Python

Watermark

laurentiu — Mon, 09 Nov 2009 06:32:28 +0100

Imprints a non-intrusive faint text watermark sparsely repeated over the entire image. The watermark is meant to be visible upon close inspection without disturbing the viewing of the image.

The watermark visibility can be fine-tuned by changing the opacity of the watermark layer.

Contains an image plugin that operates on an open image and a batch
plugin that requires the filenames for the source and modified images.

Requires Python.

Install in the plug-ins GIMP directory. Make sure the file is executable or GIMP will ignore it.

To process a file via command-line:

The parameters are source image, "save as" filename, opacity, text, font name, font size in points.

Texture Generator (for 3d artist - I hope!)

krypt — Tue, 20 Oct 2009 16:28:22 +0200

The purpose of this script is to create textures for floors or walls without having a repetition, sometimes annoying.
For more information:
http://krypt77.altervista.org/index_gimp.htm

whoa

ingo — Sun, 18 Oct 2009 20:45:18 +0200

puh sglkjsg ags ag asg asg ag aqg ag ag ag ag ag ag ag

Range Selection Script

rayadagio — Sat, 18 Jul 2009 18:51:35 +0200

The range selection script is a tool for easy and automatic creation of selections and layer masks. The selections or masks include all parts of the image that are situated within a defined range of tonal values, colours, saturation or edges. Selections can be based on one of 16 channels. For detailed instructions and several samples have a look at the attached manual.

Make gradient from panoramics photographs

Giuseppe — Tue, 07 Jul 2009 12:33:13 +0200

With this script is easy to create gradients that they simulate a sunset or a natural landscape. You take a photo panoramic, it selects a thin vertical strip and it rotates it in counter-clockwise direction. You read the maximum width of the image and insert it (width / 2) like number of segments in the dialog box of the plugin.

Examples of images created with the plugin

On the left original photo, to right the gradient.

Tutorial

Author web site: xoomer.virgilio.it/lwcon/gimp/python/make-gradient.htm

Seamless image of one the woven from palettes

Giuseppe — Thu, 18 Jun 2009 20:35:58 +0200

To create seamless image of one the woven is very easy with palette-to-textile.py plugin.
Run the plugins, selects a palette, obtains a new image with the model of the woven.

How to work the plugin

read a selected palette, and make temporary gradient;
create a new image and apply the temporary gradient;
add new layer to image, with opacity 50%, and apply the gradient rotate of 90°;
flatten the image and delete the temporary gradient;

Examples of images created with the plugin

Tutorial

Author web site: http://xoomer.virgilio.it/lwcon/gimp/python/palette-to-textile.htm

Removing Timestamp

drschwalbenmann — Wed, 01 Apr 2009 17:53:13 +0200

This script removes the timestamp imprinted on photos by digital cameras.
A friend had more than 400 photos with such a timestamp so I tried to get rid of it in a fast way. The script is a little quick'n'dirty but in most cases it's doing the job just fine. Better than I thought in the first place...

The procedure:

select the area with the timestamp (manually but optional)
select the color of the timestamp in your selection
add alpha channel to layer (transparent background)
remove the timestamp
duplicate the layer to background
interchange pixels near the timestamp gap (multiple times)
meld the pixels a bit
duplicate the layer with offset around the gap (multiple times)
merge all layers together

Clearly I didn't want to load all the photos manually, that's why wrote a script for batch processing. It processes all photos within a specified directory and selects the area with the timestamp. This script is no real Gimp plugin script. It's just pure python...

Install:

Copy the python_remove_timestamp.py into ~/gimp-2.6/plug-ins/ and make it executable
The batch loader can be placed where you want

Use:

the plugin can be loaded within Gimp menu: Python-Fu --> Remove timestamp
the batch loader should be opened from the console:
gimp -i --batch-interpreter python-fu-eval --batch - < remove_timestamp_batch.py

Cross-stitchify v2.1

w_nightshade — Fri, 20 Mar 2009 15:30:15 +0100

Someone on an email list I belong to asked about ways of making a counted cross-stitch pattern from a photo. There are commercial packages that do this, but it seemed like something GIMP could do, and I wanted some Python practice.

Attached is a zip file containing the following files:

cross-stitch.py - Python script for converting a photo to a cross-stitch pattern
floss.html - an HTML document listing available cross-stitch floss colours by numbered index, common name, RGB and hex values (culled from http://www.stitchstuff.com/dmcrgb.htm)

I used the Photoshop tutorial found here as my starting point. The script performs the following operations:

Pixellates, adjusts brightness & posterises according to user settings
Scales down the pixellated image to increase performance
Checks each colour of each mosaic tile, and performs "best matching" colour exchange against the palette of available floss colours
Scales up pixellated image for next operations and for readability
vAdds grid in new layer
Adds text labels for each colour with floss' index number
Creates a text file listing all floss needed, and in what quantities

It appears in the menus under Filters > Decor > Cross-stitchify... It takes quite some time to run as I need to iterate through each tile of the image twice, and any interruption during the label phase can crash the script, but the output is quite good. The entire image can be printed for use as the pattern, or just the grid if printing in B&W.

UPDATE: version 2.0 - added creation of text file with list of what colour floss, and how many stitches of each, are used. Also allowed for greater range of mosaic sizes to accommodate wider range of images.
UPDATE: version 2.1 - added OS check: win32 opens text file, other OS displays message with path to file.

GIMP Unified Resource Manager (GURM)

RobA — Tue, 13 Jan 2009 19:30:38 +0100

This plugin was created at my suggestion by Sagenlicht at the cartographers' guild website

It is a python plugin (so you need to have python installed) that can dynamically manage all the resources that gimp can use. (It is basically an extension of the brush manager plugin). He has given me permission to post it here :)

GURM stands for GIMP Unified Resource Manager and is based on the idea of the Brush Manager by Sean Bogie. Contrary to Sean's Brush Manager GURM can handle brushes, gradients, palettes, patterns and scripts (Script-Fu). It uses parts of his code.

**** Update 08.01.2009 ****
New version of GURM is out.

Change log for GURM V0.7:

* Added some basic error windows
- GURM now tells you, if the paths set in the gurm.ini are wrong
- GURM now tells you, if it cant find the gurm.ini
Earlier versions simply closed without any feedback
* Started to clean up the code
* Fixed progress bar count
* Added support for .jpg, .png, .tiff, .bmp and .gif files for the Pattern Manager
* Added support for .svg files for the Gradient Manager
* Fixed sorting for GUI

Please consider to upgrade to this version, even if you do not need its changes, as I plan to write an upgrade script beginning with the next update for GURM, which will make updating easier. This script will require V0.7 or later as I made a minor code change how the script searches for the gurm.ini.

How to upgrade

* Unzip the attached gurm.zip to a temporary folder
* Copy the new gurm.py to the plug-ins folder. Please be sure to either remove the old version or overwrite it.
* Set the path to the gurm.ini in the new gurm.py. Please be aware that it has changed in this version. Be sure to read the readme.
* Version 0.7 has a change to the gurm.ini file which means:
* You either have to overwrite your existing gurm.ini with the new one and set the paths again (recommended for less computer experienced peps as you can follow the readme)
* Or add the changes manually:
- change the pattern manager extensions line to (be careful to end the line with a "," and dont use any spaces between the ",":
extensions = .pat,.jpg,.png,.tiff,.bmp,.gif,
- change the gradient manager extensions line to (be careful to end the line with a "," and dont use any spaces between the ",":
extensions = .ggr,.svg,

Quick upgrade for those who allready manually fixed the gurm.ini
If you allready did those gurm.ini changes you do not have to do anything with the gurm.ini - just replace the existing gurm.py in your plug-ins folder with the new version and reset the path to the gurm.ini in it.

First time installation
If you dont update and downloading GURM for the first time, please be sure to read the readme. It tells you how to setup GURM properly. It is easier than it actually reads

Transparency cropper

dack — Sat, 03 Jan 2009 01:30:29 +0100

Transparency crop script by J R Hunt, updated by Darrell Enns to work with Gimp 2.6.
Automatically crops out transparent edges. This is particularly useful after performing a rotate or perspective correction on a photo. It can also perform optimizations to find the crop that removes the transparent edges while mainting as much of the original image as possible.