to be used rather widely for add-ons to > various packages, eg "blender". There are lots of plugins in python, but I don't know if it's the best choice for file i/o plugins, since if you do a good job, it might be included into GIMP by default, and Python isn't installed everywhere. I'm not sure about the speed difference compared to C since reading/writing the file should be the bottle neck in most cases. > 2) I'd need to learn about the TIFF format. Again, shouldn't be a problem; > I've recently downloaded the definition from Adobe's site. Again, just a > matter of getting round to it :-) And/or have a look at other open source projects (with a compatible license!) that can handle multi-layer tiff images. (ImageJ, possibly ImageMagick, exiv2 etc.) > 3) What I will need is specific information about writing for the gimp > interface - details about how the layers would be accessed, etc. I'm not > sure where would be the best place to look for information like this. And > maybe this list won't be the best place for techie questions if I do get > started - maybe there's a more suitable list (?) gimp-develo...@lists.xcf.berkeley.edu Thanks for you trying this project :-) Daniel signature.asc Description: This is a digitally signed message part. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF?
Claus Cyrny wrote: > > You may want to try this TIFF specific mailing list: > > http://lists.maptools.org/mailman/listinfo/tiff > > Maybe you can get a hint there on how to go about converting > your images. > This discussion of saving text layer as a layer in TIFF too (not only layered TIFF) might also be helpful reference: http://www.asmail.be/msg0054984065.html ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF?
Gary Collins wrote: > For me, one of the greatest hindrances to migrating to GIMP is its > inability to handle layered TIFF files. I have a large number of such > files, with zip compression, and I really don't wan't to have to > change this format, because for one thing my preferred picture viewer > can handle layered TIFF files but can't handle GIMP format (at least, > not yet. I have put in a request to the author and it is possible that > in future this capability may be added) and for another thing, TIFF > with zip compression seems to provide the most compact lossless format > for layered files. Any chance that the ability to load/save layered > TIFF files (with zip compression) might appear in a future version of > GIMP? I tried various methods to convert a multi-layered TIFF I created using Krita, but none of those would open in Gimp. I actually converted the TIFF to PSD using ImageMagick, but Gimp complained about an unknown compression type in layers. You may want to try this TIFF specific mailing list: http://lists.maptools.org/mailman/listinfo/tiff Maybe you can get a hint there on how to go about converting your images. HTH, Claus -- .:: Claus Cyrny - Webdesign | Grafik | Fotografie ::. :: Website: http://home.arcor.de/ccyrny/ ::. :: Blog: http://grafomatic30.twoday.net/ ::. :: Photo.net: http://photo.net/photodb/slideshow?folder_id=714471 ::. :: Saatchi Online: http://www.saatchi-gallery.co.uk/yourgallery/artist_profile//105735.html ::. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF?
Michael Schumacher wrote: Gary Collins wrote: Any chance that the ability to load/save layered TIFF files (with zip compression) might appear in a future version of GIMP? Loading works. For saving, have a look at http://bugzilla.gnome.org/show_bug.cgi?id=335975 Basically the tiff plug-in is waiting for someone to add this. Maybe you do want to have a try? Regards, Michael Hi, I've been using GIMP in Windows XP for few years(starting with 2.2, now using 2.6), but I always got tiff flattened on load, no matter what settings were used in Photoshop (Elements 2, CS 2-4). Is it Photoshop's fault? Best regards, Matt ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF?
Gary Collins wrote: > Any chance that the ability to load/save layered TIFF files (with zip > compression) might appear in a future version of GIMP? Loading works. For saving, have a look at http://bugzilla.gnome.org/show_bug.cgi?id=335975 Basically the tiff plug-in is waiting for someone to add this. Maybe you do want to have a try? Regards, Michael -- GIMP > http://www.gimp.org | IRC: irc://irc.gimp.org/gimp Wiki > http://wiki.gimp.org | .de: http://gimpforum.de Plug-ins > http://registry.gimp.org | ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
