Title:
IMAGE PROCESSING APPARATUS
Document Type and Number:
Japanese Patent JP2019110442
Kind Code:
A
Abstract:
To provide an image processing apparatus that can detect a false color with a simple configuration, and can modify a color to reduce the false color.SOLUTION: A peripheral blown-out highlight pixel number counting unit 11 counts the number of blown-out highlight pixels in a block including a target pixel and peripheral pixels in image data. A G threshold determination unit 12 determines a G threshold such that the G threshold becomes a larger value as the number of blown-out highlight pixels increases. A (B-G) threshold determination unit 13 determines a (B-G) threshold such that the (B-G) threshold becomes a smaller value as the number of blown-out highlight pixels increases. A G threshold determination unit 14 determines whether a G signal is smaller than the G threshold. A (B-G) threshold determination unit 15 determines whether a (B-G) value is larger than the (B-G) threshold. When the G signal is determined to be smaller than the G threshold, and the (B-G) value is determined to be larger than the (B-G) threshold, a modification necessity determination unit 16 determines that the color of the target pixel needs to be modified. When it is determined that the color of the target pixel needs to be modified, a color modification unit modifies at least the G signal and a B signal.SELECTED DRAWING: Figure 1
Inventors:
YAMADA KUNIO
Application Number:
JP2017242373A
Publication Date:
July 04, 2019
Filing Date:
December 19, 2017
Export Citation:
Assignee:
JVC KENWOOD CORP
International Classes:
H04N9/04; G06T1/00; H04N5/243; H04N9/64
Attorney, Agent or Firm:
Hidekazu Miyoshi
Shunichi Takahashi
Shunichi Takahashi