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