逆光・過順光度合の導出にファジィ理論を用いた露光制御方式の検討 : コンシューマエレクトロニクス,放送方式

概要

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stable automatic iris control was desired to compensate for various backlighting and excessive frontlighting for photographic images. In this paper, we present iris control based on distribution of luminance for multiple regions of an image. The degree of backlighting v_b and excessive frontlighting v_f of Various images can be determined by using fuzzy inference rules whose inputs are the interval mean from luminances of 80 regions. A discrimination between two kinds of images is Conducted based on the distribution of mean luminances for 4 regions into which the total image has been divided. Subsequently the compensation level is determined by alternating v_b and v_f based on results from the discrimination between the two kinds of images.
社団法人映像情報メディア学会の論文
1992-05-29