[Gimp-developer] Running a batch script, failing under cron
We are running a conversion script in gimp 1.2 under RedHat Enterprise Edition 3. If we run the perl script interactively, it works. However, when run in cron, it does not, though it worked under cron on another production server running RedHat 7. It appears that the reason is that cron fails to find the script, but I cannot prove that. It simply doesn't do anything in gimp, and returns without any displayed error message. Perhaps we should be using 2.0, but installation has always been a massive headache, and we get incomplete installs due to failures in the print libraries, the only solution that I got a response about was building without printing, so I'd prefer to make this work with our existing setup, unless someone is feeling like being particularly helpful and resolving this ongoing problem with gimp builds for us. While we're at it, if you notice any massive inefficiencies in our script, I'd love to make it run faster, since it is executed 3000 times a day, soon to be 6000, then 24000. The following file is the gimp script, which works both under gimp-2.0 and gimp-1.2: (define (dl-png2transindexed2 file) (let* ( (img (car (file-png-load 1 file file) ) ) (d (car (gimp-image-active-drawable img))) ) (gimp-layer-add-alpha (car (gimp-image-get-active-layer img))) (gimp-by-color-select d '(255 255 255) 0 2 0 0 0 0) (gimp-edit-clear d) (gimp-convert-indexed img 0 0 255 0 0 ) (file-png-save 1 img d file file 0 6 0 0 0 1 1) (gimp-image-delete img) ) ) (script-fu-register dl-png2transindexed2 Toolbox/Xtns/Script-Fu/png2transindexed2 png2indexed2 Dov Kruger Elena Zagrai (c) 2004 Stevens Institute of Technology 2004-02-25 SF-FILENAME File file.png ) A test shell script that illustrates the problem with cron: #!/bin/sh echo 'foo' /usr/bin/gimp --no-splash --console-messages --no-interface -b '(dl-png2transindexed2 T26nyharaspeedtop.png)' '(gimp-quit 0)' echo bar ___ Gimp-developer mailing list Gimp-developer@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
[Gimp-developer] Re: Gimp-developer Digest, Vol 26, Issue 44
I can't subscribe so as to submit a contest entry, probably because of massive beating on the site Hopefully later on it will come back Better to just send all submissions to Sven via email ;-) ok, just a small joke. D On Tue, 2004-11-30 at 15:02, [EMAIL PROTECTED] wrote: Send Gimp-developer mailing list submissions to [EMAIL PROTECTED] To subscribe or unsubscribe via the World Wide Web, visit http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than Re: Contents of Gimp-developer digest... Today's Topics: 1. Re: 2.2 splash screen competition (David Neary) 2. Re: Re: 2.2 splash screen competition (Sven Neumann) 3. Re: Re: [Gimp-user] Re: [Gimp-announce] 2.2 splash screen competition (Carol Spears) 4. Re: Re: [Gimp-user] Re: [Gimp-announce] 2.2 splash screen competition (Manish Singh) 5. Re: 2.2 splash screen competition (David Neary) 6. Re: 2.2 splash screen competition (Manish Singh) 7. Re: 2.2 splash screen competition (David Neary) 8. Re: 2.2 splash screen competition (Manish Singh) -- Date: Tue, 30 Nov 2004 15:34:04 +0100 From: David Neary [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: [Gimp-developer] Re: 2.2 splash screen competition Message-ID: [EMAIL PROTECTED] In-Reply-To: [EMAIL PROTECTED] References: [EMAIL PROTECTED] Content-Type: text/plain; charset=iso-8859-15 MIME-Version: 1.0 Precedence: list Message: 1 Hi all, After a false start, the GIMP Splash Contest is now officially open! The contest runs until next Sunday, Midnight. Splash screens should be the same size as jimmac's logo and have a pale band across the bottom roughly the same size. Otherwise, knock yourselves out! Competition entries should be attached to the live.gnome.org wiki page at http://live.gnome.org/GnomeArt_2fGimpSplashContest - you will need to create a wiki account. We will definitely have some kind of (small) prize sponsored, details will follow during the week (but the real reason you are doing it is the glory, right?) Good luck to everyone! And don't forget, spread the news! Cheers, Dave Neary. -- David Neary, Lyon, France E-Mail: [EMAIL PROTECTED] CV: http://dneary.free.fr/CV/ -- Date: Tue, 30 Nov 2004 16:06:03 +0100 From: Sven Neumann [EMAIL PROTECTED] To: David Neary [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: [Gimp-developer] Re: 2.2 splash screen competition Message-ID: [EMAIL PROTECTED] In-Reply-To: [EMAIL PROTECTED] (David Neary's message of Tue, 30 Nov 2004 15:34:04 +0100) References: [EMAIL PROTECTED] [EMAIL PROTECTED] Content-Type: text/plain; charset=us-ascii MIME-Version: 1.0 Precedence: list Message: 2 Hi, David Neary [EMAIL PROTECTED] writes: The contest runs until next Sunday, Midnight. Splash screens should be the same size as jimmac's logo and have a pale band across the bottom roughly the same size. Otherwise, knock yourselves out! Actually, the band at the bottom doesn't necessarily have to be pale. GIMP 2.2 checks the color of the bottom area of the splash and chooses a suitable level of gray for the text overlay. The area at the bottom should however not have too much contrast or the text will become unreadable. Your best bet is that you try to use your image as a splash with a GIMP-2.2 pre-release. http://www.gimp.org/about/splash/ tells you how to do that. Sven -- Date: Tue, 30 Nov 2004 09:13:23 -0800 From: Carol Spears [EMAIL PROTECTED] To: Sven Neumann [EMAIL PROTECTED], GIMPDev [EMAIL PROTECTED] Subject: Re: [Gimp-developer] Re: [Gimp-user] Re: [Gimp-announce] 2.2 splash screen competition Message-ID: [EMAIL PROTECTED] In-Reply-To: [EMAIL PROTECTED] References: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] Content-Type: text/plain; charset=us-ascii MIME-Version: 1.0 Precedence: list Message: 3 On Tue, Nov 30, 2004 at 11:11:21AM +0100, Sven Neumann wrote: I wouldn't wait for this to happen if I was you. The news system hasn't been resurrected for several months so I am pretty sure that the contest section has a similar unsolveable problem. We should use what's available but sorry, the mailing-lists won't work. from the Changelog. 2004-11-29 Helvetix Victorinox [EMAIL PROTECTED] * Cut over to the new (old) news system. let me see if i can sum up what has happened. please correct
[Gimp-developer] Re: High-performance gimping
Thanks to all who responded with useful comments. It isn't entirely clear from the comments when gimp starts up, but the tiling cache should indeed be almost as large as physical memory, allowing some for other uses (such as the OS). Increasing to 1500Mb on a 2G system was a huge improvement. I have not sought to tune that number, not doing enough of these to make that worthwhile. The undo suggestion of Alastair Robinson is also probably very good for continued manipulation. As I think the original posting indicated, allowing virtual memory to do the work, is for whatever reason not the answer. I suggest modifying the documentation to read something like: Increasing tile memory cache will continue to yield benefits until you totally saturate physical memory. If you can afford to give nearly all your physical memory to gimp while you are running it, and you need to process large images, then do so. thanks, Dov If the OS has better virtual memory than what available to gimp, then you would want to use that one. In Linux, I think in most cases, you would want to use the (often in multiple disks) swap partitions/files available to the OS. Evidently not, as in my first post. ___ Gimp-developer mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
[Gimp-developer] comparing gimp speed
I noticed that gimp is very slow for large images compared with Photoshop. We were recently processing some 500Mb images, and on a fast machine with 2Gb, gimp is crawling along, while on a slower machine with only 512 Mb, photoshop is considerably faster. I attributed it to a massive amount of work in photoshop, using sse instructions, etc. but then noticed that the default viewer in redhat allows me to load images far faster even than adobe, and zoom in and out with the mouse wheel in realtime. Granted, because you are editing the image, not just displaying it, there has to be some slowdown, but I wondered if there is any way I can tweak gimp, do I somehow have it massively de-optimized. When I first set up gimp-2.0, I tried both 128 and 512 Mb tile cache sizes. 512 seems to work a lot better, but it's still pretty bad. Any idea as to the area of the speed advantage of Adobe? thanks, Dov ___ Gimp-developer mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
[Gimp-developer] error in code....
Based on advice from this forum, the script now reads: (define (dl-png2transindexed2 file) (let* ( (img (car (file-png-load 1 file file) ) ) (d (car (gimp-image-active-drawable img))) ) (gimp-layer-add-alpha (car (gimp-image-get-active-layer img))) (gimp-by-color-select d '(255 255 255) 0 2 0 0 0 0) (gimp-edit-clear) (gimp-convert-indexed img 0 0 255 0 0 ) (file-png-save 1 img d file file 0 6 0 0 0 1 1) ) ) This yields the following error: Error while executing (dl-png2transindexed2 /home/dkruger/dev/matlab/sdv4/longislandsaltL10T24.png) ERROR: too few arguments (see errobj) First of all, since it's probably obvious what I'm doing wrong, an answer is always appreciated, but I'd like to know if there is any mini-debugger available, or any way of seeing which line is the cause of the error. The error message says to see errorobj but I didn't see anything on the console, or a menu in the fu section that would show me the underlying cause. thanks to all! ___ Gimp-developer mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
Re: [Gimp-developer] error in script-fu code....
Carol suggested that removing the interactive flag from png-save might help. If I do that, I get an error that directly says that a parameter is missing from png-save, which is at least perfectly understandable. The script, with Carol's suggestion commented out, is below. Anyone else with an answer, or with a good way to see where bugs in fu-scripts are in general? thanks, Dov (define (dl-png2transindexed2 file) (let* ( (img (car (file-png-load 1 file file) ) ) (d (car (gimp-image-active-drawable img))) ) (gimp-layer-add-alpha (car (gimp-image-get-active-layer img))) (gimp-by-color-select d '(255 255 255) 0 2 0 0 0 0) (gimp-edit-clear) (gimp-convert-indexed img 0 0 255 0 0 ) (file-png-save 1 img d file file 0 6 0 0 0 1 1) ;(file-png-save img d file file 0 6 0 0 0 1 1) ) ) (script-fu-register dl-png2transindexed2 Toolbox/Xtns/Script-Fu/png2transindexed2 png2indexed2 Dov Kruger Elena Zagrai (c) 2004 Stevens Institute of Technology 2004-02-25 SF-FILENAME File file.png ) ___ Gimp-developer mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
[Gimp-developer] correct parameters for select-color?
As per Sven's suggestion, instead of plugin color to alpha, I want to try replacing every occurrence of white pixels with transparent. The documentation in the browser suggests something like the following: (gimp-by-color-select d '(255 255 255) 0 2 0 0 0 0) This should select color white, but I don't know how to make the selection transparent. Searching the calls in the browser for functions containing alpha and trans didn't yield anything obvious. Also, with apologies for my ignorance, Sven suggested looking at the interactive menu, but I don't understand how to select color white interactively, much less replace it. If I select menu selection-color the tool changes on the main gimp window, but I don't see a way to request color white, or make the selection, and once that's done, how do I make it transparent? I have seen functions that take the alpha layer and turn it to color, but how do I programmatically make the alpha layer? I searched for a while on color selection, but most selections out there seem to involve selecting a region and doing some photo retouching. Any pointers would be greatly appreciated. ___ Gimp-developer mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
[Gimp-developer] re: color to alpha is slow
Hello fellow gimpers, Apologies if this is not the correct group, but the users email seems geared towards people who use menus, not code. We are using gimp to batch process 3000 or so images per day generated from an oceanographic forecasting system. We need to make the background color of a 24bit png image transparent, and turn it into an 8 bit image because Internet Explorer can't handle alpha transparency evidently, more reason to use Mozilla. You might ask, why are we doing this? Answer: by pulling static background out of our maps, we achieve a massive bandwidth reduction on our forecast website, see http://onr.dl.stevens-tech.edu/webnyhos3 for the original, and http://onr.dl.stevens-tech.edu/wwwnyhos1/index3.html for the experimental transparent version. We currently execute a script-fu that turns all white pixels transparent, then turns the 24-bit-per-pixel image into indexed mode with 255 colors, setting color 0 transparent. It seems to take approximately 1 second per image, and the images are not all that big (some are as little as 15k, though the bigger maps, like Long Island, are as big as 150k). We do 100 at a time in a script, because the command line literally gets too long after a while -- we could probably increase that number to 500 or even decrease it, but the dominant factor seems to be the time it takes to do these operations. The machine is a 2.6Ghz P4 with 2Gb of RAM, the raw CPU should be capable of a lot more than this, and I allocated 500M in the gimp configuration, could some garbage collection problem be an issue? I suspect that color-to-alpha is the slow part. Is there anything we can do to speed this up, like convert the image to indexed, and just make color 0 transparent? Any help with code to programmatically make color entry n transparent would be great, we didn't find any reference to that. Oh, and to everyone who works on gimp, you guys kick serious butt! What a tool! thanks, Dov ___ Gimp-developer mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
