1 // 2 // PRGrayscaleFilter.h 3 // PRICE 4 // 5 // Created by Riccardo Mottola on Mon Dec 23 2002. 6 // Copyright (c) 2002-2008 Carduus. All rights reserved. 7 // 8 // This application 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. 9 // 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. 10 11 12 #import <AppKit/AppKit.h> 13 #import "PRFilter.h" 14 15 #define METHOD_AVERAGE 1 16 #define METHOD_LUMINANCE 2 17 18 @interface PRGrayscaleFilter : PRFilter 19 { 20 21 } 22 - (PRImage *)filterImage:(PRImage *)srcImage :(int)method; 23 24 @end 25