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) 24 extern "C" { 25 #endif 26 27 typedef enum 28 { 29 UndefinedDitherMethod, 30 NoDitherMethod, 31 RiemersmaDitherMethod, 32 FloydSteinbergDitherMethod 33 } DitherMethod; 34 35 typedef 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 56 extern 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 65 extern MagickExport QuantizeInfo 66 *AcquireQuantizeInfo(const ImageInfo *), 67 *CloneQuantizeInfo(const QuantizeInfo *), 68 *DestroyQuantizeInfo(QuantizeInfo *); 69 70 extern MagickExport void 71 GetQuantizeInfo(QuantizeInfo *); 72 73 #if defined(__cplusplus) || defined(c_plusplus) 74 } 75 #endif 76 77 #endif 78