#pragma once
#include "Card.h"

// routines for one bit binary (bitmap) images
class CBitmap {
public:
    CBitmap();			// not used
    CBitmap(Mat m, uchar match); // create bitmap from openCV mat.
    CBitmap(FILE* f);		 // create bitmap from an open file
    float correlate(CBitmap cb2, bool fromTop); // return the correlation of two bitmaps.
    Mat b2Mat();				// create openCV Mat from bitmap
    int write(FILE* f);				// write bitmap to an open file
    int read(FILE* f);				// read bitmap from open file


    int nRows;
    int nCols;
    int bytesRow;
    uchar* data;
private:
    void initOnes();		// initialize bit tables
    static uchar nOnes[256];	// given a UCHAR value, return the # of one bits.
    static uchar oneShift[8];	// table lookup for 1 << index, we think it's faster than inline.
};