Abstract
Some problems associated with sub-band coding of images are investigated. The filtering operations needed for splitting an input into different frequency bands, as well as their reconstruction, require an extension beyond the length of the finite signal. If not properly made, the necessary signal extension can yield distortion of the reconstructed signal, and it may complicate the compression of high-pass frequency bands. Five different methods of signal extensions have been investigated for sub-band coding. It turns out that extending the signal so that continuity is maintained may be a sufficient remedy, as shown in an image coding example.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
