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ISSN: 2321-9653
Estd : 2013
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Ijraset Journal For Research in Applied Science and Engineering Technology

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Signature Verification Using Python

Authors: K. Sujith, S. Ramreddy, G. Mahesh, Dr. Jayaprakasan, Yerraboina Sreenivasulu

DOI Link: https://doi.org/10.22214/ijraset.2023.48643

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Abstract

Each individual has a distinctive signature that is primarily used for personal identification and the confirmation of significant papers or legal transactions. Static (offline) and dynamic signature verification come in two flavours (online). After a signature has been made, it can be verified using a method known as static verification. For a lot of documents, off line signature verification is ineffective and slow. Online biometric personal verification, such as fingerprints, eye scans, etc., has increased in recent years as a way to get over the limitations of offline signature verification. Convolution neural network (CNN)-based offline signature verification is proposed in this study. We can extract more accurate representations of the image content using a neural network model called CNN. In order to improve categorization, CNN starts with the raw pixel data from the image, trains the model, and then automatically extracts the features. CNN\'s key advantage over its forerunners is that it automatically identifies significant features without human supervision and that it predicts images with the highest degree of accuracy of any algorithm.

Introduction

I. INTRODUCTION

Offline signatures are handwritten signatures that were scanned from paper documents. The automatic verification of signatures found on bank checks and other documents can be done with the help of off-line signature analysis, which can be done using a scanned image of the signature using a regular camera or scanner. Socially and legally, handwritten signatures are accepted in daily life. These are utilised as characteristics for each person's biometric data.

Biometric identification is the term used to describe the automatic identification of people based on their physiological and behavioural traits. The need for easier access controls to personal authentication systems is urgent, and it appears that biometrics might be the solution. Your body can be used to uniquely identify you rather than carrying around a lot of keys, access cards, or passwords.

II. LITERATURE REVIEW

There are several applications for identification and authentication that use handwritten signature recognition, which is a significant behavioural biometric. Online and offline are the two primary techniques for recognising signatures. Online signature recognition is a dynamic process that takes into account factors including writing speed, stylus direction changes, and the quantity of pen ups and downs used while creating the signature.

Offline signature recognition uses a static method that treats a signature like a picture and infers the author based on the properties of the signature. Off- line signature recognition currently uses template matching, which compares a test image to a number of specimen images to guess who signed the document.

Both memory usage and temporal complexity are high for this. This study suggests a Convolution Neural Network-based technique for offline signature recognition. With only a few training signature samples, the goal of this study is to achieve high-accuracy multi-class categorization. Using a variety of image processing techniques, images are reprocessed to separate the signature pixels from the background/noise pixels. The system is initially taught with 27 real signatures, each from a different ten authors. The identity of a test signature as belonging to one of the 10 writers is predicted using a convolution neural network. To show how well the suggested solution works, various publicly available datasets are used.

For off-line handwritten signature recognition, we have presented a convolution neural network design. We tested the model using two optimizers on three different datasets and assessed its performance. Because Adam training offered greater validation accuracy for all three types of signatures, it may be stated that the model's adaptability was increased. The suggested model could be used in the future to verify signatures along with retrained models like Inception-V3, which would accurately classify whether a signature is real or fake based on a small number of training samples.

III. METHODOLOGY

A. Dataset

A collection of picture data including handwritten signatures from several authors would be required by the signature verification system. Each person's set of five photographs and sample were gathered for four different pupils, resulting in a database with 20 different images for each individual.

This section outlines the anticipated process for system development. The following points are described:

  1. Signature Obtaining
  2. Signatory pre-processing
  3. Feature Extrapolation
  4. Signatures are processed.
  5. Verification of signatures

B. Signature Acquisition

C. Signature Preprocessing



Work and its underlying premise current work Different strategies for feature extraction and classification are used by existing algorithms.

For present methodologies, the time complexity is relatively high because we previously used machine learning algorithms where feature extraction and classification were done separately. Existing methods are inaccurate and have a high false acceptance rate. Distance classifiers, SVM, KNN, and other existing classifiers proposed project

The preliminary preprocessing of an offline rough handwritten signature to prepare it for future processing is the initial contribution of this research. The creation of a brand-new joint feature learning framework, which can be used to merge intermediate features calculated in a deep network, is the second contribution. In most cases, deep learning architectures generate a number of intermediate features from input data and only use the top-level features for representation and classification. Here, for feature learning and classification, we employed a hybrid framework by auto-encoders and soft max layer.

IV. RESULT

The presented results depend on whether they match or not. The proposed method is superior to state-of-the-art methods, according to both subjective and objective examination. To provide a thorough analysis, the confusion matrix is plotted according to the results. Easy analysis is possible because to the GUI.

1) To execute the project, double-click the "run.bat" file to see the output shown below:

Conclusion

In this project, we provide a straightforward method for offline signature verification, in which the signature is written on paper and converted to an image format or taken using a tablet or mobile device. Preprocessing on input, one of the main goals of Matlab toolboxes, is successfully accomplished to obtain the final, updated input. The second is based on deep learning and uses softmaxlayer and auto encoders. The application\'s GUI is set up for simple understanding. Through the use of a convolutional neural network (CNN), offline signature verification has been carried out in this study. We can extract more accurate representations of the image content using a neural network model called CNN. For improved categorization, CNN uses the image\'s raw pixel data to train a model before automatically extracting features. The biggest benefit In comparison to its forerunners, it automatically recognises the crucial details without human supervision and has the best level of image prediction accuracy. The GUI application is used for the uploading, training, and testing of the code using previously submitted data. Offline signature verification is made simple, quick, and clear using this method.

References

[1] Identifying Handwritten Signatures Using Convolutional Neural Networks [2] Dynamic Signature Verification Method Based on a Single Real Signature [3] Three. Y. Akbari, M. J. Jalili, J. Sadri, [4] K. Nouri, I. Siddiqi, and C. Djeddi. a cutting-edge database for the automated processing of Persian bank checks. 253- 265 in Pattern Recognition 74 (2018). [5] W. Bouamra, C. Djeddi, B. Nini, M. Diaz, and I. Siddiqi. 2018. Toward the Design of an Offline Signature Verifies Based on a Limited Number of Real Samples for Training. 182-195 in Expert Systems with Applications 107 (2018). [6] Dynamic Signature Verification Method Based on a Single Real Signature [7] Offline signature verification based on neural network classification and geometric feature extraction [8] An analysis of handwritten signature technology from a perspective

Copyright

Copyright © 2023 K. Sujith, S. Ramreddy, G. Mahesh, Dr. Jayaprakasan, Yerraboina Sreenivasulu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

ijraset48643

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Authors : G.MAHESH

Paper Id : IJRASET48643

Publish Date : 2023-01-13

ISSN : 2321-9653

Publisher Name : IJRASET

DOI Link : Click Here

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International Journal for Research in Applied Science and Engineering Technology (IJRASET) is an international peer reviewed, online journal published for the enhancement of research in various disciplines of Applied Science & Engineering Technologies.

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