Title :
New preprocessing technique for digital facsimile transmission
Author :
Ismail, M.G.B. ; Clarke, R.J.
Author_Institution :
Loughborough University of Technology, Department of Electronic Engineering, Loughborough, UK
Abstract :
A new preprocessing technique which removes unwanted notches and random noise generated by electronic scanners is presented. Using a 3 element by 3 element mask, the central picture element is altered from black to white, or vice versa, if the surrounding elements correspond to a predetermined pattern. A significant improvement in both subjective image quality and coding efficiency is observed.
Keywords :
facsimile; picture processing; coding efficiency; digital facsimile transmission; electronic scanners; image quality; notches; preprocessing technique; random noise;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800253
