A Technical Proposal of Outline Emphasis to Ascii-art Imaging

Abstract

This report presents a technical consideration for outline emphasis of ascii-arts imaging. Proposal method constitute from character substitution of image dithering and line drawing style mapping, and the image dithering is gray colors expression technique of grouped pixels, and the line drawing style mapping is introduced for outline emphasis of image. Experimental results revealed embedding capacity depends on the parameters of pattern matching, also, the ascii-arts quality of proposal technique surpassed the conventional dithering ascii-arts at several conditions, smoothly outlines, gradual surfaces, clear boundaries, and so on.