How to create database of 320 images in matlab? for signature verification system how to extract surf features and how to store them?

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Regina N 2019-1-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/438588-how-to-create-database-of-320-images-in-matlab-for-signature-verification-system-how-to-extract-su

评论： KSSV 2019-1-7

采纳的回答： KSSV

在 MATLAB Online 中打开

MathWorks

I = imread('C:\Users\LENOVO\Desktop\MATLAB\Database2\Preprocessed\forged\1\1.1.png');
 
 %Find and extract features.
 points = detectSURFFeatures(I);
 [~, valid_points] = extractFeatures(I, points);
  
  %Display and plot ten strongest SURF features.
  figure; imshow(I); hold on;
  plot(valid_points.selectStrongest(100),'showOrientation',true);

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采纳的回答

KSSV 2019-1-7

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/438588-how-to-create-database-of-320-images-in-matlab-for-signature-verification-system-how-to-extract-su#answer_355313

在 MATLAB Online 中打开

files = dir('*.png')
N = lenght(Files) ;
for i = 1:N
    I = imread(files(i).name)
    %Find and extract features.
    %  points = detectSURFFeatures(I);
    %  [~, valid_points] = extractFeatures(I, points);
    %Display and plot ten strongest SURF features.
    %   figure; imshow(I); hold on;
    %   plot(valid_points.selectStrongest(100),'showOrientation',true);
   
end

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Regina N 2019-1-7

Is this code hepl to read the image from database....i have run this code...and it only read the image....bt i want to create the database...plz sir suggest me something related to that