/usr/share/gimp/2.0/scripts/meiklejohn-tonemapping.scm is in gimp-plugin-registry 7.20140602ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; Tonemaping script for GIMP 2.4
; Created by David Meiklejohn, Harry Phillips (Process)
;
; Tags: color, tonemap
;
; Author statement:
;
; Reduce global contrast while increasing local contrast and shadow/highlight
; detail.
;
; --------------------------------------------------------------------
; Distributed by Gimp FX Foundry project
; --------------------------------------------------------------------
; - Changelog -
; Version 1.3 (5th August 2007)
; - Added GPL3 licence
; - Menu location at the top of the script
; - Removed the "script-fu-menu-register" section
;
; Version 1.2
; - Made the script compatible with GIMP 2.3
;
; --------------------------------------------------------------------
;
; This program is free software: you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation, either version 3 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program. If not, see <http://www.gnu.org/licenses/>.
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define (my-duplicate-layer image layer)
(let* ((dup-layer (car (gimp-layer-copy layer 1))))
(gimp-image-add-layer image dup-layer 0)
dup-layer))
(define (script-fu-tone-mapping theImage theLayer blurAmount opacityAmount)
;Start an undo group so the process can be undone with one undo
(gimp-image-undo-group-start theImage)
(let
(
(copy1 (my-duplicate-layer theImage theLayer))
(copy2 (my-duplicate-layer theImage theLayer))
)
;Apply the desaturate and invert to the top layer
(gimp-desaturate copy2)
(gimp-invert copy2)
;Apply the blur with the supplied blur amount
(plug-in-gauss 1 theImage copy2 blurAmount blurAmount 0)
;Set the layers opacity
(gimp-layer-set-opacity copy2 75)
;Merge the top layer down and keep track of the newly merged layer
(let ((merged (car (gimp-image-merge-down theImage copy2 0))))
;Change the merged layers mode to SOFT LIGHT (19)
(gimp-layer-set-mode merged 19)
;Change the merged layers opacity
(gimp-layer-set-opacity merged opacityAmount))
;Finish the undo group for the process
(gimp-image-undo-group-end theImage)
;Ensure the updated image is displayed now
(gimp-displays-flush)
)
)
(script-fu-register "script-fu-tone-mapping"
_"Tone Mapping..."
_"Performs a tone mapping operation with a specified blur on the open image"
"David Meiklejohn"
"2006, David Meiklejohn, Harry Phillips (Process)"
"Feb. 02 2006"
"*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-ADJUSTMENT _"Blur:" '(100 100 500 10 10 1 0)
SF-ADJUSTMENT _"Opacity" '(90 0 100 1 10 1 0)
)
(script-fu-menu-register "script-fu-tone-mapping"
"<Image>/FX-Foundry/Photo/Effects")
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