Home | History | Annotate | Download | only in b_ImageEm
      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      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 
     17 #ifndef bim_HISTOEQ16_EM_H
     18 #define bim_HISTOEQ16_EM_H
     19 
     20 /* ---- includes ----------------------------------------------------------- */
     21 
     22 /* ---- related objects  --------------------------------------------------- */
     23 
     24 struct bim_UInt16ByteImage;
     25 struct bts_Int16Rect;
     26 
     27 /* ---- typedefs ----------------------------------------------------------- */
     28 
     29 /* ---- constants ---------------------------------------------------------- */
     30 
     31 /* ---- external functions ------------------------------------------------- */
     32 
     33 /** Histogram equalization of image */
     34 void bim_UInt16ByteImage_equalize( struct bim_UInt16ByteImage* imagePtrA );
     35 
     36 /** Histogram equalization using histogram generated from subregion.
     37   * While the histogram is taken only in the specified sub-section of the
     38   * image, the equalization, i.e. remapping of the pixel values, is
     39   * performed on the whole image.
     40   *
     41   * @param imagePtrA    pointer to image to be equalized
     42   * @param sectionPtrA  section specifying region in image where histogram is
     43   *                     generated from
     44   */
     45 void bim_UInt16ByteImage_equalizeSection( struct bim_UInt16ByteImage* imagePtrA,
     46 										  const struct bts_Int16Rect* sectionPtrA );
     47 
     48 /* ------------------------------------------------------------------------- */
     49 
     50 #endif /* bim_HISTOEQ16_EM_H */
     51 
     52