1/*
2  Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization
3  dedicated to making software imaging solutions freely available.
4
5  You may not use this file except in compliance with the License.
6  obtain a copy of the License at
7
8    http://www.imagemagick.org/script/license.php
9
10  Unless required by applicable law or agreed to in writing, software
11  distributed under the License is distributed on an "AS IS" BASIS,
12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  See the License for the specific language governing permissions and
14  limitations under the License.
15
16  MagickCore image quantization methods.
17*/
18#ifndef MAGICKCORE_QUANTIZE_H
19#define MAGICKCORE_QUANTIZE_H
20
21#include "MagickCore/colorspace.h"
22
23#if defined(__cplusplus) || defined(c_plusplus)
24extern "C" {
25#endif
26
27typedef enum
28{
29  UndefinedDitherMethod,
30  NoDitherMethod,
31  RiemersmaDitherMethod,
32  FloydSteinbergDitherMethod
33} DitherMethod;
34
35typedef struct _QuantizeInfo
36{
37  size_t
38    number_colors;     /* desired maximum number of colors */
39
40  size_t
41    tree_depth;
42
43  ColorspaceType
44    colorspace;
45
46  DitherMethod
47    dither_method;
48
49  MagickBooleanType
50    measure_error;
51
52  size_t
53    signature;
54} QuantizeInfo;
55
56extern MagickExport MagickBooleanType
57  CompressImageColormap(Image *,ExceptionInfo *),
58  GetImageQuantizeError(Image *,ExceptionInfo *),
59  PosterizeImage(Image *,const size_t,const DitherMethod,ExceptionInfo *),
60  QuantizeImage(const QuantizeInfo *,Image *,ExceptionInfo *),
61  QuantizeImages(const QuantizeInfo *,Image *,ExceptionInfo *),
62  RemapImage(const QuantizeInfo *,Image *,const Image *,ExceptionInfo *),
63  RemapImages(const QuantizeInfo *,Image *,const Image *,ExceptionInfo *);
64
65extern MagickExport QuantizeInfo
66  *AcquireQuantizeInfo(const ImageInfo *),
67  *CloneQuantizeInfo(const QuantizeInfo *),
68  *DestroyQuantizeInfo(QuantizeInfo *);
69
70extern MagickExport void
71  GetQuantizeInfo(QuantizeInfo *);
72
73#if defined(__cplusplus) || defined(c_plusplus)
74}
75#endif
76
77#endif
78