Patent Number: 6,252,983

Title: Histogram generator

Abstract: A histogram generator creates a histogram to detect the characteristics of video signals. The histogram generator allows for a reduction in problems of instability caused by noise that may exist in other histogram generators. A width is allocated to thresholds used in creating the histogram, and signal values are counted after weighting those falling near a threshold.

Inventors: Takeshima; Masahiro (Takatsuki, JP), Kageyama; Atsuhisa (Ibaraki, JP), Kawabata; Minoru (Takatsuki, JP), Sugimoto; Hiroko (Hirakata, JP)

Assignee: Matsushita Electric Industrial Co., Ltd.

International Classification: G06T 5/40 (20060101); H04N 17/00 (20060101); H04N 5/20 (20060101); G06K 009/00 ()

Expiration Date: 06/26/2018