NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Analysis and Comparison of Various Image Downsampling and Unsampling Methods
Published
Author(s)
Abdou S. Youssef
Abstract
Downsampling and upsampling are widely used in image display, and jointly used in compression and progressive transmission. In this paper we examine new down/upsampling methods using both frequency response analysis and experimental evaluation. Our findings show that binomial filters and some biorthogonal wavelet filters are among the best filters for down/upsampling, and significantly outperform the standard down/upsampling methods.
Citation
- 6155
Report Number
6155
Pub Type
NIST Pubs
Keywords
downsampling, filtering, frequency response, progressive transmission, upsampling
Citation
Youssef, A.
(1998),
Analysis and Comparison of Various Image Downsampling and Unsampling Methods, - 6155, National Institute of Standards and Technology, Gaithersburg, MD
(Accessed November 3, 2025)