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FU_effects_blackboard-effect.scm
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; FU_effects_blackboard-effect.scm
; version 2.8 [gimphelp.org]
; last modified/tested by Paul Sherman
; 02/14/2014 on GIMP-2.8.10
; 03/09/2020 on GIMP-2.10.20
;
; 02/14/2014 - convert to RGB if needed
;==============================================================
;
; Installation:
; This script should be placed in the user or system-wide script folder.
;
; Windows Vista/7/8)
; C:\Program Files\GIMP 2\share\gimp\2.0\scripts
; or
; C:\Users\YOUR-NAME\.gimp-2.8\scripts
;
; Windows XP
; C:\Program Files\GIMP 2\share\gimp\2.0\scripts
; or
; C:\Documents and Settings\yourname\.gimp-2.8\scripts
;
; Linux
; /home/yourname/.gimp-2.8/scripts
; or
; Linux system-wide
; /usr/share/gimp/2.0/scripts
;
;==============================================================
;
; LICENSE
;
; 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/>.
;
;==============================================================
; Original information
;
; Copyright (c) 2007 Pucelo for www.gimp.org.es
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions
; are met:
; 1. Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; 2. Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in the
; documentation and/or other materials provided with the distribution.
; 3. Neither the name of copyright holders nor the names of its
; contributors may be used to endorse or promote products derived
; from this software without specific prior written permission.
; *
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
; TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS OR CONTRIBUTORS
; BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
; CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
; SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
; ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
; POSSIBILITY OF SUCH DAMAGE.
;==============================================================
(define (FU-blackboard
img
drawable
copy
aplanar
)
(let* (
(dummy 0)
)
(define image
(if (= copy TRUE)
(car (gimp-image-duplicate img))
img
)
)
(gimp-image-undo-group-start image)
(if (not (= RGB (car (gimp-image-base-type image))))
(gimp-image-convert-rgb image)
)
(set! drawable (car (gimp-image-flatten image)))
(define shadow-layer (car (gimp-layer-copy drawable 1)))
(gimp-image-insert-layer image shadow-layer 0 -1)
(gimp-item-set-name shadow-layer "Sat")
(gimp-layer-set-mode shadow-layer 12)
; Create new layer and add to the image
(define shadow-layer2 (car (gimp-layer-copy drawable 1)))
(gimp-image-insert-layer image shadow-layer2 0 -1)
(gimp-item-set-name shadow-layer2 "Hue / Tono")
(gimp-layer-set-mode shadow-layer2 11)
(plug-in-sobel 1 image drawable 1 1 0)
(gimp-equalize drawable 0)
(if
(= aplanar TRUE)
(set! drawable (car (gimp-image-flatten image)))
()
)
(gimp-image-set-active-layer image drawable)
(if
(= copy TRUE)
(gimp-display-new image)
()
)
(gimp-image-undo-group-end image)
(gimp-displays-flush)
)
)
(script-fu-register "FU-blackboard"
"<Image>/Script-Fu/Effects/Blackboard Effect"
"Simulates drawn on a blackboard with chalk colors. Works best on simple colors. \nfile:FU_effects_blackboard-effect.scm"
"Is based in this script http://gimp.org/ docs/ scheme_plugin / scheme-sample.html by Simon Budig <simon@gimp.org> /n Esta basado en ese guion de Simon Budig."
"Pucelo (based on a Simon Budig sample script) for www.gimp.org.es"
"2007/4/21"
"*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-TOGGLE "Work on copy" TRUE
SF-TOGGLE "Flatten image at finish" TRUE
)
;end of script