发明名称 |
IMAGE CORRECTING METHOD AND IMAGING APPARATUS |
摘要 |
<p>An image correcting method capable of performing highly accurate shading correction using a table having a small storage area without causing any deterioration of performance even when the shading characteristics vary dynamically. The image correcting method comprises a step for calculating the distance between the coordinates of a pixel constituting an image and a predetermined reference coordinates, a step for calculating a distance correction value by inputting the distance calculated at the distance calculating step to the variable of an N-order function (N is an integer of 1 or above), a step for calculating a correction coefficient corresponding to the distance correction value calculated at the distance correction value calculating step based on a table representing the correspondence between the distance correction value and the correction coefficient, and a step for correcting the signal of the pixel based on the correction coefficient calculated at the correction coefficient calculating step.</p> |
申请公布号 |
WO2005043891(A1) |
申请公布日期 |
2005.05.12 |
申请号 |
WO2003JP13972 |
申请日期 |
2003.10.31 |
申请人 |
MATOBA, NARIHIRO;MITSUBISHI DENKI KABUSHIKI KAISHA;FUJITA, TAKEO |
发明人 |
FUJITA, TAKEO;MATOBA, NARIHIRO |
分类号 |
H04N5/357;(IPC1-7):H04N5/232;H04N9/04 |
主分类号 |
H04N5/357 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|