Title:
IMAGE DATA PROCESSING METHOD AND IMAGE DATA PROCESSOR
Document Type and Number:
Japanese Patent JP3443344
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent production of a false signal resulting from dispersion in the sensitivity of each component of a color filter.
SOLUTION: Multiplier circuits 23a-23c multiplies two of complementary color data C[Ye], C[Mg], C[Cy] to calculate products P[r], P[g], P[b], and substrate circuits 25a, 25b calculate a difference S[r] between the products P[r], P[g] and a difference, S[b] between the products P[g], P[b]. Absolute value circuits 26a, 26b, root extraction circuits 27a, 27b and signal addition circuit 28a, 28b produce roots R2[r], R2[b] of the differences S[r], S[b]. A color difference matrix circuit 29 synthesizes the roots R2[r], R2[b] to generate color difference data U, V.
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Inventors:
Toshiro Nakasu
Application Number:
JP36113098A
Publication Date:
September 02, 2003
Filing Date:
December 18, 1998
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H04N9/67; G06T1/00; H04N9/04; H04N9/07; H04N9/64; (IPC1-7): H04N9/64; H04N9/07; H04N9/67
Domestic Patent References:
| JP292161A | ||||
| JP5252521A | ||||
| JP918887A | ||||
| JP10336684A | ||||
| JP511663U |
Attorney, Agent or Firm:
Masamasa Shibano