Digital Signal Processing

2308 Submissions

[2] viXra:2308.0149 [pdf] submitted on 2023-08-23 00:30:59

Improvement of Imperceptibility Evaluation Method and Security of Non-Blind Digital Image Watermarking Technique

Authors: Jon Tae Bom, Kim Kyong Jin, Ri Hyo Il, HyonChol Kim, Jang Un Ju
Comments: 6 Pages.

This paper presents the new digital image watermarking technique that has high imperceptibility and robustness against various geometric image attacks such as rotation attack and cropping attack using discrete wavelet transform (DWT) and singular value decomposition (SVD).In this paper, watermark logo is scrambled by 3D Arnold’s cat mapping and Chebyshev mapping, then security of watermark logo is realized.And control parameters of chaos mapping are encrypted bythe proposed quantum resistant encryption technique.Also in this paper, the suitable color image similarity evaluation method and the suitable embedding scaling factor using the relative vision characteristic of human are defined,computed and used in evaluation of imperceptibility.
Category: Digital Signal Processing

[1] viXra:2308.0104 [pdf] submitted on 2023-08-15 20:09:41

Establishment of a Security System Based on Arduino

Authors: GyongBong Ju, KyuSol Han, SongIl An, SongIl Han
Comments: 19 Pages.

Today, the security problem is emerging as a crucial problem for people, and research into solving this problem is now on its way worldwide. Everyone is aware of the urgency and seriousness of the security problem, and at this time, this problem has a giant impact on the overall social life. As science and technology develop, researches for solving security problems are advancing to a new stage, and their reliability is increasing day by day.In this study, a powerful quadruple security system was designed and realized by combining Keypad, RFID, Fingerprint, and Bluetooth (HC06) modules to thoroughly secure the security of medicines, jewelry, documents, and other valuables and doors.This system is based on the Arduino Mega 2560 microcontroller and is an intelligent system with a display function, voice function, SMS transmission function by GSM module, and alarm function. The system is an excellent system that can thoroughly guarantee the safety of security with low cost and low power consumption.
Category: Digital Signal Processing