/* * Copyright (C) 2008 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef bbf_SCANNER_EM_H #define bbf_SCANNER_EM_H /* ---- includes ----------------------------------------------------------- */ #include "b_BasicEm/Context.h" #include "b_BasicEm/Basic.h" #include "b_BasicEm/UInt32Arr.h" #include "b_BasicEm/Int32Arr.h" #include "b_BasicEm/Int16Arr.h" #include "b_BasicEm/MemTbl.h" #include "b_BasicEm/UInt16Arr.h" #include "b_ImageEm/UInt32Image.h" #include "b_BitFeatureEm/Feature.h" #include "b_BitFeatureEm/BitParam.h" /* ---- related objects --------------------------------------------------- */ /* ---- typedefs ----------------------------------------------------------- */ /* ---- constants ---------------------------------------------------------- */ /* data format version number */ #define bbf_SCANNER_VERSION 100 /* ---- object definition -------------------------------------------------- */ /** scans an image and provides patches as needed */ struct bbf_Scanner { /* ---- private data --------------------------------------------------- */ /** downscale exponent */ uint32 scaleExpE; /** current scale (12.20) */ uint32 scaleE; /** current scan x-coordinate */ int32 xE; /** current scan y-coordinate */ int32 yE; /** effective maximum scale (12.20) */ uint32 effMaxScaleE; /** width of scaled image */ uint32 currentWidthE; /** height of scaled image */ uint32 currentHeightE; /** width of work image */ uint32 workWidthE; /** height of work image */ uint32 workHeightE; /** parameter for bit generation */ struct bbf_BitParam bitParamE; /** work image (two pixels per uint16)*/ struct bbs_UInt16Arr workImageE; /** summed-area table (ring buffer) */ struct bim_UInt32Image satE; /** bit image */ struct bim_UInt32Image bitImageE; /** patch buffer */ struct bbs_UInt32Arr patchBufferE; /** image line buffer */ struct bbs_UInt16Arr lineBufE; /** index position buffer */ struct bbs_UInt32Arr idxArrE; /** activity buffer */ struct bbs_Int32Arr actArrE; /** composite output buffer */ struct bbs_Int32Arr outArrE; /* internal positions detected */ uint32 intCountE; /* output positions detected */ uint32 outCountE; /** Face positions buffer size (approx.: max faces * 20...60) * This variable is not part of I/O and must be set before calling memRead * Default value: 1024 -> about 100...200 faces/image detectable * * The Scanner allocates internally bufferSizeE * 10 bytes of exclusive memory */ uint32 bufferSizeE; /* ---- public data ---------------------------------------------------- */ /** maximum image width */ uint32 maxImageWidthE; /** maximum image height */ uint32 maxImageHeightE; /** maximum filter radius */ uint32 maxRadiusE; /** patch width */ uint32 patchWidthE; /** patch height */ uint32 patchHeightE; /** minimum scale (12.20) */ uint32 minScaleE; /** maximum scale (12.20) (0: unlimited) */ uint32 maxScaleE; /** scale step factor (1.32) (leading bit is always one and therfore ignored) */ uint32 scaleStepE; /** x-border in pixels */ uint32 borderWidthE; /** y-border in pixels */ uint32 borderHeightE; }; /* ---- associated objects ------------------------------------------------- */ /* ---- external functions ------------------------------------------------- */ /* ---- \ghd{ constructor/destructor } ------------------------------------- */ /** initializes bbf_Scanner */ void bbf_Scanner_init( struct bbs_Context* cpA, struct bbf_Scanner* ptrA ); /** resets bbf_Scanner */ void bbf_Scanner_exit( struct bbs_Context* cpA, struct bbf_Scanner* ptrA ); /* ---- \ghd{ operators } -------------------------------------------------- */ /** copy operator */ void bbf_Scanner_copy( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, const struct bbf_Scanner* srcPtrA ); /** equal operator */ flag bbf_Scanner_equal( struct bbs_Context* cpA, const struct bbf_Scanner* ptrA, const struct bbf_Scanner* srcPtrA ); /* ---- \ghd{ query functions } -------------------------------------------- */ /** scan positions at current scale */ uint32 bbf_Scanner_positions( const struct bbf_Scanner* ptrA ); /** current scan index */ uint32 bbf_Scanner_scanIndex( const struct bbf_Scanner* ptrA ); /** returns current uls position relative to original image; x,y: 16.16; scale: 12.20 */ void bbf_Scanner_pos( const struct bbf_Scanner* ptrA, int32* xPtrA, int32* yPtrA, uint32* scalePtrA ); /** returns uls position relative to original image at index position; x,y: 16.16; scale: 12.20 */ void bbf_Scanner_idxPos( const struct bbf_Scanner* ptrA, uint32 scanIndexA, int32* xPtrA, int32* yPtrA, uint32* scalePtrA ); /* ---- \ghd{ modify functions } ------------------------------------------- */ /** creates & initializes object */ void bbf_Scanner_create( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, flag maximizeSharedMemoryA, uint32 maxImageWidthA, uint32 maxImageHeightA, uint32 maxRadiusA, uint32 patchWidthA, uint32 patchHeightA, uint32 minScaleA, uint32 maxScaleA, uint32 scaleStepA, uint32 borderWidthA, uint32 borderHeightA, uint32 bufferSizeA, struct bbs_MemTbl* mtpA ); /** parameter for bit generation + recomputing bit image */ void bbf_Scanner_bitParam( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, const struct bbf_BitParam* bitParamPtrA ); /* ---- \ghd{ memory I/O } ------------------------------------------------- */ /** word size (16-bit) object needs when written to memory */ uint32 bbf_Scanner_memSize( struct bbs_Context* cpA, const struct bbf_Scanner* ptrA ); /** writes object to memory; returns number of words (16-bit) written */ uint32 bbf_Scanner_memWrite( struct bbs_Context* cpA, const struct bbf_Scanner* ptrA, uint16* memPtrA ); /** reads object from memory; returns number of words (16-bit) read */ uint32 bbf_Scanner_memRead( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, const uint16* memPtrA, struct bbs_MemTbl* mtpA ); /* ---- \ghd{ exec functions } --------------------------------------------- */ /** resets scan position at current scale level */ void bbf_Scanner_resetScan( struct bbs_Context* cpA, struct bbf_Scanner* ptrA ); /** Assigns image; sets initial bit parameters; resets processor. * If roiPtrA is NULL, the whole image is considered for processsing * otherwise *roiPtrA specifies a section of the original image to which * procesing is limited. All coordinates refer to that section and must * eventually be corrected externally. * The roi rectangle must not include pixels outside of the original image * (checked -> error). The rectangle may be of uneven width. */ void bbf_Scanner_assign( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, const void* imagePtrA, uint32 imageWidthA, uint32 imageHeightA, const struct bts_Int16Rect* roiPtrA, const struct bbf_BitParam* paramPtrA ); /** goes to next scale position */ flag bbf_Scanner_nextScale( struct bbs_Context* cpA, struct bbf_Scanner* ptrA ); /** returns pointer to patch data */ const uint32* bbf_Scanner_getPatch( const struct bbf_Scanner* ptrA ); /** goes to next scan position */ flag bbf_Scanner_next( struct bbs_Context* cpA, struct bbf_Scanner* ptrA ); /** goes to scan position */ void bbf_Scanner_goToXY( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, int32 xA, int32 yA ); /** goes to scan index position */ void bbf_Scanner_goToIndex( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, uint32 scanIndexA ); /** goes to scan position from image uls position (error if scales do not match); x,y: 16.16; scale: 12.20 */ void bbf_Scanner_goToUls( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, int32 xA, int32 yA, uint32 scaleA ); /** The functions below offer positions management of temporary positions needed by the detector object */ /** resets internal positions */ void bbf_Scanner_resetIntPos( struct bbs_Context* cpA, struct bbf_Scanner* ptrA ); /** reset output positions */ void bbf_Scanner_resetOutPos( struct bbs_Context* cpA, struct bbf_Scanner* ptrA ) ; /* add internal position */ void bbf_Scanner_addIntPos( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, uint32 idxA, int32 actA ); /* add external position */ void bbf_Scanner_addOutPos( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, int32 xA, int32 yA, uint32 scaleA, int32 actA ); /* removes internal overlaps */ uint32 bbf_Scanner_removeIntOverlaps( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, uint32 overlapThrA ); /** removes output overlaps */ uint32 bbf_Scanner_removeOutOverlaps( struct bbs_Context* cpA, struct bbf_Scanner* ptrA, uint32 overlapThrA ); #endif /* bbf_SCANNER_EM_H */