A Comparative Analysis Of Digital Filters For Image Decimation And Interpolation

Isaac Ajewole

doi:10.1117/12.966480

19 December 1985 A Comparative Analysis Of Digital Filters For Image Decimation And Interpolation

Isaac Ajewole

Proceedings Volume 0575, Applications of Digital Image Processing VIII; (1985) https://doi.org/10.1117/12.966480
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

It is sometimes necessary to increase or decrease the sampling rate of previously sampled images. Technically speaking, the process of increasing the sampling rate is called interpolation and the process of decreasing the :sampling rate is called decimation. In this paper we present both linear and higher-order polynomial interpolation techniques in terms of linear filtering operations (convolutions) and discuss the associated impulse responses. Several simple filters for decimation are also discussed. All these filters are compared vis-a-vis their suitability for decimation and interpolation particularly the degree to which the balance between sharpness and prevention of aliasing is maintained. Images which have been decimated or interpolated using these filters are shown.

Citation Download Citation

Isaac Ajewole "A Comparative Analysis Of Digital Filters For Image Decimation And Interpolation", Proc. SPIE 0575, Applications of Digital Image Processing VIII, (19 December 1985); https://doi.org/10.1117/12.966480

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available