Method and apparatus for recognizing colored pattern Patent #: 3942154
ApplicationNo. 05/714687 filed on 08/16/1976
US Classes:358/523With memory for storage of conversion data
ExaminersPrimary: Britton, Howard W.
Assistant: Saffian, Mitchell
Attorney, Agent or Firm
International ClassH04N 1/60 (20060101)
Foreign Application Priority Data1975-08-20 JA
AbstractA method of color correction of the particular application to a color scanner having a color correction circuit, an analog-digital converter and a memory. Color separation signals obtained by scanning a color original are first compressed to the color ranges reproducible by printing inks by the color correction circuit and then converted at the analog-digital converter to digital signals, which are to be utilized as addressing signals. Memorized in the memory are only correction signals whose absolute values are relatively small so as to effect a considerable reduction of a memory capacity of the memory. The correction signals are read out by the digital signals and added thereto, whereby suitably-corrected signals for recording color separation images can be obtained.