/usr/share/gimp/2.0/scripts/phillips-film-grain.scm is in gimp-plugin-registry 7.20140602ubuntu3.
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
;
; Film Grain script for GIMP 2.4
; Copyright (C) 2007 Harry Phillips <script-fu@tux.com.au>
;
; Tags: photo, grain, noise, film
;
; Author statement:
;
; Based on the tutorial at http://www.gimpguru.org/Tutorials/FilmGrain/
; This script adds that gritty, art-house/street-photography/high-ISO
; grainy film look, especially in monochromatic photos.
;
; --------------------------------------------------------------------
; Distributed by Gimp FX Foundry project
; --------------------------------------------------------------------
; - Changelog -
; 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, you can view the GNU General Public
; License version 3 at the web site http://www.gnu.org/licenses/gpl-3.0.html
; Alternatively you can write to the Free Software Foundation, Inc., 675 Mass
; Ave, Cambridge, MA 02139, USA.
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define (script-fu-film-grain theImage
theLayer
grainSize
blurAmount
maskToggle
midPoint)
(define (mask-spline yPoint)
(let* ((a (cons-array 6 'byte)))
(set-pt a 0 0 0)
(set-pt a 1 127 yPoint)
(set-pt a 2 255 0)
a))
(define (set-pt a index x y)
(prog1
(aset a (* index 2) x)
(aset a (+ (* index 2) 1) y)))
;Start an undo group so the process can be undone with one undo
(gimp-image-undo-group-start theImage)
(let*
(
(imageWidth 0)
(imageHeight 0)
(myForeground 0)
(myBackground 0)
(newLayer 0)
(mask 0)
)
(set! imageWidth (car (gimp-image-width theImage)))
(set! imageHeight (car (gimp-image-height theImage)))
;Read the current colours
(set! myForeground (car (gimp-context-get-foreground)))
(set! myBackground (car (gimp-context-get-background)))
;Select none
(gimp-selection-none theImage)
;Set the foreground colour
(gimp-context-set-foreground '(128 128 128))
;Add a new layer
(set! newLayer (car (gimp-layer-new theImage imageWidth imageHeight 1 _"Film Noise" 100 5)))
(gimp-image-add-layer theImage newLayer 0)
;Fill the layer with BG colour
(gimp-edit-fill newLayer 0)
;Open the scatter HSV
(plug-in-scatter-hsv 1 theImage newLayer 2 3 10 grainSize)
;Apply the blur with the supplied blur amount
(plug-in-gauss 1 theImage newLayer blurAmount blurAmount 0)
(if (= maskToggle TRUE)
(begin
;Add a layer mask
(set! mask (car (gimp-layer-create-mask newLayer 0)))
(gimp-layer-add-mask newLayer mask)
;Copy the layer into the clipboard
(gimp-edit-copy theLayer)
;Paste it into the layer mask
(gimp-floating-sel-anchor (car (gimp-edit-paste mask TRUE)))
;Alter the curves of the mask
(gimp-curves-spline mask 0 6 (mask-spline midPoint))
) ())
;Finish the undo group for the process
(gimp-image-undo-group-end theImage)
;Set the FG and BG colours back to what they were
(gimp-context-set-foreground myForeground)
(gimp-context-set-background myBackground)
;Ensure the updated image is displayed now
(gimp-displays-flush)
)
)
(script-fu-register "script-fu-film-grain"
_"Film Grain..."
_"Performs a tone mapping operation with a specified blur on an opened image"
"Harry Phillips"
"Harry Phillips"
"May. 05 2007"
"*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-ADJUSTMENT _"Grain size" '(50 10 500 5 5 1 0)
SF-ADJUSTMENT _"Blur amount" '(1 1 5 0.1 1 1 0)
SF-TOGGLE _"Add a layer mask" FALSE
SF-ADJUSTMENT _"Midpoint adjustment" '(127 0 255 1 1 1 0)
)
(script-fu-menu-register "script-fu-film-grain"
"<Image>/FX-Foundry/Photo/Effects")
|