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; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; 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, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
; http://www.gnu.org/licenses/gpl-3.0.html
;
; Copyright (C) 2008 elsamuko <elsamuko@web.de>
;
; Version 0.1 - Simulating the 2 color technicolor
; Version 0.2 - Some decomposing options
;
(define (elsamuko-technicolor-2-color aimg adraw redpart greenpart cyanfill redfill yellowfill sharpen)
(let* ((img (car (gimp-drawable-get-image adraw)))
(owidth (car (gimp-image-width img)))
(oheight (car (gimp-image-height img)))
(sharpenlayer (car (gimp-layer-copy adraw FALSE)))
(redlayer (car (gimp-layer-copy adraw FALSE)))
(cyanlayer (car (gimp-layer-copy adraw FALSE)))
(yellowlayer (car (gimp-layer-new img
owidth
oheight
1
"Yellow"
30 ;opacity
OVERLAY-MODE)))
;decomposing filter colors, you may change these
(red-R redpart)
(red-G (/ (- 1 redpart) 2) )
(red-B (/ (- 1 redpart) 2) )
(cyan-R 0)
(cyan-G greenpart)
(cyan-B (- 1 greenpart) )
)
; init
(gimp-context-push)
(gimp-image-undo-group-start img)
(if (= (car (gimp-drawable-is-gray adraw )) TRUE)
(gimp-image-convert-rgb img)
)
(gimp-context-set-foreground '(0 0 0))
(gimp-context-set-background '(255 255 255))
(gimp-drawable-set-visible adraw FALSE)
;red and cyan filter
(gimp-drawable-set-name cyanlayer "Cyan")
(gimp-drawable-set-name redlayer "Red")
(gimp-image-add-layer img redlayer -1)
(gimp-image-add-layer img cyanlayer -1)
(plug-in-colors-channel-mixer 1 img redlayer TRUE
red-R red-G red-B ;R
0 0 0 ;G
0 0 0 ;B
)
(plug-in-colors-channel-mixer 1 img cyanlayer TRUE
cyan-R cyan-G cyan-B ;R
0 0 0 ;G
0 0 0 ;B
)
;colorize filter layers back
(gimp-context-set-foreground cyanfill)
(gimp-context-set-background redfill)
(gimp-selection-all img)
(gimp-edit-bucket-fill redlayer FG-BUCKET-FILL SCREEN-MODE 100 0 FALSE 0 0)
(gimp-edit-bucket-fill cyanlayer BG-BUCKET-FILL SCREEN-MODE 100 0 FALSE 0 0)
(gimp-layer-set-mode cyanlayer MULTIPLY-MODE)
;add yellow layer
(gimp-image-add-layer img yellowlayer -1)
(gimp-context-set-foreground yellowfill)
(gimp-edit-bucket-fill yellowlayer FG-BUCKET-FILL NORMAL-MODE 100 0 FALSE 0 0)
;sharpness + contrast layer
(if(= sharpen TRUE)
(begin
(gimp-image-add-layer img sharpenlayer -1)
(gimp-desaturate-full sharpenlayer DESATURATE-LIGHTNESS)
(plug-in-unsharp-mask 1 img sharpenlayer 5 1 0)
(gimp-layer-set-mode sharpenlayer OVERLAY-MODE)
(gimp-layer-set-opacity sharpenlayer 40)
)
)
; tidy up
(gimp-selection-none img)
(gimp-image-undo-group-end img)
(gimp-displays-flush)
(gimp-context-pop)
)
)
(script-fu-register "elsamuko-technicolor-2-color"
_"_Technicolor 2 Color"
"Simulating Technicolor Film.
Newest version can be downloaded from http://registry.gimp.org/node/9129"
"elsamuko <elsamuko@web.de>"
"elsamuko"
"09/09/08"
"*"
SF-IMAGE "Input image" 0
SF-DRAWABLE "Input drawable" 0
SF-ADJUSTMENT _"Red Part of Red Filter" '(1.0 0 1 0.1 0.2 1 0)
SF-ADJUSTMENT _"Green Part of Cyan Filter" '(0.5 0 1 0.1 0.2 1 0)
SF-COLOR _"Recomposing Cyan" '(0 255 255)
SF-COLOR _"Recomposing Red" '(255 0 0)
SF-COLOR _"Additive Yellow" '(255 255 0)
SF-TOGGLE _"Sharpen" TRUE
)
(script-fu-menu-register "elsamuko-technicolor-2-color" _"<Image>/Colors")
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