| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To eliminate irregularity of white balance and irregularity of luminance in an imaged image, in a document presentation device. <P>SOLUTION: In a structure used for imaging a document 106 mounted on a document mounting base 104 of a document presentation device 101 by an imaging device 102 and for projecting the image thereof on a projection screen 123, irregularity of brightness on the document mounting base 104 and irregularity of color of light are previously detected, and a light emission amount distribution and RGB balance of illumination from this lighting system 108 are adjusted based on the detection result thereof. Thus, irregularity of brightness and irregularity of color are prevented from being generated in the imaged image by influence of light from the lighting system 108 and light from a luminaire 124. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
