3 citations · 7 across the 7 of their papers we have counts for
7 papers
Private key and password protection by steganographic image encryption
Debesh Choudhury, Sujoy Chakraborty
We propose a technique to protect and preserve a private key or a passcode in an encrypted two-dimensional graphical image. The plaintext private key or the passcode is converted i…
Fourier domain asymmetric cryptosystem for privacy protected multimodal biometric security
Debesh Choudhury
We propose a Fourier domain asymmetric cryptosystem for multimodal biometric security. One modality of biometrics (such as face) is used as the plaintext, which is encrypted by ano…
An Area Efficient 2D Fourier Transform Architecture for FPGA Implementation
Atin Mukherjee, Debesh Choudhury
Two-dimensional Fourier transform plays a significant role in a variety of image processing problems, such as medical image processing, digital holography, correlation pattern reco…
Teaching the concept of convolution and correlation using Fourier transform
Debesh Choudhury
Convolution operation is indispensable in studying analog optical and digital signal processing. Equally important is the correlation operation. The time domain community often tea…
A Novel Architecture of Area Efficient FFT Algorithm for FPGA Implementation
Atin Mukherjee, Amitabha Sinha, Debesh Choudhury
Fast Fourier transform (FFT) of large number of samples requires huge hardware resources of field programmable gate arrays (FPGA), which needs more area and power. In this paper, w…
Twin image elimination in digital holography by combination of Fourier transformations
Debesh Choudhury, Gautam Lohar
We present a new technique for removing twin image in in-line digital Fourier holography using a combination of Fourier transformations. Instead of recording only a Fourier transfo…