/usr/share/gimp/2.0/scripts/hall-edge-mask-sharpen.scm is in gimp-plugin-registry 5.20120621ubuntu3.
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; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; Hall Smart Sharpen script for GIMP 2.4
; Copyright (c) 2004-2005 John Hall (jhall@gimpfaq.org)
; Modified 2006/07/09 Ade Rixon (ade.rixon@NOTTHISBIT.bigfoot.com,
; http://www.big-bubbles.fluff.org)
;
; Tags: photo, sharpen
;
; Author statement:
;
;;; A Script-Fu script for The GIMP to automate "smart" sharpening
;;; technique.
;;;
;;
;; This technique is described by Eric R. Jeschke here:
;; http://gimpguru.org/Tutorials/SmartSharpening2/
;;
;; However, he adapted this technique for The GIMP from a sharpening
;; article by Bruce Fraser on the creativepro.com web site:
;; http://www.creativepro.com/printerfriendly/story/20357.html
;
; --------------------------------------------------------------------
; Distributed by Gimp FX Foundry project
; --------------------------------------------------------------------
; - Changelog -
;
; v0.3b: - Handle grayscale images; ajr
; v0.3a: - Change USM & edge-detect params via dialog; ajr
; v0.3: - Cleaned up code
; v0.2: - Modified for The GIMP 2.0pre2
; v0.1: - First public release
; Updated for GIMP 2.4 by Paul Sherman
; --------------------------------------------------------------------
;
; 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-edge-mask-sharpen image drawable inAmount inRadius inDespeckle)
;; Uses a logarithmic scale to calculate a reasonable amount for
;; edge detection.
(define (get-edge-amount width height)
(min (max (* 3.5 (log (/ (* width height) 1000000)))
1.0)
10.0))
(let* ((width (car (gimp-image-width image)))
(height (car (gimp-image-height image)))
(edge-amount (get-edge-amount width height))
(blur-radius (+ 1 edge-amount))
(edge-image (car (gimp-image-duplicate image)))
(edge-drawable (car (gimp-image-flatten edge-image)))
;;(image-type (car (gimp-image-base-type edge-image)))
(value-image (cond ((= (car (gimp-image-base-type image)) RGB)
;; decompose to value part if RGB image
(caddr (plug-in-decompose TRUE
edge-image
edge-drawable
"HSV"
FALSE))
)
;; else just copy if gray
(t
(car (gimp-image-duplicate edge-image))
)
))
(value-drawable (car (gimp-image-get-active-layer value-image)))
(sharpen-layer (car (gimp-layer-new image
(car (gimp-image-width image))
(car (gimp-image-height image))
(car (gimp-drawable-type-with-alpha drawable))
_"Sharpening"
80.0
VALUE-MODE)))
(sharpen-layer-mask (car (gimp-layer-create-mask sharpen-layer
WHITE-MASK))))
(gimp-image-undo-group-start image)
;; Apply an unsharp mask to the value image
(plug-in-unsharp-mask TRUE value-image value-drawable inRadius inAmount 0)
;; Copy value image to sharpen layer
(gimp-image-add-layer image sharpen-layer -1)
(gimp-edit-copy value-drawable)
(gimp-floating-sel-anchor (car (gimp-edit-paste sharpen-layer TRUE)))
;; Despeckle edge image to remove noise (grain)
(if (= inDespeckle TRUE)
(plug-in-despeckle TRUE edge-image edge-drawable 3 1 3 248)
)
;; Adjust the tonality so that areas that need sharpening are
;; white and everything else is black (this will become the
;; sharpening mask). The input levels were picked arbitrarily,
;; but they seem to work for me.
(plug-in-edge TRUE edge-image edge-drawable edge-amount 1 0)
(if (= (car (gimp-image-base-type image)) RGB)
(gimp-image-convert-grayscale edge-image))
(gimp-levels edge-drawable VALUE-LUT 40 200 0.90 0 255)
(plug-in-gauss-iir2 TRUE edge-image edge-drawable blur-radius blur-radius)
(gimp-levels-stretch edge-drawable)
;; Copy edge image to sharpen layer mask
(gimp-layer-add-mask sharpen-layer sharpen-layer-mask)
(gimp-edit-copy edge-drawable)
(gimp-floating-sel-anchor (car (gimp-edit-paste sharpen-layer-mask TRUE)))
(gimp-image-delete edge-image)
(gimp-image-undo-group-end image)
(gimp-displays-flush)
(list image)))
(script-fu-register "script-fu-edge-mask-sharpen"
_"Edge Mask Sharpen"
_"Perform a smart sharpen on an image."
"John Hall"
"John Hall"
"2004-2005"
"RGB* GRAY*"
SF-IMAGE "The image" 0
SF-DRAWABLE "The layer (not used)" 0
SF-ADJUSTMENT _"Amount of USM" '(1.5 0 10 0.01 0.01 2 0)
SF-ADJUSTMENT _"Radius of USM" '(1.0 0 20 0.01 0.01 2 0)
SF-TOGGLE _"Despeckle" FALSE
)
(script-fu-menu-register "script-fu-edge-mask-sharpen"
"<Image>/FX-Foundry/Photo/Sharpen")
|