Title:
【発明の名称】色画像処理装置
Document Type and Number:
Japanese Patent JP2577145
Kind Code:
B2
Abstract:
PURPOSE:To easily set up the upper limit values and lower limit values of some colors out of three color elements R, G, B by the small quantity of data even when there are many objects to be identified or respective colors are similar. CONSTITUTION:Processing resisting a change in a lighting condition can be attained by converting data to be processed from R, G and B into I=R+G+B, r=R/I, and g=G/I and using the rate of colors expressed by (C) and (g) normalized by brightness information mainly for processing. While observing the (r) and (g) an object to be processed, a two-dimensional histogram relating to the (r), (g) is formed, a feature color is extracted in accordance with the distributed state of the histogram, an upper limit value and a lower limit value corresponding to the color are automatically set up, and relation between the number of picture elements counted based upon the upper limit value and lower limit value corresponding to the color and the object to be identified is automatically constructed by an upper limit value/lower limit value setting part. Thus plural multi-input/one-utput signal processing parts are mutually connected like a network and the network structure has two-layer structure.
Inventors:
ANDO HIROYUKI
TAKAHASHI MAKOTO
HASHIMUKAI HIROAKI
TAKAHASHI MAKOTO
HASHIMUKAI HIROAKI
Application Number:
JP24013491A
Publication Date:
January 29, 1997
Filing Date:
June 17, 1991
Export Citation:
Assignee:
YAMATAKE HONEYWELL CO LTD
International Classes:
G06F15/18; G06N3/00; G06N99/00; G06T1/00; G06T5/00; G06T7/00; (IPC1-7): G06T7/00; G06F15/18; G06T1/00; G06T5/00
Domestic Patent References:
| JP63276676A | ||||
| JP61272875A | ||||
| JP272491A | ||||
| JP3265981A |
Attorney, Agent or Firm:
Hiroaki Tazawa (2 outside)