A novel design of N-bit approximate comparator for image processing applications
Abstract
Purpose
This paper aims to implement a novel design of approximate comparator which can be suitable for image processing applications.
Design/methodology/approach
Here, the N-bit approximate comparator is implemented by taking reference of N as 2-, 4- and 8-bit. The design analyses the fractional change in error to bit in several bit formats. The final implementation of approximate comparator design application compares the structural similarity index, colour test and extraction of an image to the results.
Findings
The novel approximate comparator was designed using 2-, 4- and 8-bit to explore N-bit comparator expressions. The implementation, computations, evaluation of errors, applications and the design constraints were executed using Python and Synopsys, respectively. The computations, evaluation of errors, applications and the design constraints were executed using Python and Synopsys, respectively.
Originality/value
This paper presents the N-bit accurate and approximate comparator which is novel over the existing design of comparators.
Keywords
Acknowledgements
The authors are willing to express gratitude toward all staff of Digital Electronics Lab, Department of Electronics and Communication Engineering, NIT Meghalaya, for providing the necessary resources for the research. The authors also wish to thank the Indian Government for providing financial support under Device Development Program (DDP) (Grant No. DST/TDT/DDP-27/2018).
Citation
Kattekola, N. and Majumdar, S. (2022), "A novel design of N-bit approximate comparator for image processing applications", Circuit World, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/CW-09-2020-0219
Publisher
:Emerald Publishing Limited
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