Image processing apparatus, image processing method and computer-readable medium
AssigneeFuji Xerox Co., Ltd.
InventorAtsushi Itoh
Life of this patent
Estimating the term…
Abstract
An image processing apparatus includes an analyzing unit, a determining unit and a color conversion unit. The analyzing unit analyzes colors being used in an image. The determining unit determines, based on an analysis result provided by the analyzing unit, as to whether or not the colors being used in the image are converted into one or more limited colors. When the determining unit determines that the colors being used in the image are converted into the one or more limited colors, the color conversion unit converts the colors being used in the image into the one or more limited colors.
Claims14
An image processing apparatus comprising:
- an analyzing unit that analyzes colors being used in an image;
- a determining unit that determines, based on an analysis result provided by the analyzing unit, as to whether or not the colors being used in the image are to be converted into one or more limited colors;
- and
- a color conversion unit, wherein when the determining unit determines that the colors being used in the image are to be converted into the one or more limited colors, the color conversion unit converts the colors being used in the image into the one or more limited colors, wherein
- the analyzing unit extracts one or more representative colors of the colors being used in the image,
- the determining unit determines as to whether or not the colors being used in the image are to be converted into the one or more limited colors with the extracted one or more representative colors being used as the one or more limited colors,
- the color conversion unit converts the color being used in the image into the one or more representative colors,
- the determining unit calculates a sum of differences between the colors of respective pixels of the image and the one or more representative colors into which the colors are to be converted, and
- if the sum is within a predetermined range, the determining unit determines that the colors of the corresponding pixels of the image are to be converted to the one or more representative colors.
A computer implemented image processing method for converting the colors of pixels in an image, the method comprising the computer implemented steps of:
- analyzing colors being used in an image;
- determining, based on the analysis result, as to whether or not the colors being used in the image are to be converted into one or more limited colors;
- and
- when it is determined that the colors being used in the image are to be converted into the one or more limited colors, converting the colors being used in the image into the one or more limited colors, wherein
- the analyzing comprises extracting one or more representative colors of the colors being used in the image,
- the determining determines as to whether or not the colors being used in the image are to be converted into the one or more limited colors with the extracted one or more representative colors being used as the one or more limited colors,
- the converting converts the color being used in the image into the one or more representative colors,
- the determining comprises calculating a sum of differences between the colors of respective pixels of the image and the one or more representative colors into which the colors are to be converted, and
- if the sum is within a predetermined range, it is determined that the colors of the corresponding pixels of the image are to be converted to the one or more representative colors.
A non-transitory computer-readable medium storing a program that causes a computer to execute image processing, the image processing comprising:
- analyzing colors being used in an image;
- determining, based on the analysis result, as to whether or not the colors being used in the image are to be converted into one or more limited colors;
- and
- when it is determined that the colors being used in the image are to be converted into the one or more limited colors, converting the colors being used in the image into the one or more limited colors, wherein
- the analyzing comprises extracting one or more representative colors of the colors being used in the image,
- the determining determines as to whether or not the colors being used in the image are to be converted into the one or more limited colors with the extracted one or more representative colors being used as the one or more limited colors,
- the converting converts the color being used in the image into the one or more representative colors,
- the determining comprises calculating a sum of differences between the colors of respective pixels of the image and the one or more representative colors into which the colors are to be converted, and
- if the sum is within a predetermined range, it is determined that the colors of the corresponding pixels of the image are to be converted to the one or more representative colors.
Dependencies are inferred from the claim text.