Search International and National Patent Collections

1. (WO2017169286) WHITE BALANCE ADJUSTMENT DEVICE, OPERATION METHOD THEREFOR, AND OPERATION PROGRAM

Pub. No.:    WO/2017/169286    International Application No.:    PCT/JP2017/006233
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Tue Feb 21 00:59:59 CET 2017
IPC: H04N 9/04
H04N 9/73
Applicants: FUJIFILM CORPORATION
富士フイルム株式会社
Inventors: NISHIO, Yuya
西尾 祐也
Title: WHITE BALANCE ADJUSTMENT DEVICE, OPERATION METHOD THEREFOR, AND OPERATION PROGRAM
Abstract:
Provided are a white balance adjustment device, an operation method therefor, and an operation program with which the hue of a main subject becomes appropriate at the time of capturing an image with a plurality of flashes. A non-light-emission image acquisition unit (53a) acquires a non-light-emission image (60) wherein a plurality of flash devices (12, 13) are in a non-light-emission state. A light-emission image acquisition unit (53b) acquires pre-light-emission images (61, 62) wherein the plurality of flash devices (12, 13) are respectively in an individual light-emission state. A flash irradiation area specification unit (54) specifies flash irradiation areas (67, 68) on the basis of differences between signal values of a plurality of divided areas (65) in the non-light-emission image (60) and each of the light-emission images (61, 62). A priority flash device selection unit (55) selects a priority flash device as a target for WB (white balance) adjustment. A WB adjustment unit (56) performs WB adjustment on the basis of a signal value of the irradiation area of the selected priority flash device.