Title:
画像処理装置および画像処理方法、画像処理システム、プログラム、並びに、記録媒体
Document Type and Number:
Japanese Patent JP5182555
Kind Code:
B2
Abstract:
The present invention relates to an image processing apparatus, an image processing method, an image processing system, a program, and a recording medium that are capable of obtaining a wide dynamic range image in which the luminance is compressed. Assignment of the number of luminance gradation steps of an output level signal with respect to the level of a luminance signal to be input is different among the main area, second luminance area, and other ranges. For example, the number of all gradation steps is divided and assigned to a luminance range of the main area and a luminance range of the second luminance area, but is not assigned to the other ranges. Also, the number of steps that is smaller than that of the luminance range of the main area and the luminance range of the second luminance area is assigned to a luminance range between the main area and the second luminance area. Furthermore, an area of the boundary between the luminance range of the main area and the luminance range of the second luminance area is set, and a smaller number of steps can be assigned to the luminance ranges of the main area and second luminance area, and more steps can be assigned to the area therebetween. The present invention can be applied to the image processing apparatus.
Inventors:
Tanichi Ando
Application Number:
JP2007508177A
Publication Date:
April 17, 2013
Filing Date:
March 15, 2006
Export Citation:
Assignee:
OMRON Corporation
International Classes:
H04N5/20; G06T5/00; H04N1/407
Domestic Patent References:
| JP2004221644A | 2004-08-05 | |||
| JP2002132243A | 2002-05-09 | |||
| JP2002077619A | 2002-03-15 | |||
| JPH09224174A | 1997-08-26 | |||
| JP2002217733A | 2002-08-02 | |||
| JP2001245214A | 2001-09-07 | |||
| JP2004221644A | 2004-08-05 | |||
| JP2002132243A | 2002-05-09 |
Attorney, Agent or Firm:
Yoshio Inamoto