/* This file is an image processing operation for GEGL
*
* GEGL is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* GEGL 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2006, 2010 Øyvind Kolås <pippin@gimp.org>
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#ifdef GEGL_CHANT_PROPERTIES
gegl_chant_double_ui (std_dev, _("Std. Dev."), 0.0, 500.0, 1.0, 0.0, 200.0, 1.5,
_("Standard deviation (spatial scale factor)"))
gegl_chant_double_ui (scale, _("Scale"), 0.0, 100.0, 1.0, 0.0, 100.0, 1.5,
_("Scale, strength of effect"))
#else
#define GEGL_CHANT_TYPE_META
#define GEGL_CHANT_C_FILE "unsharp-mask.c"
#include "gegl-chant.h"
static void attach (GeglOperation *operation)
{
GeglNode *gegl, *input, *output, *add, *multiply, *subtract, *blur;
gegl = operation->node;
input = gegl_node_get_input_proxy (gegl, "input");
output = gegl_node_get_output_proxy (gegl, "output");
add = gegl_node_new_child (gegl, "operation", "gegl:add", NULL);
multiply = gegl_node_new_child (gegl, "operation", "gegl:multiply", NULL);
subtract = gegl_node_new_child (gegl, "operation", "gegl:subtract", NULL);
blur = gegl_node_new_child (gegl, "operation", "gegl:gaussian-blur",NULL);
gegl_node_link_many (input, subtract, multiply, NULL);
gegl_node_link (input, blur);
gegl_node_link_many (multiply, add, output, NULL);
gegl_node_connect_from (subtract, "aux", blur, "output");
gegl_node_connect_from (add, "aux", input, "output");
gegl_operation_meta_redirect (operation, "scale", multiply, "value");
gegl_operation_meta_redirect (operation, "std-dev", blur, "std-dev-x");
gegl_operation_meta_redirect (operation, "std-dev", blur, "std-dev-y");
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
operation_class = GEGL_OPERATION_CLASS (klass);
operation_class->attach = attach;
gegl_operation_class_set_keys (operation_class,
"name" , "gegl:unsharp-mask",
"categories" , "meta:enhance",
"description",
_("Performs an unsharp mask on the input buffer (sharpens an image by "
"adding false mach-bands around edges)"),
NULL);
}
#endif