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Explanation of FDK kit finger print algorithm ?

sangili pandian
Intellectual 265 points


I've bought FDK developing kit and algorithms. In source code of Finger Print matching algorithm involved following steps,


1.void TA_Segement(unsigned short *pImg);

2.void TA_Graystretch(unsigned short *pImg);

3.void TA_gabor_filter(unsigned short *Img, short *enhance_image);

4.void TA_BinImage (unsigned short *srcPtr);

5.void TA_Thin_image(unsigned short *Img,unsigned short *Temp,unsigned short *T_mark);

6.void TA_Get_feature(CFEATURE* Feature,unsigned short *Img,unsigned short *minutia_mark);

7.short TA_GetFeature(unsigned short *pImg,unsigned short *pVbin,unsigned short *pTemp1,CFEATURE* Feature);

8.short TA_MatchFingers(CFEATURE mFeature1,CFEATURE mFeature2);

I know what happens on it and well known about flow . This algorithm only suits 128 x 128 picture input size , but i need 200 x 400  input image size. Here i can't finding minutiae of 200 x 400 size . What i have to change in the source code. May you help me to knowing the mathematical explanation of the algorithm.