python

PAL and PAL VHS filters

kecskebak — Mon, 05 Oct 2009 06:29:02 +0200

A couple of Python-Fu filters for making images look like they have been PAL encoded or retrieved from a VHS tape. The plug-ins will scale any image they are fed to 720 x 576 - this is because that's the size PAL images are.

PAL images have non-square pixels - if you want to correct the aspect ratio afterwards you can scale them to 788 x 576.

Palette to Image

cr33dog — Wed, 16 Sep 2009 21:21:52 +0200

Palettes Menu -> Palette to Image

Take the active (selected) palette and create an image containing the colors and their names. Requires python.

Options:
- Font: pick the font for the name listing
- Size: size of each color

Tested with 2.6 and linux, but should work cross-platform.

TODO: it's hardcoded to a minimum of 200px wide - I should change that to something more reasonable. Some nice additions would be bg and text color selectors, and possibly some layout options (spacing, columns, etc.)

Have fun ;)

Export Layers as PNG

cr33dog — Thu, 03 Sep 2009 03:15:21 +0200

File->Export Layers->

Prompts for a folder to save PNG files. Pretty straightforward.

Tested in 2.6.1 on linux and 2.6.6 on XP.

OpenRaster load/save handler

jonnor — Wed, 02 Sep 2009 20:21:42 +0200

OpenRaster is an effort by the Create project[1] to offer a standardized and open interchange format for raster-based applications. MyPaint and Drawpile (SVN version) uses this format by default, and Krita and gegl should be able to use it. Now GIMP can too!

The plug-in is attached. Move to GIMPs plug-in directory to install.
Its a part of the oratools project, which aims to provide useful tools and utilities to facilitate the use of OpenRaster file format. You can find it at http://gitorious.org/oratools

1. http://create.freedesktop.org/wiki/Main_Page

Gimp IDE

Dmitry — Thu, 27 Aug 2009 12:42:50 +0200

Simple GIMP IDE.

In fact, Gimp IDE is a simple text editor with syntax highlighting, with the ability to run the script.
Simple dialog allow you to create plug-in based on you script.

Perhaps fills a gap between conventional designer who can copy-paste from the web page, but can not edit and save script as plug-in.

In feature i plan create mini plug-in repository in internet with simple lifecycle as:

1) Select plug-in from menu (content menu is list of plug-ins on server).
2) Plug-in automaticaly download from server and run

Also this mini IDE is suitable for games with GIMP and study its internal structure.

Installing instructions for windows:

1) Install Gimp 2.6 (if not installed) into c:\bin\gimp\
2) Install Python 2.5 (if not installed (check in Gimp)) into c:\bin\gimp\python
3) Install PyGTK
http://ftp.gnome.org/pub/GNOME/binaries/win32/pycairo/1.4/pycairo-1.4.12...
http://ftp.gnome.org/pub/GNOME/binaries/win32/pygobject/2.14/pygobject-2...
http://ftp.gnome.org/pub/GNOME/binaries/win32/pygtk/2.12/pygtk-2.12.1-3....
4) Install GTK Binaries or add c:\bin\gimp\bin\ into PATH environment variable (check you path! path must be, a ptah to Gimp bin directory)
5) unpack dll.zip into c:\bin\gimp\bin\ (check you path).
this archive contents: libglade-2.0-0.dll libgtksourceview-2.0-0.dll
6) unpack python.zip into c:\bin\gimp\python\lib\site-packages\ (check you path)
this archive contents: gimpcolor.pyd _gimpenums.pyd gimpfu.pyc gimpplugin.pyc
gimpshelf.py gimpthumb.pyd _gimpui.pyd gtksourceview2.la gimpenums.py
gimpenums.pyo gimpfu.pyo gimpplugin.pyo gimpshelf.pyc gimpui.py gimpui.pyo
gtksourceview2.pyd gimpenums.pyc gimpfu.py gimpplugin.py gimp.pyd gimpshelf.pyo
gimpui.pyc gtksourceview2.dll.a pygimp-logo.png

If you Gimp distribution setup with enabled python supprt, you only need: gtksourceview2.dll.a
gtksourceview2.pyd and gtksourceview2.la files

7) Unpack gimpide in some place and check set-up:
set PATH=%PATH%;C:\bin\GIMP\bin
C:\bin\GIMP\Python\python.exe gimpplug.py
(check you path)
if you see errors - let me know

8) If you Gimp distribution setup with enabled python supprt, skip this item.
Unpack pygimp.interp.zip into c:\bin\GIMP\lib\gimp\2.0\interpreters
this file contain path to python interpreter. Edit him in notepad if you need (check paths).

9) If you Gimp distribution setup with enabled python supprt, skip this item.
Unpack plug-ins.zip into c:\bin\gimp\lib\gimp\2.0\plug-ins\

10) Unpack gimpide.zip into c:\bin\gimp\lib\gimp\2.0\plug-ins\

THE END :-)

Example script (simple paset it into GIMP IDE editor and run):
# -*- coding: utf8 -*- #Create border with bg and fg color #based on http://blogpost.am9.ru/?cat=14


import gimp

from gimpfu import pdb

from gimpfu import *
#BORDER WIDTH

width      =  20

#Edit this ^^^^^^^
images = gimp.image_list()

image = images[0]

image.undo_group_start()
old_background_color = pdb.gimp_context_get_background()

old_foreground_color = pdb.gimp_context_get_foreground()
image_width  = pdb.gimp_image_width(image)

image_height = pdb.gimp_image_height(image)

# get a copy of background

background_copy = pdb.gimp_image_get_active_layer (image)

border = pdb.gimp_layer_copy(background_copy,0)

pdb.gimp_image_add_layer(image, border, -1)

#select and make stroke

pdb.gimp_rect_select(image, width, width,  image_width - 2*width , image_height - 2*width , CHANNEL_OP_REPLACE,  0, 0.0)
drawable = pdb.gimp_image_active_drawable (image)

# TODO somehow set the width for the stroke

pdb.gimp_edit_stroke(drawable)

# fill by foreground color

pdb.gimp_selection_invert(image)
pdb.gimp_context_set_foreground(old_background_color)
drawable = pdb.gimp_image_active_drawable (image)

pdb.gimp_bucket_fill(drawable,FG_BUCKET_FILL,NORMAL_MODE,100,0,0,width/2,width/2)

pdb.gimp_layer_set_opacity(border,50)

pdb.gimp_selection_none (image)

# megre visible layers

pdb.gimp_image_merge_visible_layers(image,EXPAND_AS_NECESSARY)
pdb.gimp_context_set_foreground(old_foreground_color)

pdb.gimp_context_set_background(old_background_color)

image.undo_group_end() gimp.displays_flush()

Known issues:
* Under Windows syntax highlight not work. (May be mime detection broken)
* The strange игп is lost when the contents of global dict:

if you write
import aaa def a(test): print aaa.somefunction(test) a("foo")

Python will swear that the aaa module is not loaded
workaround: import aaa def a(test): import aaa print aaa.somefunction(test) a("foo")

--
Changes:
31.09.2009 - Russian translation added

Mix cells

lostlont — Sat, 22 Aug 2009 17:42:17 +0200

Script to randomly mix cells of a selection. The bounding box of the current selection will be used automatically to eliminate non-rectangular and feathered selection. After specifying the count of columns and rows in the selected region the width and height of the selection will be reduced if necessary (thus ensured the divisibility of the selection). The script will then shuffle the cells inside the selection and return the mixed image on a new layer or in place of the original layer.

Fake-DRI

Ravetracer — Mon, 08 Jun 2009 14:18:57 +0200

This plugin fakes some kind of DRI effect by enchancing the dark parts of a picture and reducing the light parts. After that procedure it enhances the contrast by using the unsharp masking filter.

Because GIMP has no action recorder till now, i wrote this as a simple batch in python ;-).

I hope, you're like this little thing.

Tested with GIMP 2.6.x. Should be fine in 2.4.x too.

Palette Generator

krypt — Thu, 30 Apr 2009 15:07:17 +0200

New version:1_3
Add to palette black, gray and white by default.

New version:1_2
Save palette bug fixed.

Version:1_1
Adjust light of scheme work fine (I hope!)

It generates palette by following the harmonic schemes of color: monochromatic, complementary, triadic, tetrad and analogous.
Options:
- you can choose between the digital wheel (RGB) and the real wheel (RYB);
- you can choose whether to use the color "web safe" or not;
- you can see in real time in a preview page the combination of colors;
- you can save a Gimp or Inkscape palette.
Required python libraries: :
- GrapeFruit-0.1a3
INSTALLATION: copy file gimp_palette_generator.py to the standard place for plugins (folder "plug-ins").

See: http://krypt77.altervista.org/index_gimp.htm

Flash SWF Export

Bart — Mon, 23 Mar 2009 20:08:01 +0100

A Python plugin that exports a GIMP image as a Shockwave Flash file or the layers of an GIMP image as a Shockwave Flash animation. The package "swftools" is required.

Presented by area42 - Agentur & Systempartner

Download, screenshot and more information at

http://my.opera.com/area42/blog/flash-swf-export-for-gimp

NDS Texture exporter

weirdfox — Thu, 19 Feb 2009 09:57:54 +0100

This is a plugin to export image in raw format that can be used for textures on the Nintendo DS (for DevkitPro).

The plugin add some new "save as" target for each format supported:
* NDS A3I5 (palletted, 8bit: 3bit alpha and 5bit index)
* NDS A5I3 (palletted, 8bit: 5bit alpha and 3bit index)
* NDS RGB16 (palletted, 4bit index - 16 colors)
* NDS RGB256 (palletted, 8bit index - 256 colors)
* NDS RGB (raw 15bit)
* NDS RGBA (raw 15bit + 1bit alpha)

More info :
http://www.weirdfox.com/?id=18