Zigzag line discrete cosine transform for blocking artifact removal

A new pre-processing approach for the removal of the blocking effect, associated with the standard 2D-DCT, is introduced in this paper. In this method, the processing of the image is started from the top corners by zigzagging rows and columns of an image into horizontal, vertical or diagonal streams...

Full description

Saved in:
Bibliographic Details
Main Authors: Belkasim, S., Derado, G.
Format: Conference Proceeding
Language:English
Subjects:
Bit rate
Compaction
Discrete cosine transforms
Discrete transforms
Image coding
Image processing
Pixel
PSNR
Quantization
Streaming media
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new pre-processing approach for the removal of the blocking effect, associated with the standard 2D-DCT, is introduced in this paper. In this method, the processing of the image is started from the top corners by zigzagging rows and columns of an image into horizontal, vertical or diagonal streams of pixels. These pixel streams are transformed into one-dimensional line arrays. The one-dimensional DCT transform is applied to each array. The experimental results reveal the effectiveness of this method in reducing the blocking effect associated with the standard DCT. The zigzag line method produces very good subjective as well as PSNR results
ISSN:1548-3746
1558-3899
DOI:10.1109/MWSCAS.2003.1562343