[Gimp-user] scripting
Is it in the plan to remove the scheme scripting in Gimp and go to all Python scripting? Is there much of a difference between what can be done with either? I have tried a couple of times to learn Python, but I am an old fogy and keep coming up against a wall whenever I try to get my head around the whole object oriented programming thing (yes, I know, Python can do procedural just fine...but it seems like OOP is a sort of central concept to a lot of what python is capable of..) Anybody got any good recommendations for books for learning Python? Especially ones that actually give a clear explanation of the the whole OOP thing in a Python context? I've found stuff that kind of explains things for other languages, but that doesn't help with understanding things from a Python specific point of view. I've gotten a Python for Dummies book...but...it seems I am too dumb even for that. I'd really like to get a handle on this, since Python scripts both Inkscape and Blender as well. I've been tinkering with computers for over 20 years, but my programming experience, what there is of it, is pretty much in procedural. Some Pascal (back in the 80's), various flavors of BASIC, mostly on old Atari 8-bit machines, some on Commodor64, Action --think of a cross between C and Pascal, it ran on the Atari--, and lately, Tcl/Tk (Not explicitly OOP, but it is supposedly capable of it), on Win and Linux. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] scripting
Elwin Estle wrote: #1 is Core Python Programming by Wesley Chun. He covers everything. There are gotchas in there that you'd have to program in python for years to learn, all in a nice clear, well organized, progressive, understandable format. Good reference material in the back too. Couldn't do better than this. Mark Lutz's book Learning Python from O'Reilly is pretty good. He did another python book earlier that was awful, a jillion concepts lightly touched and no organization, but this one's pretty good. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] scripting
On 30-Dec-09 10:42 AM, Elwin Estle wrote: Is it in the plan to remove the scheme scripting in Gimp and go to all Python scripting? Is there much of a difference between what can be done with either? I have tried a couple of times to learn Python, but I am an old fogy and keep coming up against a wall whenever I try to get my head around the whole object oriented programming thing (yes, I know, Python can do procedural just fine...but it seems like OOP is a sort of central concept to a lot of what python is capable of..) Anybody got any good recommendations for books for learning Python? Especially ones that actually give a clear explanation of the the whole OOP thing in a Python context? I've found stuff that kind of explains things for other languages, but that doesn't help with understanding things from a Python specific point of view. I've gotten a Python for Dummies book...but...it seems I am too dumb even for that. I'd really like to get a handle on this, since Python scripts both Inkscape and Blender as well. I've been tinkering with computers for over 20 years, but my programming experience, what there is of it, is pretty much in procedural. Some Pascal (back in the 80's), various flavors of BASIC, mostly on old Atari 8-bit machines, some on Commodor64, Action --think of a cross between C and Pascal, it ran on the Atari--, and lately, Tcl/Tk (Not explicitly OOP, but it is supposedly capable of it), on Win and Linux. I like Alex Martelli's Python in a Nutshell but, especially with the introduction with Python 3, you might prefer Mark Summerfield's Python 3. Most people are continuing to use Python 2.6 for now. Colin W. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] Scripting - How to save JPEG with thumbnails
Hi, I am new to scheme scripting. What i want to do is open pictures from a directory and apply a very simple macro. I can do it manually with the following steps : - open image the_image.jpg. - save as the_image_with_thumbnail.jpg - choose options : q = 0.85 , progressive, and default other options. - check the option : save thumbnail. - Click OK. - close image. Could someone show me some sample scripts to do that ? I've found several way to save a thumbnail in jpg or png format in a separate file, but did not find any script matching the steps i've exposed ... Thanks for any reply G.B. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Scripting - How to save JPEG with thumbnails
Guillaume Bonillo a écrit : Paul Surgeon a écrit : On Monday 07 May 2007 11:37, Guillaume Bonillo wrote: Hi, I am new to scheme scripting. What i want to do is open pictures from a directory and apply a very simple macro. I can do it manually with the following steps : - open image the_image.jpg. - save as the_image_with_thumbnail.jpg - choose options : q = 0.85 , progressive, and default other options. - check the option : save thumbnail. - Click OK. - close image. Using a bash script or DOS batch file with imagemagick is a better and easier solution. Below is a bash script that I use to create thumbnails of photos from my digital camera. You can pass the jpg quality parameter to convert - I used the default which is 75% I think. The options are in the docs. - #!/bin/bash echo Converting ... if [ ! -d resized-1024x768 ] then mkdir resized-1024x768 fi if [ ! -d resized-256x192 ] then mkdir resized-256x192 fi # Loop through all jpg files in current folder # for i in *.jpg do FileName_Stripped=`echo $i | cut -d. -f1` if [ ! -e resized-1024x768/$FileName_Stripped-1024x768.jpg ] then echo Converting $i to $FileName_Stripped-1024x768.jpg convert -resize 1024x768 $i resized-1024x768/$FileName_Stripped-1024x768.jpg fi if [ ! -e resized-256x192/$FileName_Stripped-256x192.jpg ] then echo Converting $i to $FileName_Stripped-256x192.jpg convert -resize 256x192 $i resized-256x192/$FileName_Stripped-256x192.jpg fi done echo Done - Thank you very much for pointing this tool to me. However ... I can't find in imagemagick the ability to save thumbnail as EXIF data in the jpeg, and not in a different picture. Ok, so if someone want to write Exif thumbnail to jpeg i've done this with imagemagik and exiftools to write thumbnail generated by imagemagik... Maybe there's a better way to do this but this tools works just as expected and there's no loss of other exif info. But if someone ever got a scheme script to do that through GIMP ... i'am interested Thanks list ! ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Scripting - How to save JPEG with thumbnails
Hi, On Mon, 2007-05-07 at 11:37 +0200, Guillaume Bonillo wrote: I am new to scheme scripting. What i want to do is open pictures from a directory and apply a very simple macro. I can do it manually with the following steps : - open image the_image.jpg. - save as the_image_with_thumbnail.jpg - choose options : q = 0.85 , progressive, and default other options. - check the option : save thumbnail. - Click OK. - close image. It's acutally a bad idea to do that. When you are opening a JPEG file and saving it again as JPEG, you are recompressing it and this recompression means a loss of quality. This can be avoided by using a tool that manipulates the JPEG file without recompressing the image data. Such tools are available and they can even rotate the image for you without decompressing the image data. See for example exiv2 (http://www.exiv2.org/). The manual page says that it can insert thumbnails. Sven ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] Scripting questions...
Using python, I'm trying to find the color that is used on a layer. The layer has an alpha channel and it only uses 1 color on the layer. The problem is, I don't know where the colored pixels are. It may only be one pixel anywhere on the layer, or the entire layer may be filled. I also need to find the color used on a text layer... Anyone have any ideas ? Thanks a million... jbaker ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] Scripting font hinting
I've just moved some of my 1.2 scripts to 1.3 and I notice that text layers are created with font hinting toggled on. Looking at DB browser, hinting is not an option in gimp-text-fontname so how can this be set from a script? -- John Green ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Scripting font hinting
Hi, John Green [EMAIL PROTECTED] writes: I've just moved some of my 1.2 scripts to 1.3 and I notice that text layers are created with font hinting toggled on. Looking at DB browser, hinting is not an option in gimp-text-fontname so how can this be set from a script? It cannot be set since you are using the compatibility API. There are no new PDB calls for the text tool yet but I plan to add them when the time has come. If you absolutely need to turn off hinting, you will have to wait for the new API, compile freetype w/o hinting or patch the GIMP. Sven ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Scripting font hinting
On Tue, Sep 16, 2003 at 03:19:42PM +0200, Sven Neumann wrote: It cannot be set since you are using the compatibility API. There are no new PDB calls for the text tool yet but I plan to add them when the time has come. If you absolutely need to turn off hinting, you will have to wait for the new API, compile freetype w/o hinting or patch the GIMP. Thanks, I wondered why I couldn't find anything. It's just that a font I was using looked pretty ugly with hinting on. So I just used a different font. -- John Green ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Scripting for resize
Hi, Paulo J Matos [EMAIL PROTECTED] writes: I'm just new to script-fu and gimp. I was not aware scheme is used for scripting in gimp. I loved that. :D Anyway, I've read the script-fu part of the gimp manual. I have a directory tree with about 1000 images and I'd like to resize them all to 20x20. Is there any script for doing that? for i in '*.png'; do convert -sample 20x20 $i small-$i; done Not a GIMP script but probably a lot better suited for this job. Sven ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Scripting for resize
On Wed, Jul 16, 2003 at 06:14:53PM +0200, Sven Neumann [EMAIL PROTECTED] wrote: I'm just new to script-fu and gimp. I was not aware scheme is used for scripting in gimp. I loved that. :D Anyway, I've read the script-fu part of the gimp manual. I have a directory tree with about 1000 for i in '*.png'; do convert -sample 20x20 $i small-$i; done Sticking a ! at the end of the 20x20 will actually do the job. -- -==- | ==-- _ | ---==---(_)__ __ __ Marc Lehmann +-- --==---/ / _ \/ // /\ \/ / [EMAIL PROTECTED] |e| -=/_/_//_/\_,_/ /_/\_\ XX11-RIPE --+ The choice of a GNU generation | | ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
