/usr/share/gimp/2.0/scripts/egger-stair-Interpolation.scm is in gimp-plugin-registry 5.20120621ubuntu3.
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 | ;
; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; Stair Interpolation, V2.0 for GIMP 2.4
; Original author: Martin Egger (martin.egger@gmx.net)
; (C) 2005, Bern, Switzerland
;
; Tags: scale
;
;
;
; The image will be enlarged in 10% steps up to the specified factor using
; best available (=cubic) interpolation.
;
; --------------------------------------------------------------------
; Distributed by Gimp FX Foundry project
; --------------------------------------------------------------------
; - Changelog -
;
; --------------------------------------------------------------------
;
; 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 2 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.
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;.
;
(define (script-fu-Eg-StairInterpolation InImage InLayer InFactor)
;
(let* (
(TheImage (car (gimp-image-duplicate InImage)))
(TheLayer (car (gimp-image-flatten TheImage)))
(Step (* 10 (- InFactor 1)))
(TheWidth (car (gimp-image-width TheImage)))
(TheHeight (car (gimp-image-height TheImage)))
(TotWidth (* InFactor TheWidth))
(TotHeight (* InFactor TheHeight))
(IncWidth (/ (- TotWidth TheWidth) Step))
(IncHeight (/ (- TotHeight TheHeight) Step))
(Counter 1)
)
(gimp-image-undo-disable TheImage)
(gimp-selection-none TheImage)
;
; Resize the image
;
(while (<= Counter Step)
;
(let* (
(NewWidth (+ TheWidth (* Counter IncWidth)))
(NewHeight (+ TheHeight (* Counter IncHeight)))
)
(gimp-drawable-transform-scale TheLayer 0.0 0.0 NewWidth NewHeight TRANSFORM-FORWARD INTERPOLATION-CUBIC TRUE 3 FALSE)
)
(set! Counter (+ Counter 1))
)
(gimp-image-resize-to-layers TheImage)
(gimp-display-new TheImage)
(gimp-drawable-set-name TheLayer _"Stair Interpolated")
(gimp-image-undo-enable TheImage)
)
;
; Finish work
;
(gimp-displays-flush)
;
)
;
; Register the function with the GIMP
;
(script-fu-register
"script-fu-Eg-StairInterpolation"
_"_Stair Scaleup"
_"Scale up images with minimal cost in quality but larger cost in time. Enlarges the image step by step"
"Martin Egger (martin.egger@gmx.net)"
"2005, Martin Egger, Bern, Switzerland"
"31.05.2005"
"RGB* GRAY*"
SF-IMAGE "The Image" 0
SF-DRAWABLE "The Layer" 0
SF-ADJUSTMENT _"Factor" '(1.0 1.0 3.0 0.1 0 2 0)
)
(script-fu-menu-register "script-fu-Eg-StairInterpolation"
"<Image>/Filters/Eg")
;
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