2.2 Guillotine into Layers

Randall — Fri, 30 Oct 2009 07:52:40 +0100

Short description:,
The Guillotine-into-Layers plug-in is a variation on the Guillotine plug-in by Adam D. Moss. It is intended to address a shortcoming of the original: Too many windows opened! There is, however, a trade-off.

Advantages:
The Guillotine-into-Layers plug-in slices the original image along guides just as does the standard Guillotine plug-in; however, instead of spawning many new images - which clutter the desktop and bog down the processor, this plug-in makes only one new image with multiple layers - one layer for each rectangular region. The user can then selectively copy a single layer from this new image, and paste it as a new image, giving the user greater control. Furthermore, the new image is named with the *.xcf file suffix. That way, if the user needs to stop processing the layers of the new image before s/he is done, then s/he can simply save the new image in the GIMP's native format - which preserves multiple layers.

The trade-off:
When the original Guillotine plug-in slices an image, each new image has the same number of layers as the original, each copied from the same rectangular region. On the other hand, the Guillotine-into-Layers plug-in performs a copy-visible-layers action over each region to produce a new layer for the resulting image - implicitly merging the original layers.

Update 2009-11-8:
The second package - v.0.1.1 - contains an executable compiled for Windows platform and French translations - both from samj. See:
http://registry.gimp.org/node/19886#comment-5923

UnsharpMask2.0.12 (Windows binary -source code)

PhotoComiX — Mon, 16 Mar 2009 06:00:38 +0100

This plugin is not more maintained but still works very well On Gimp 2.6 and even 2.7
Was developed by Peter Heckert , Windows binary were provided by Michael Schumacher. but the original side is offline from years and all old links dead

i am mirroring both source code and binaries to avoid it can get lost and i repost here also in the hope that may found more users and a maintainer (as i said still works very well ,from gimp 2.0 till 2.7 a maintainer may help for the future )

About the most obvious question, what is the difference with standard unsharp mask that is simple,
what gimp USM offer is a only a subset of what this plugin may do.

gimp USM works ,basically by adding a blurred duplicate ,that as result create a white halo around contour's edges.

As example if you have a black arrow on dark grey BG, a more or less wide white halo around the arrow will made it much more visible and the image more sharp
But that easily lead to effect similar to overdone HDR and work better on the darker part of the image to reveal less dark details

Well USM2 may do that but also the contrary, sharpen by adding a dark halo
To use a similar example may sharpen a gray arrow on a white BG by creating a dark halo around arrow's contour

"Dark halo" sharpening on photos look often more natural then white at the most usual settings,
while pushing for dramatic setting is usually a more pleasant and artistic effect,
( we are used to accept black outlines as in draw,comics, illustration, so are more acceptable for our eyes then white outlines ..
Note that a thin but very intense white halo around contours edges is identical to white outlines, as a thin and very dark halo is identical to black outlines ..this is relevant for "artistic" or "creative" uses )

Interface may look too complex at first but just draw a ideal line under the 4th slider will solve

All what up is "BASIC" : on 4 sliders there 3 correspond exactly to that of the Gimp USM
"+" is to regulate the "white halo sharpening" ,"-" to regulate the "dark halo sharpening"
(NOTE: If both"+" and "-" are set to 0 then plugin do not sharpen but create a gaussian blur )

All what after that ideal line is "ADVANCED" ...default is fine in most cases anyway from there you may correct the gamma, or dose the intensity of the effect differently on shadows, middletones and highlights.

More accurate information are included in the zip.
#####################################################################
If someone may provide a better description is welcome , i am a user and not a developer and my English is quite approximate.

DOWNLOAD
http://photocomix-resources.deviantart.com/art/Lost-Found-Gimp-UnsharpMa...

repeated rotation

mand159 — Tue, 10 Mar 2009 00:11:19 +0100

This script generates rotated copies of the current layer.
It can be used to draw star-like images (see jpg below)
Save the script in your scripts folder, you will find it under Layer -> Transform -> repeat rotation.

L-system & turtle graphic

mand159 — Mon, 09 Mar 2009 23:37:28 +0100

These scripts are mainly aimed at generating L-system fractals using turtle graphics. As an added bonus, shapes (not fractals) and turtle trails too.
L-system (or shapes, or turtle trails) can be drawn using different tools, including path, and centered/scaled to image/layer/mask.

Save both scripts in your scripts folder, you will find it under Filters -> Render -> Turtle graphics.

Cow-Blotches-Texture v2.4.1

Frank103 — Fri, 13 Jun 2008 19:21:52 +0200

The Script generates a cow-blotches texture.
GIMP v2.4: cow-blotches-texture_241.zip
GIMP v2.2: cow-blotches-texture_223.zip
german Tutorial: http://cbt.k090999.de/gimp.php
Script mit deutscher Beschriftung: Kuhflecken-Textur v2.4.1

Silicosaur PhotoFX

dincsi — Mon, 19 May 2008 12:12:20 +0200

Silicosaur PhotoFX is a collection of script-fu macros for GIMP (GNU Image Manipulation Program) to easily simulate development methods and film types used by photographers of pre-digital age.

By using Silicosaur PhotoFX you can simulate Portra, Provia, an Velvia film characteristics and Cross Processing (aka. X-PRO) effects.

Download

Refocus (windows )

PhotoComiX — Thu, 24 Apr 2008 09:04:34 +0200

there is a pre-compiled windows version of this well know plugin but was available only from a Japanese webside.
( http://www.geocities.jp/gimproject/gimp2.0.html )
For windows user that don't read Japonize ideograms, and do not know how to compile by source i found useful
mirror here
DOWNLOAD LINK
http://photocomix-resources.deviantart.com/art/Refocus-plugin-windows-OS...

please for source code, versions for other OS, more info and updates refer to the developer page
http://refocus.sourceforge.net/

Freetype plugin (compiled for Windows)

PhotoComiX — Thu, 24 Apr 2008 08:49:24 +0200

For some reason the freetype plugin, quite useful to edit text and fonts, was removed from gimp-2.4 , and many miss it Work well with Gimp-2.4 (at least on Windows OS)
The windows users that don't know how to compile by source , may found it here http://photocomix-resources.deviantart.com/art/Lost-Found-Gimp-Freetype-...
ready to be installed

For source code , version for others OS and possible updates please refer to the developer side (www.freetype.org ) i'm just mirroring the windows binary because are hard to find

SHAPEFS 1.2.0.0-20051020

alreaud — Mon, 07 Apr 2008 03:27:30 +0200

Shape from shading algorithms have been around for a while. Dr. Mark J. Carlotto describes a simplified version using basic trigonometry (Sculptor's Photoclinometry page in the Pacific-Sierra Research Image Shape from Shading section). In that section, Dr. Carlotto describes the Berthold Klaus Paul Horn algorithm for generating shape from shading, first described by Horn in 1989.

This plug-in generates a 3D image or movie from a greyscale source image based on the shading of the image, the sun azimuth, the camera angle (called phase angle), and the pixel size. Originally designed to be used with Mars Orbiter Camera (MOC) images, the user should be familiar with Mars Orbiter Camera ancillary parameters. The plug-in should work with any planetary data system or terrestrial image provided that the above parameters are available.

The results of this plug-in have been somewhat ground-truthed using an ISS image of the Giza pyramids. However, due to the inability to ascertain or enter albedo values for the surface in question, the results should be accepted with CAUTION.

The plug-in is very resource intensive, and requires maximal memory to function effectively on large (1000x1000) images. The author recommends a minimum of 512MB of system memory.

Loader for NASA/ESA PDS/EDR images

areo — Sun, 09 Mar 2008 13:19:24 +0100

This plugin loads NASA/ESA PDS/EDR images.

PDS/EDR format is the image format used by NASA Planetary Data System and by ESA Planetary Science Archives. PDS images from various space missions are available at http://pds-imaging.jpl.nasa.gov/ and http://www.rssd.esa.int/index.php?project=PSA

With the PDS plug-in you can load images from these missions and others:

Mars Express HRSC
2001 Mars Odyssey THEMIS EDR/RDR-QUB (RGB-loader)
Mars Global Surveyor MOC
Mars Pathfinder
Viking Lander

PDS-files usually have the filename-suffix ".img" or ".imq" if compressed. Note, that this suffix is also used for other non-PDS file-formats.

The plug-in will install itself as input filter for files with the following suffixes:
img,imq,qub,pds,edr,bb1,bb2,bb3,bb4,ir1,ir2,ir3,n07,n15,sur,sun,red,grn,blu,sgr,vio

Source and compiled versions for Windows, Linux and Mac OS:
http://areo.info/gimp/