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 image threshold methods. 17 */ 18 #ifndef MAGICKCORE_THRESHOLD_H 19 #define MAGICKCORE_THRESHOLD_H 20 21 #if defined(__cplusplus) || defined(c_plusplus) 22 extern "C" { 23 #endif 24 25 typedef enum 26 { 27 UndefinedThresholdMethod, 28 KapurThresholdMethod, 29 OTSUThresholdMethod, 30 TriangleThresholdMethod 31 } AutoThresholdMethod; 32 33 typedef struct _ThresholdMap 34 ThresholdMap; 35 36 extern MagickExport Image 37 *AdaptiveThresholdImage(const Image *,const size_t,const size_t,const double, 38 ExceptionInfo *); 39 40 extern MagickExport ThresholdMap 41 *DestroyThresholdMap(ThresholdMap *), 42 *GetThresholdMap(const char *,ExceptionInfo *); 43 44 extern MagickExport MagickBooleanType 45 AutoThresholdImage(Image *,const AutoThresholdMethod,ExceptionInfo *), 46 BilevelImage(Image *,const double,ExceptionInfo *), 47 BlackThresholdImage(Image *,const char *,ExceptionInfo *), 48 ClampImage(Image *,ExceptionInfo *), 49 ColorThresholdImage(Image *,const PixelInfo *,const PixelInfo *, 50 ExceptionInfo *), 51 ListThresholdMaps(FILE *,ExceptionInfo *), 52 OrderedDitherImage(Image *,const char *,ExceptionInfo *), 53 PerceptibleImage(Image *,const double,ExceptionInfo *), 54 RandomThresholdImage(Image *,const double,const double,ExceptionInfo *), 55 RangeThresholdImage(Image *,const double,const double,const double, 56 const double,ExceptionInfo *), 57 WhiteThresholdImage(Image *,const char *,ExceptionInfo *); 58 59 #if defined(__cplusplus) || defined(c_plusplus) 60 } 61 #endif 62 63 #endif 64