Color image processing with adjustment of computed recording color to match original color

A color image processing apparatus comprising:

• means for determining plural average values in a color space represented by luminosity and hue, based on already digitized data in the vicinity of an object pixel and anticipated digitized values of the object pixel;
• means for determining respective differences between (1) the input image signal and (2) respective ones of said plural anticipated average values;
• digitization means for selecting the anticipated digitized value giving the smallest one of said respective differences as the digitized value of the object pixel;
• and
• conversion means for converting the digitized signal into a record or display signal.

A color image processing apparatus comprising:

• anticipated average value calculation means for calculating plural average values in a color space, based on plural data already digitized into one of plural colors, in the vicinity of an object pixel, and anticipated digitized values of said object pixel;
• digitization means for determining the closest color to the input image, among plural average values;
• and
• correction means for correcting the digitization error generated in said digitization.

A color image processing apparatus comprising:

• first input means for entering a color image in the form of color coordinate data consisting of of a plurality of color components;
• second input means for entering representation colors of N kinds to be used in the recording or display, in the form of the color coordinate data;
• and
• process means for converting the color coordinate data entered by said first input means into one of said representation color of N kinds,
• wherein said process means further comprises gamut limitation processing means.

A color image processing apparatus comprising:

• first input means for entering a color image in the form of color coordinate data consisting of of a plurality of color components;
• second input means for entering representation colors of N kinds to be used in the recording or display, in the form of the color coordinate data;
• process means for converting the color coordinate data entered by said first input means into one of said representation color of N kinds;
• and
• correction means for correcting the color image entered by said first input means, in accordance with a recording characteristic of recording means.