/usr/share/gimp/2.0/scripts/elsamuko-erosion-sharpen.scm is in gimp-plugin-registry 7.20140602+b4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | ; 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) 2011 elsamuko <elsamuko@web.de>
;
(define (elsamuko-erosion-sharpen img draw op gauss_blur)
(let*
((owidth (car (gimp-image-width img)))
(oheight (car (gimp-image-height img)))
(blurred-layer (car (gimp-layer-copy draw FALSE)))
(erode-layer (car (gimp-layer-copy draw FALSE)))
(dilate-layer (car (gimp-layer-copy draw FALSE)))
(erode-layermask (car (gimp-layer-create-mask erode-layer ADD-WHITE-MASK)))
(dilate-layermask (car (gimp-layer-create-mask dilate-layer ADD-WHITE-MASK)))
(additive-layer 0)
(subtractive-layer 0)
)
;init
(gimp-context-push)
(gimp-image-undo-group-start img)
; add and blur copy
(gimp-image-add-layer img blurred-layer -1)
(gimp-drawable-set-name blurred-layer "Blurred")
(plug-in-gauss TRUE img blurred-layer gauss_blur gauss_blur TRUE)
; subtract first from second
(gimp-layer-set-mode blurred-layer SUBTRACT-MODE)
(gimp-edit-copy-visible img)
(set! subtractive-layer (car (gimp-layer-new-from-visible img img "Subtractive") ))
(gimp-image-add-layer img subtractive-layer 0)
(gimp-drawable-set-visible subtractive-layer FALSE)
; subtract second from first
(gimp-image-lower-layer img blurred-layer)
(gimp-layer-set-mode blurred-layer NORMAL-MODE)
(gimp-layer-set-mode draw SUBTRACT-MODE)
(gimp-edit-copy-visible img)
(set! additive-layer (car (gimp-layer-new-from-visible img img "Additive") ))
(gimp-image-add-layer img additive-layer 0)
; set modes back to normal
(gimp-drawable-set-visible subtractive-layer TRUE)
(gimp-layer-set-mode draw NORMAL-MODE)
; add and erode copy
(gimp-image-add-layer img erode-layer -1)
(gimp-drawable-set-name erode-layer "Erode")
(plug-in-vpropagate TRUE img erode-layer 1 1 0.7 15 0 255)
; add and dilate copy
(gimp-image-add-layer img dilate-layer -1)
(gimp-drawable-set-name dilate-layer "Dilate")
(plug-in-vpropagate TRUE img dilate-layer 0 1 0.7 15 0 255)
; add layer masks
(gimp-layer-add-mask erode-layer erode-layermask)
(gimp-selection-all img)
(gimp-edit-copy additive-layer)
(gimp-floating-sel-anchor (car (gimp-edit-paste erode-layermask TRUE)))
(gimp-layer-add-mask dilate-layer dilate-layermask)
(gimp-selection-all img)
(gimp-edit-copy subtractive-layer)
(gimp-floating-sel-anchor (car (gimp-edit-paste dilate-layermask TRUE)))
; adjust levels
(gimp-levels erode-layermask HISTOGRAM-VALUE 0 30 2 0 255)
(gimp-levels dilate-layermask HISTOGRAM-VALUE 0 30 2 0 255)
; anti aliasing of layer masks
(plug-in-antialias TRUE img erode-layermask)
(plug-in-antialias TRUE img dilate-layermask)
; adjust levels 2nd
(gimp-levels erode-layermask HISTOGRAM-VALUE 0 128 2 0 255)
(gimp-levels dilate-layermask HISTOGRAM-VALUE 0 128 2 0 255)
; anti aliasing of layer masks 2nd
(plug-in-antialias TRUE img erode-layermask)
(plug-in-antialias TRUE img dilate-layermask)
; remove unnecessary layers
(gimp-image-remove-layer img subtractive-layer)
(gimp-image-remove-layer img additive-layer)
(gimp-image-remove-layer img blurred-layer)
; set opacities
(gimp-layer-set-opacity erode-layer op)
(gimp-layer-set-opacity dilate-layer op)
; tidy up
(gimp-image-undo-group-end img)
(gimp-displays-flush)
(gimp-context-pop)
)
)
(script-fu-register "elsamuko-erosion-sharpen"
_"_Erosion Sharpen"
"Sharpens the image with erosion and dilation"
"elsamuko <elsamuko@web.de>"
"elsamuko"
"10/10/11"
"*"
SF-IMAGE "Input image" 0
SF-DRAWABLE "Input drawable" 0
SF-ADJUSTMENT _"Strength" '(60 0 100 1 20 0 0)
SF-ADJUSTMENT _"Radius" '(2 1 20 1 5 0 0)
)
(script-fu-menu-register "elsamuko-erosion-sharpen" _"<Image>/Filters/Enhance")
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