/*############################################################################# * 文件名：fvs_enhancer.c * 功能：  指紋圖像增強 * modified by  PRTsinghua@hotmail.com#############################################################################*/#include "fvs.h"#include <stdlib.h>int main(int argc, char *argv[]){    FvsImage_t mask;    FvsImage_t image;    FvsFloatField_t direction;    FvsFloatField_t frequency;    FvsFloat_t radius = 4.0;    if (argc<3 || argc>4)    {        printf("Usage: fvs input.bmp output.bmp [radius]\n");        return -1;    }    if (argc==4)       radius = atof(argv[3]);    mask      = ImageCreate();    image     = ImageCreate();    direction = FloatFieldCreate();    frequency = FloatFieldCreate();    if (mask!=NULL && image!=NULL && direction!=NULL && frequency!=NULL)    {	fprintf(stdout, "Opening file %s...\n", argv[1]);	(void)FvsImageImport(image, argv[1]);	(void)ImageSoftenMean(image, 3);        fprintf(stdout, "1/4 Determining the ridge direction\n");        (void)FingerprintGetDirection(image, direction, 7, 8);        fprintf(stdout, "2/4 Determining the ridge frequency\n");        (void)FingerprintGetFrequency(image, direction, frequency);        fprintf(stdout, "3/4 Creating the mask\n");        (void)FingerprintGetMask(image, direction, frequency, mask);        fprintf(stdout, "4/4 Enhancing the fingerprint image\n");        (void)ImageEnhanceGabor(image, direction, frequency, NULL, radius);	fprintf(stdout, "Saving file %s...\n", argv[2]);        (void)FvsImageExport(image, argv[2]);    }    fprintf(stdout, "Cleaning up and exiting...\n");    FloatFieldDestroy(frequency);    FloatFieldDestroy(direction);    ImageDestroy(image);    ImageDestroy(mask);    return 0;}