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Title:
IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/056834
Kind Code:
A1
Abstract:
The present invention provides an image processing device and an image processing method with which it is possible to eliminate haze (reduce the influence of haze) without incurring the loss of details of a high-luminance subject. According to an embodiment of the present invention: the dark channel value D of each pixel of an input image I is calculated, the input image I being represented by I=J·t+A·(1-t) in relation to an original image J, an airglow pixel value A, and transmittance t; a transmittance t having a monotonically decreasing value is correlated to pixels having a dark channel value D within the range 0 to 1; and a transmittance t having a monotonically increasing value is correlated to pixels having a dark channel value D within the range 1 to Dmax, whereby the original image J is generated as a corrected image.

Inventors:
FUJIKAWA, Tetsuya (1-324 Uetake-cho, Kita-ku, Saitama-sh, Saitama 24, 〒3319624, JP)
Application Number:
JP2016/075456
Publication Date:
April 06, 2017
Filing Date:
August 31, 2016
Export Citation:
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Assignee:
FUJIFILM CORPORATION (26-30, Nishiazabu 2-chome Minato-k, Tokyo 20, 〒1068620, JP)
International Classes:
G06T5/00; H04N1/409; H04N5/232
Domestic Patent References:
WO2014077126A12014-05-22
Foreign References:
JP2012221237A2012-11-12
US20110188775A12011-08-04
Attorney, Agent or Firm:
MATSUURA, Kenzo (Matsuura & Associates, P.O. Box 176 Shinjuku Sumitomo Bldg. 23F, 6-1, Nishi-shinjuku 2-chome, Shinjuku-k, Tokyo 23, 〒1630223, JP)
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