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Kaur, Sumeet
- SD-CAPTCHA: An Alternate to Authentication System
Abstract Views :163 |
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Authors
Affiliations
1 Department of Computer Engineering, Yadavindra College of Engineering, IN
2 Yadavindra College of Engineering, IN
1 Department of Computer Engineering, Yadavindra College of Engineering, IN
2 Yadavindra College of Engineering, IN
Source
Research Cell: An International Journal of Engineering Sciences, Vol 12 (2014), Pagination: 8-12Abstract
Captcha stands for completely automated program to tell computer and human are apart. This captcha system is not a new concept it's being used by number of online service providers such as Google, Yahoo etc. but these captcha are highly sophisticated and sometime user gets annoyed to get rid of it. The prime task of Captcha is to differentiate computer from human and with the advent of technology and attacks the captchas are getting more secure and stronger day by day, with time usability or friendliness is reduced leaving user annoyed because machine passes the captcha test but user yet messing up with the captcha to pass. In this paper a standalone developed captcha design is proposed which is not only secured but also it is user friendly. A basic attack was made to check the resistance of SD-CAPTCHA which gives results lesser then 55%, because the robustness of a text CAPTCHA is typically determined by the strength of its segmentation-resistance mechanism.Keywords
CAPTCHA, Authentication, Usability, Security, Robustness, Anti-Segmentation, Anti-Recognition.Full Text
- A Comprehensive Review on Secure Image Steganography
Abstract Views :244 |
PDF Views:0
Authors
Affiliations
1 Yadavindra College of Engineering, Punjabi University, Patiala, IN
1 Yadavindra College of Engineering, Punjabi University, Patiala, IN
Source
Research Cell: An International Journal of Engineering Sciences, Vol 6 (2012), Pagination: 25-33Abstract
Steganography is an art and science of hiding secret information within the other information. Different carrier file formats can be used, but digital images are the most popular to hide secret information because the slight modification in the cover image is hard to distinguish by human visual system. In this paper, we are reviewing various steganographic techniques of hiding text in images using image steganography. This paper provides base to researchers who are new in the field of information hiding.Keywords
Cover Image, Embedding, Extraction, Steganography, Secret Message.Full Text
- A Comprehensive Review on Different Edge Detection Techniques
Abstract Views :221 |
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Authors
Uvika
1,
Sumeet Kaur
1
Affiliations
1 YCoE, Patiala, IN
1 YCoE, Patiala, IN
Source
Research Cell: An International Journal of Engineering Sciences, Vol 6 (2012), Pagination: 163-169Abstract
Edge detection is one of the most commonly used operations in image analysis and is also an essential pre-processing step in image segmentation. An edge is the boundary between an object and the background, and indicates the boundary between adjacent parts of image and overlapping objects. Here we are reviewing several techniques for edge detection like Sobel operator technique, Prewitt technique, Fuzzy Edge Detection technique, Canny technique, Roberts technique and Morphology based multi structure elements edge detection technique.Keywords
Boundary, Edge Detection Techniques, Image Segmentation, Objects.Full Text