Patent ID: 6710321
Filing Date: 2004-03-23
Classification: H04N

Abstract:
A display image quality measuring system comprising:image pickup means for conducting photographing which includes a two dimensional solid state sensor and an imaging optical system, with a photographing condition in which a gradation characteristic is not saturated, a gradation characteristic under the photographing condition, and a dark level being known; control means for instructing a display to display an adjustment pattern and a measurement pattern; and analyzing means for analyzing photographing data obtained by said image pickup means, wherein said display is instructed to display the adjustment pattern, the adjustment pattern thus displayed is photographed by said image pickup means, photographing data of the adjustment pattern is supplied to said analyzing means, and a measurement photographing condition is determined by said analyzing means using the photographing data, the photographing condition, the gradation characteristic, and the dark level, and wherein said display is instructed to display the measurement pattern, the measurement pattern thus displayed is photographed by said image pickup means under said determined measurement photographing condition, photographing data of the measurement pattern is supplied to said analyzing means, and the photographing data of the measurement pattern is analyzed by said analyzing means.