fkp_ROI.zip_ROI_finger knuckle_finger print matlab_finger vein_k

function ROI=fkp_ROI(inimage) %clear all; %clc; %I=imread('C:\D\FKP Images\001_left index\09.jpg'); I=inimage; [x,y]=size(I); subplot(3,3,1); imshow(I); %disp(I); h = fspecial('gaussian'); %display(h); IS=imfilter(I,h); subplot(3,3,2); imshow(IS); IC=imcrop(IS,[10 100 384 145]); disp(size(IC)); subplot(3,3,3); imshow(IC); IE = edge(IC,'canny'); subplot(3,3,4); imshow(IE,[]); [rowIE,colIE]=size(IE); %convex direction coding heightofIE=rowIE; ymid=(heightofIE/2); for i=1:rowIE for j=1:colIE if (IE(i,j) == 0) ICD(i,j)=0; else if ((IE(i+1,j-1)==1) && (IE(i+1,j+1)==1)) ICD(i,j)=0; else if ((IE(i+1,j-1)==1 && i<=ymid) || (IE(i+1,j+1)==1 && i>ymid)) ICD(i,j)=1; else if ((IE(i+1,j+1)==1 && i<=ymid) || (IE(i+1,j-1)==1 && i>ymid)) ICD(i,j)=-1; end; end; end; end; end; end; subplot(3,3,5); imshow(ICD,[]); %determine Y co-ordinate [rowICD,colICD]=size(ICD); sum=0; for j=18:colICD-18 for i=1:rowICD for k=-17:17 sum=sum+ICD(i,j+k); end; end; temp(j-17)=sum; sum=0; end; j=18:colICD-18; subplot(3,3,6); plot(j,abs(temp)); [o,p]=min(abs(temp(100:300))); p1=p+17+99;%p1 is the y co-ordinate disp(p1); ROI=imcrop(IC,[(p1-107) (rowICD-5-110) 219 109]); subplot(3,3,7); imshow(ROI);