Patent ID: 6061462
Filing Date: 2000-05-09
Classification: G06T

Abstract:
An image rendering process, comprising:(a) obtaining an original image into an image channel; and(b) scrubbing said image channel, to enhance lines which will appear as transitions at borders of a subject in said line art representation;(c) scaling said image channel up in size, to render said lines more finely;(d) creating an alpha channel from said image channel, to denote key content appearing in said original image;(e) creating a monochrome channel from said image channel;(f) applying levels filtering to said monochrome channel, to increase contrast of low and mid-range information and thereby obtain further visual definition of said lines;(g) applying high-pass filtration to the monochrome channel, to filter out low frequency spatial information and thereby obtain further visual definition of said lines;(h) increasing contrast in said monochrome channel, to obtain further visual definition of said lines;(i) darkening said monochrome channel, to strengthen visual definition of said lines;(j) converting said monochrome channel to final size;(k) lining said monochrome channel, to produce consistent thin appearance of said lines; and(l) removing noise from said monochrome channel, thereby rendering said image channel into a rotoscope channel and producing a line art representation of said original image.