Image processing apparatus, image processing method, and program and storage medium therefor
First Claim
Patent Images
1. An image processing apparatus comprising:
- histogram calculation means for calculating a histogram that is consonant with an input image;
binary threshold value calculation means for calculating a binary threshold value, based on said histogram, with which a predetermined area in said input image is blurred;
binarization means for binarizing said input image using said binary threshold value; and
calculation means for calculating the color of said predetermined area of said input image based on the results obtained by said binarization means.
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Abstract
An image processing apparatus comprises: a histogram calculation unit for calculating a histogram that is consonant with an input image; a binary threshold value calculation unit for calculating a binary threshold value, based on the histogram, with which a predetermined area in the input image is blurred; a binarizing unit for binarizing the input image using the binary threshold value; and a calculation unit for calculating the color of the predetermined area of the input image based on the results obtained by the binarizing unit.
21 Citations
12 Claims
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1. An image processing apparatus comprising:
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histogram calculation means for calculating a histogram that is consonant with an input image;
binary threshold value calculation means for calculating a binary threshold value, based on said histogram, with which a predetermined area in said input image is blurred;
binarization means for binarizing said input image using said binary threshold value; and
calculation means for calculating the color of said predetermined area of said input image based on the results obtained by said binarization means. - View Dependent Claims (2, 3, 4, 5)
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6. An image processing method comprising:
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a histogram calculation step of calculating a histogram that is consonant with an input image;
a binary threshold value calculation step of calculating a binary threshold value, based on said histogram, with which a predetermined area in said input image is blurred;
a binarization step of binarizing said input image using said binary threshold value; and
a calculation step of calculating the color of said predetermined area of said input image based on the results obtained by said binarization means. - View Dependent Claims (7, 8, 9, 10)
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11. A computer-readable storage medium on which stored is a program comprising:
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a code for calculating a histogram that is consonant with an input image;
a code for calculating a binary threshold value, based on said histogram, with which a predetermined area in said input image is blurred;
a code for binarizing said input image using said binary threshold value; and
a code for calculating the color of said predetermined area of said input image based on the results obtained by said binarization means.
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12. An image processing apparatus comprising:
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binarizing means for binarizing color image data;
detection means for detecting a symbol area in said color image data;
color reduction means for obtaining, from N colors that form a symbol in said symbol area, M colors that are equal to or smaller than N;
symbol cutting means for performing a symbol cutting process for said symbol area; and
color allocation means for allocating one of said M colors for each symbol cut unit that is obtained by said symbol cutting means.
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Specification