rowley.cpp

这是个人脸识别程序

// $rowley.cpp 1.5 milbo$ interface between ASM software and Rowley face detector
//-----------------------------------------------------------------------------
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// A copy of the GNU General Public License is available at
// http://www.r-project.org/Licenses/
//-----------------------------------------------------------------------------

#include "all.hpp"

//-----------------------------------------------------------------------------
// Returns with face and eye positions in Shape.
// Face is a "Rowley global detector shape", with NBR_ROWLEY_POINTS points.
// See DETECTOR_ defs in landmarks.hpp for point names.
// If it can't find a face (with two eyes), we exit with an error message.

bool
fRowleyFindFace (SHAPE &Shape,                                      // out
        Image &Img, const char sImageFile[], const char sDataDir[]) // in
{
bool fSuccess = true;
Shape.dimClear(NBR_ROWLEY_POINTS, 2);

tFaceEyeLocation *pLocations;   // found face and eye coords go into this array
int nFaces = Track_FindAllFaces(&pLocations, Img, sDataDir);

// choose biggest face with both eyes

int iBest = 0, nMaxWidth = 0;
for (int iFace = 0; iFace < nFaces; iFace++)
    if (pLocations[iFace].xLeftEye > 0 && 
            pLocations[iFace].xRightEye > 0 &&
            pLocations[iFace].x2 - pLocations[iFace].x1 > nMaxWidth)
        {
        iBest = iFace;
        nMaxWidth = pLocations[iFace].x2 - pLocations[iFace].x1;
        }

if (nFaces < 1)
	{
	fSuccess = false;
    lprintf("\nRowley detector found no faces in %s\n", sImageFile);
	}
if (pLocations[iBest].xLeftEye <= 0)
	{
	fSuccess = false;
    lprintf("\nRowley detector didn't find the left eye in %s\n", sImageFile);
	}
if (pLocations[iBest].xRightEye <= 0)
	{
	fSuccess = false;
    lprintf("\nRowley detector didn't find the right eye in %s\n", sImageFile);
	}
// Write the global detector shape into Shape.
// The macros convert Rowley shape coords to our internal shape coords.

#define X(x)    (double)((x) - Img.width / 2)
#define Y(y)    (double)(Img.height / 2 - (y))

Shape(DETECTOR_TopLeft, VX)  = X(pLocations[iBest].x1);
Shape(DETECTOR_TopLeft, VY)  = Y(pLocations[iBest].y1);
Shape(DETECTOR_BotRight, VX) = X(pLocations[iBest].x2);
Shape(DETECTOR_BotRight, VY) = Y(pLocations[iBest].y2);
Shape(DETECTOR_LEye, VX)     = X(pLocations[iBest].xRightEye);
Shape(DETECTOR_LEye, VY)     = Y(pLocations[iBest].yRightEye);
Shape(DETECTOR_REye, VX)     = X(pLocations[iBest].xLeftEye);
Shape(DETECTOR_REye, VY)     = Y(pLocations[iBest].yLeftEye);

free(pLocations);

return fSuccess;
}