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how i create a 7 images database and compare with a input image and also save it in a.mat file

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% BUILDING FINGERPRINT MINUTIAE DATABASE
% Usage: build_db(ICount, JCount);
% Argument: ICount - Number of FingerPrints
% JCount - Number of Images Per FingerPrint
  3 Comments
Image Analyst
Image Analyst on 5 May 2020
Not sure what all that is, but to see if two images match completely, you can use isequal(image1, image2).

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Accepted Answer

Mrutyunjaya Hiremath
Mrutyunjaya Hiremath on 4 May 2020
% ICount - Number of FingerPrints
% JCount - Number of Images Per FingerPrintICount=7;
ICount = 7;
JCount = 7;
p=0;
for i=1:ICount
for j=1:JCount
filename1=['10' num2str(i) '_' num2str(j) '.jpg'];
img = imread(filename1); % Example: image file name 101_1.jpg, 101_2.jpg .... 102_1.jpg ...
p=p+1;
if ndims(img) == 3;
img = rgb2gray(img);
end % colour image
disp(['extracting features from ' filename1 ' ...']);
ff{p} = extractFeatures(img); %User defined function, return single row Minutiae features
end
end
save('db.mat','ff');% save Minutiae to Database
  10 Comments
Image Analyst
Image Analyst on 5 May 2020
Use fullfile() to create the name using the other folder it's in:
folder = 'c:/users/indriani/document/whatever';
fullFileName = fullfile(folder, 'db1.mat')
s = load(fullFileName)

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More Answers (1)

Mrutyunjaya Hiremath
Mrutyunjaya Hiremath on 6 May 2020
Edited: Mrutyunjaya Hiremath on 6 May 2020
Hello Indrani,
the code you are using has sepecific format for finger print file reading. you are using dataset DB1 from 'FVC2002'. This contains file name as 101_1.tif, 101_2.tif, 101_3.tif, ..... 101_8.tif, 102_1.tif, ..... 110_7.tif, 110_8.tif. for that reson below format is used.
second=['10' num2str(fix((i-1)/8)+1) '_' num2str(mod(i-1,8)+1)];
if you are using you own dataset with diffent file syntax, then this wont work.
I have changed made some changes in 'main_single_new.m' and 'build_db1.m'.
used matlab command uigetfile in main_single_new and uigetdir in build_db1().
Place those two file in you folder 'Simple_FingerPrint_Matching' and run 'main_single_new.m'
And one more in build_db1.m file formats I used is '.tif'.
  7 Comments
Mrutyunjaya Hiremath
Mrutyunjaya Hiremath on 20 May 2020
There are 3 missing points here.
  1. Visual Cryptography - Encrypted data. If you want to match, Decrypt it before Matching.
  2. Visual Cryptography - usually have multiple share images.
  3. The shared VCSSsmple images are double in width (NOT properly encrypted).
Refer It, Simple animated Image : https://en.wikipedia.org/wiki/Visual_cryptography

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