发明名称 IMAGE PICKUP DEVICE
摘要 PROBLEM TO BE SOLVED: To reduce errors between a proper exposure level and an exposure level of a photographed image. SOLUTION: An exposure control value arithmetic section 201 calculates proper exposure level, based on luminance of the object detected by a photometry section 3, and the opening amount of an aperture 12 and the exposure time of a CCD 10 are controlled, based on the proper exposure level to conduct photographing. Image data outputted from the CCD 10 are stored in an image memory 18, and an exposure level arithmetic section 202 calculates the exposure level of a photographed image using the image data, and a correction gain arithmetic section 203 calculates the gain for correcting the exposure level of the photographed image to a proper exposure level. Then a level correction section 19 amplifies the image data by a correction gain for correcting the level. Error with respect to proper exposure level is reduced by correcting the exposure level of the photographed image through image processing.
申请公布号 JP2000069356(A) 申请公布日期 2000.03.03
申请号 JP19980235568 申请日期 1998.08.21
申请人 MINOLTA CO LTD 发明人 NOBUYUKI NORIYUKI;ROGI YUKIHIRO
分类号 H04N5/235;H04N5/335;H04N5/353;H04N5/372;H04N5/378;(IPC1-7):H04N5/235 主分类号 H04N5/235
代理机构 代理人
主权项
地址