/usr/share/gimp/2.0/scripts/unsharp-mask.scm is in gimp-data 2.6.12-1ubuntu1.4.
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 | ;;; unsharp-mask.scm
;;; Time-stamp: <1998/11/17 13:18:39 narazaki@gimp.org>
;;; Author: Narazaki Shuji <narazaki@gimp.org>
;;; Version 0.8
(define (script-fu-unsharp-mask img drw mask-size mask-opacity)
(let* (
(drawable-width (car (gimp-drawable-width drw)))
(drawable-height (car (gimp-drawable-height drw)))
(new-image (car (gimp-image-new drawable-width drawable-height RGB)))
(original-layer (car (gimp-layer-new new-image
drawable-width drawable-height
RGB-IMAGE "Original"
100 NORMAL-MODE)))
(original-layer-for-darker 0)
(original-layer-for-lighter 0)
(blured-layer-for-darker 0)
(blured-layer-for-lighter 0)
(darker-layer 0)
(lighter-layer 0)
)
(gimp-selection-all img)
(gimp-edit-copy drw)
(gimp-image-undo-disable new-image)
(gimp-image-add-layer new-image original-layer 0)
(gimp-floating-sel-anchor
(car (gimp-edit-paste original-layer FALSE)))
(set! original-layer-for-darker (car (gimp-layer-copy original-layer TRUE)))
(set! original-layer-for-lighter (car (gimp-layer-copy original-layer TRUE)))
(set! blured-layer-for-darker (car (gimp-layer-copy original-layer TRUE)))
(gimp-drawable-set-visible original-layer FALSE)
(gimp-display-new new-image)
;; make darker mask
(gimp-image-add-layer new-image blured-layer-for-darker -1)
(plug-in-gauss-iir RUN-NONINTERACTIVE
new-image blured-layer-for-darker mask-size TRUE TRUE)
(set! blured-layer-for-lighter
(car (gimp-layer-copy blured-layer-for-darker TRUE)))
(gimp-image-add-layer new-image original-layer-for-darker -1)
(gimp-layer-set-mode original-layer-for-darker SUBTRACT-MODE)
(set! darker-layer
(car (gimp-image-merge-visible-layers new-image CLIP-TO-IMAGE)))
(gimp-drawable-set-name darker-layer "darker mask")
(gimp-drawable-set-visible darker-layer FALSE)
;; make lighter mask
(gimp-image-add-layer new-image original-layer-for-lighter -1)
(gimp-image-add-layer new-image blured-layer-for-lighter -1)
(gimp-layer-set-mode blured-layer-for-lighter SUBTRACT-MODE)
(set! lighter-layer
(car (gimp-image-merge-visible-layers new-image CLIP-TO-IMAGE)))
(gimp-drawable-set-name lighter-layer "lighter mask")
;; combine them
(gimp-drawable-set-visible original-layer TRUE)
(gimp-layer-set-mode darker-layer SUBTRACT-MODE)
(gimp-layer-set-opacity darker-layer mask-opacity)
(gimp-drawable-set-visible darker-layer TRUE)
(gimp-layer-set-mode lighter-layer ADDITION-MODE)
(gimp-layer-set-opacity lighter-layer mask-opacity)
(gimp-drawable-set-visible lighter-layer TRUE)
(gimp-image-undo-enable new-image)
(gimp-displays-flush)
)
)
(script-fu-register "script-fu-unsharp-mask"
"Unsharp Mask..."
"Make a new image from the current layer by applying the unsharp mask method"
"Shuji Narazaki <narazaki@gimp.org>"
"Shuji Narazaki"
"1997,1998"
""
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable to apply" 0
SF-ADJUSTMENT _"Mask size" '(5 1 100 1 1 0 1)
SF-ADJUSTMENT _"Mask opacity" '(50 0 100 1 1 0 1)
)
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