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GPLv2+

GNU GPL version 2 or any later version, see http://www.gnu.org/licenses/gpl-2.0.html

TGA Batch Save

Save all layers as TGA files, discarding alpha channels and applying layer masks as alpha if they exist. Name becomes imagename-layername.tga
This script is created by Joao S. O. Bueno at my request and I take no credit for it's development.
Appears in /Layer/Transparency/Copy Mask to Other layers of the Image window.

Mask Copier

Apply other layers masks. Copy mask in active layer to all other layers.

This script is created by Joao S. O. Bueno at my request and I take no credit for it's development.

Appears in /Layer/Transparency/Copy Mask to Other layers of the Image window.

Merge Visible with Layer Mask & Alpha

Merge visible using the active layer transparency to create a mask, visible layers below are discarded.

This can be useful in 3d applications to preserve texture maps that belong in the alpha channel by using the bottom layer's mask to hold the information.

Appears in /Image/Merge Visible with Layer Mask & Alpha of the Image window.

GIMP Indexed palette selection tools

I wrote this script using GIMP bug #88361 as inspiration.
This script provides three functions that expand GIMP's ability to deal with indexed colors. I designed them with pixel artists in mind, who frequently store their target palette as a set of swatches in one region of the image they're working on.

(Image) > Colors > Map > Colormap to palette
Creates a GIMP palette based on an indexed image's colormap, which can then be used just like any normal GIMP palette.

GIMP YCC Inversion

Performs a value-inversion on the current layer, based on its representation in the YCC colorspace. The result is similar to the existing "Value Invert" command (but without that command's color-distortion introduced from low RGB values) and can be quite striking on certain source images.
Accessible via (Image) > Colors > Components > Luma invert.

Workflow process

is there a standard workkflow process that I should follow when editing photos. I am only new to GIMP and as a starting point this would be extemely helpful.

Focus Blur Binaries for Microsoft Windows

Windows binariers for the focus blur plug-in by Kyoichiro Suda.

Unfortunately without FFTW3 so far (because I do not have it on my system yet), and thus slow.

 

The attachment is meant to be extracted into the GIMP program directory, if you want to place it elsewhere, just drop the executable to the right place. Translations for Italian, Japanese and Russian are included.

High Pass Filter

A general purpose high-pass filter plugin. It shows up as Filters->Generic->High Pass Filter. You can select a blur radius that sets the size of detail to be passed by the filter, as well as an option to keep the source layer or replace it.

EDIT: Updated to use grain extract rather than the previous method, This looses less histogram data and is closer to the Photoshop version...

It actually implements 5 different high pass modes:

Bloom

Python-Fu script to apply light bloom effect on an image. Simply put, this script will make shiny parts of the image even shinier and makes the light creep over the edges of darker objects, sort of like what usually happens when you take a photo against the light. The script will create a flattened copy of the image, and add a layer of light on top of it. You can play with the growth settings in the script and the layer opacity and mode to achieve certain effects.

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