Photographic Image Enhancement and Extraction by Photoscattering Method (3)

Influence of the Angle of Incidence

Abstract

The line width and its O. D. distribution of an extracted line picture were studied on the effects of various angle of incidence in photographic enhancemen and density extraction, employment of light scattering as a picture processing. The maximum O. D. value of extracted line picture was insensitive about angles of incidence of beamliked light of incidence. It is clear from the rusult that the processing lightsource is no need of parallel rays. The emphatic power or the value of amplification of this process, namely, the product of extracted line width of the line by maximum O. D. value was strongly depended on this maximum value rather than line width.