/*############################################################################# * 文件名：img_morphology.c * 功能：  實(shí)現(xiàn)了主要的圖像形態(tài)學(xué)操作 * modified by  PRTsinghua@hotmail.com#############################################################################*/#include "img_base.h"#include <string.h>#define P(x,y)      p[(x)+(y)*pitch]/******************************************************************************  * 功能：圖像膨脹算法  * 參數(shù)：image   指紋圖像  * 返回：錯(cuò)誤編號(hào)******************************************************************************/FvsError_t ImageDilate(FvsImage_t image){    FvsInt_t w      = ImageGetWidth (image);    FvsInt_t h      = ImageGetHeight(image);    FvsInt_t pitch  = ImageGetPitch (image);    FvsInt_t size   = ImageGetSize  (image);    FvsByte_t* p    = ImageGetBuffer(image);    FvsInt_t x,y;    if (p==NULL)        return FvsMemory;        for (y=1; y<h-1; y++)    for (x=1; x<w-1; x++)    {        if (P(x,y)==0xFF)        {            P(x-1, y) |= 0x80;            P(x+1, y) |= 0x80;            P(x, y-1) |= 0x80;            P(x, y+1) |= 0x80;        }    }    for (y=0; y<size; y++)        if (p[y])            p[y] = 0xFF;    return FvsOK;}/******************************************************************************  * 功能：圖像腐蝕算法  * 參數(shù)：image   指紋圖像  * 返回：錯(cuò)誤編號(hào)******************************************************************************/FvsError_t ImageErode(FvsImage_t image){    FvsInt_t w      = ImageGetWidth (image);    FvsInt_t h      = ImageGetHeight(image);    FvsInt_t pitch  = ImageGetPitch (image);    FvsInt_t size   = ImageGetSize  (image);    FvsByte_t* p    = ImageGetBuffer(image);    FvsInt_t x,y;        if (p==NULL)        return FvsMemory;        for (y=1; y<h-1; y++)    for (x=1; x<w-1; x++)    {        if (P(x,y)==0x0)        {            P(x-1, y) &= 0x80;            P(x+1, y) &= 0x80;            P(x, y-1) &= 0x80;            P(x, y+1) &= 0x80;        }    }    for (y=0; y<size; y++)        if (p[y]!=0xFF)            p[y] = 0x0;    return FvsOK;}