Title:
【発明の名称】映像信号処理装置
Document Type and Number:
Japanese Patent JP3096619
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To effectively perform aperture processing for luminance data. SOLUTION: Luminance data Y1 is generated from picture data Y0 by a luminance data generation circuit 15 consisting of a digital low-pass filter, and this luminance data Y1 is non-linearly converted by a gamma correction circuit 16 to generate luminance data Y2. Aperture data A is generated by an aperture data generation circuit 17 consisting of a digital band pass filter, and this aperture data A is added to luminance data y2 by an aperture addition circuit 18. Thus, luminance data Y3 where only the luminance component is subjected to nonlinear conversion processing is obtained.
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Inventors:
Toshiro Nakasu
Application Number:
JP20460895A
Publication Date:
October 10, 2000
Filing Date:
August 10, 1995
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H04N5/208; (IPC1-7): H04N5/208
Domestic Patent References:
| JP4313964A | ||||
| JP432372A | ||||
| JP63209373A | ||||
| JP7131679A |
Attorney, Agent or Firm:
Masamasa Shibano