int TGAtoPPM(char *tgaFile, char *ppmFile){
int type = CheckTGA(tgaFile);
/*if the tga file isn't supported return error*/
if(type == ERRORTGA){
Error("ERROR: the TGA file is corrupted or not supported!\n");
return ERROR;
}
/*load image*/
Image *image;
if(type == TGA2LL)
image = LoadTGA2LL(tgaFile);
else if(type == TGA2UL)
image = LoadTGA2UL(tgaFile);
if(!image){
Error("ERROR: TGA file could not be loaded");
return ERROR;
}
/*dump image*/
DumpToPPM(ppmFile, *image);
ImageDestroy(&image);
return SUCCESS;
}
int PPMtoTGA(char *ppmFile, char *tgaFile){
int type = CheckPPM(ppmFile);
/*if the ppm file isn't supported return error*/
if(type == ERRORPPM){
Error("ERROR: the PPM file is corrupted or not supported!\n");
return ERROR;
}
/*load image*/
Image *image;
if(type == ASCIIPPM)
image = LoadPPMAscii(ppmFile);
else if(type == BINARYPPM)
image = LoadPPMBinary(ppmFile);
if(!image){
Error("ERROR: PPM file could not be loaded");
return ERROR;
}
/*dump image*/
DumpToTGA(tgaFile, *image);
ImageDestroy(&image);
return SUCCESS;
}
//===========================================================================
void Finalizar(int restart)
{
if (!restart)
{
DiskDestroy();
ImageDestroy();
ImpressoraFinaliza();
}
CpuDestroy();
MemDestroy();
TapeFinaliza();
SpkrDestroy();
VideoDestroy();
Timer_UninitTimer();
KeybFinaliza();
}
/**
* 函数描述：
* 将指纹对象image保存到指纹数据库中，
* 可用的ID而且没有重复指纹保存成功后返回该指纹的ID号
* 参数：
* rgb24_buf : 24bit RGB图像缓冲区
* width ： 图像宽度
* height : 图像高度
* id : 该指纹保存的ID
* 返回值：
* 验证通过则返回FvsOK，否则放回FvsError_t错误码。
**/
FvsError_t
fp_store(FvsByte_t *rgb24_buf, FvsInt_t width,
FvsInt_t height, FvsInt_t *id)
{
FvsError_t err;
FvsInt_t goodness;
FvsInt_t i;
FvsImage_t image, mask;
FvsMinutiaSet_t exist_minutias, new_minutias;
DP("Store width : %d, height : %d.\n", width, height);
image = ImageCreate();
if (FvsOK != (err = ImageSetSize(image, width, height))) {
return err;
}
if (FvsOK != (err = rgb24_to_image(rgb24_buf, image))) {
ImageDestroy(image);
return err;
}
/* process source image */
mask = ImageCreate();
err = ImageSetSize(mask, ImageGetWidth(image), ImageGetHeight(image));
if (FvsOK != err) {
return err;
}
new_minutias = MinutiaSetCreate(MAXMINUTIA);
exist_minutias = MinutiaSetCreate(MAXMINUTIA);
if (FvsOK != (err = img_to_minutias(image,mask,new_minutias))) {
ImageDestroy(image);
ImageDestroy(mask);
MinutiaSetDestroy(new_minutias);
MinutiaSetDestroy(exist_minutias);
return err;
}
/* 暂时跳过指纹重复检测 */
#if 0
/* 保存指纹之前检查是否有指纹重复 */
for (i = 0; i < MAX_FINGER_NO ; i++) {
if (fdb_id_is_used(i) != ID_USED){
continue;
}
if (FvsOK != (err = fdb_load_minutias(i, exist_minutias))) {
return err;
}
err = MatchingCompareMinutiaSets(new_minutias, exist_minutias, &goodness);
if (FvsOK != err) {
return err;
}
if (FP_THRESHOLD >= goodness) {
break;
}
}
if (MAX_FINGER_NO == i) {
return FvsNoID;
}
#endif
if (FvsOK != (err = fdb_alloc_id(id)) ){
ImageDestroy(image);
ImageDestroy(mask);
MinutiaSetDestroy(new_minutias);
MinutiaSetDestroy(exist_minutias);
return err;
}
fdb_id_set(*id);
err = fdb_store_minutias(*id, new_minutias);
ImageDestroy(image);
ImageDestroy(mask);
MinutiaSetDestroy(new_minutias);
MinutiaSetDestroy(exist_minutias);
#if 0 /* 存储之后立即读出来验证 */
new_minutias = MinutiaSetCreate(MAXMINUTIA);
err = fdb_load_minutias(*id, new_minutias);
if (err == FvsOK) {
DP("\tLoad after store minutias ok.\n");
} else {
DP("\tLoad after store minutias fail. return %d.\n", err);
}
MinutiaSetDestroy(new_minutias);
#endif
return err;
}
/**
* 函数描述：
* 将指纹对象image进行验证，
* 通过则返回匹配指纹的ID号和指纹匹配度
* 参数：
* rgb24_buf : 24bit RGB图像缓冲区
* width ： 图像宽度
* height : 图像高度
* id : 与image匹配指纹的ID
* goodness : 指纹匹配值
* 返回值：
* 验证通过则返回FvsOK，否则放回FvsError_t错误码。
**/
FvsError_t
fp_auth(FvsByte_t *rgb24_buf, FvsInt_t width, FvsInt_t height,
FvsInt_t *id, FvsInt_t *goodness)
{
FvsError_t err;
FvsInt_t score;
/* 最佳匹配使用变量 */
FvsInt_t max_score, max_id;
FvsInt_t i;
FvsImage_t image, mask;
FvsMinutiaSet_t exist_minutias, new_minutias;
image = ImageCreate();
if (FvsOK != (err = ImageSetSize(image, width, height))) {
return err;
}
if (FvsOK != (err = rgb24_to_image(rgb24_buf, image))) {
return err;
}
new_minutias = MinutiaSetCreate(MAXMINUTIA);
exist_minutias = MinutiaSetCreate(MAXMINUTIA);
/* process source image */
mask = ImageCreate();
err = ImageSetSize(mask, ImageGetWidth(image), ImageGetHeight(image));
if (FvsOK != err) {
return err;
}
if (FvsOK != (err = img_to_minutias(image,mask,new_minutias))) {
return err;
}
/* 在算法没有对指纹进行分类之前，先使用遍历方法查找指纹特征向量 */
max_score = 0;
max_id = -1;
for (i = 0; i < MAX_FINGER_NO; i++) {
if (fdb_id_is_used(i)) {
continue;
}
DP("---> Load index : %d minutia set...\n", i);
if (FvsOK != (err = fdb_load_minutias(i, exist_minutias))) {
goto exit_auth;
}
DP("----> Matching index : %d ...\n", i);
err = MatchingCompareMinutiaSets(new_minutias, exist_minutias, &score);
if (FvsOK != err) {
return err;
}
DP("----> Match to index : %d score is : %d.\n", i, score);
#ifdef FVS_BEST_MATCH
/* 最佳匹配 */
if (score >= FP_THRESHOLD) {
if (score > max_score) {
max_score = score;
max_id = i;
}
}
#else
/* 首次匹配 */
if (score >= FP_THRESHOLD) {
*id = i;
*goodness = score;
goto exit_auth;
}
#endif
}
#ifdef FVS_BEST_MATCH
*id = max_id;
*goodness = max_score;
#endif
exit_auth:
ImageDestroy(image);
ImageDestroy(mask);
MinutiaSetDestroy(new_minutias);
MinutiaSetDestroy(exist_minutias);
return err;
}
