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/* This file is an image processing operation for GEGL
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*
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* GEGL is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* GEGL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2006, 2010 Øyvind Kolås <pippin@gimp.org>
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*/
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#include "config.h"
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#include <glib/gi18n-lib.h>
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#ifdef GEGL_CHANT_PROPERTIES
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gegl_chant_double_ui (std_dev, _("Std. Dev."), 0.0, 500.0, 1.0, 0.0, 200.0, 1.5,
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_("Standard deviation (spatial scale factor)"))
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gegl_chant_double_ui (scale, _("Scale"), 0.0, 100.0, 1.0, 0.0, 100.0, 1.5,
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_("Scale, strength of effect"))
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#else
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#define GEGL_CHANT_TYPE_META
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#define GEGL_CHANT_C_FILE "unsharp-mask.c"
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#include "gegl-chant.h"
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static void attach (GeglOperation *operation)
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{
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GeglNode *gegl, *input, *output, *add, *multiply, *subtract, *blur;
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gegl = operation->node;
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input = gegl_node_get_input_proxy (gegl, "input");
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output = gegl_node_get_output_proxy (gegl, "output");
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add = gegl_node_new_child (gegl, "operation", "gegl:add", NULL);
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multiply = gegl_node_new_child (gegl, "operation", "gegl:multiply", NULL);
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subtract = gegl_node_new_child (gegl, "operation", "gegl:subtract", NULL);
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blur = gegl_node_new_child (gegl, "operation", "gegl:gaussian-blur",NULL);
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gegl_node_link_many (input, subtract, multiply, NULL);
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gegl_node_link (input, blur);
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gegl_node_link_many (multiply, add, output, NULL);
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gegl_node_connect_from (subtract, "aux", blur, "output");
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gegl_node_connect_from (add, "aux", input, "output");
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gegl_operation_meta_redirect (operation, "scale", multiply, "value");
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gegl_operation_meta_redirect (operation, "std-dev", blur, "std-dev-x");
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gegl_operation_meta_redirect (operation, "std-dev", blur, "std-dev-y");
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}
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static void
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gegl_chant_class_init (GeglChantClass *klass)
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{
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GeglOperationClass *operation_class;
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operation_class = GEGL_OPERATION_CLASS (klass);
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operation_class->attach = attach;
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gegl_operation_class_set_keys (operation_class,
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"name" , "gegl:unsharp-mask",
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"categories" , "meta:enhance",
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"description",
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_("Performs an unsharp mask on the input buffer (sharpens an image by "
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"adding false mach-bands around edges)"),
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NULL);
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}
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#endif
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