1 /* 2 Copyright 1999-2021 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. You may 6 obtain a copy of the License at 7 8 https://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 histogram methods. 17 */ 18 #ifndef MAGICKCORE_HISTOGRAM_H 19 #define MAGICKCORE_HISTOGRAM_H 20 21 #if defined(__cplusplus) || defined(c_plusplus) 22 extern "C" { 23 #endif 24 25 typedef struct _ColorPacket 26 { 27 PixelPacket 28 pixel; 29 30 IndexPacket 31 index; 32 33 MagickSizeType 34 count; 35 } ColorPacket; 36 37 extern MagickExport ColorPacket 38 *GetImageHistogram(const Image *,size_t *,ExceptionInfo *); 39 40 extern MagickExport Image 41 *UniqueImageColors(const Image *,ExceptionInfo *); 42 43 extern MagickExport MagickBooleanType 44 IdentifyPaletteImage(const Image *,ExceptionInfo *), 45 IsHistogramImage(const Image *,ExceptionInfo *), 46 IsPaletteImage(const Image *,ExceptionInfo *), 47 MinMaxStretchImage(Image *,const ChannelType,const double,const double); 48 49 extern MagickExport size_t 50 GetNumberColors(const Image *,FILE *,ExceptionInfo *); 51 52 #if defined(__cplusplus) || defined(c_plusplus) 53 } 54 #endif 55 56 #endif 57