Claims
- 1. An image processing apparatus comprising:
- input means for inputting image data representing a color image;
- a processor for performing color processing on the input image data;
- extraction means for extracting a first characteristic value relating to a white level of the color image and a second characteristic value relating to a feature different from the white level of the color image, on the basis of the input image data;
- determination means for determining respective weights of the first and second characteristic values, on the basis of predetermined functions of the first and second characteristic values; and
- control means for controlling the color processing of the color image, on the basis of the weights and the first and second characteristic values.
- 2. An apparatus according to claim 1, wherein the color image is an entire original image.
- 3. An apparatus according to claim 1, wherein the first and second characteristic values relate to brightness processing.
- 4. An apparatus according to claim 1, wherein the first and second characteristic values relate to color balance processing.
- 5. An apparatus according to claim 1, wherein the weights of the respective first and second characteristic values are determined such that if one of the weights becomes larger the other becomes smaller.
- 6. An apparatus according to claim 1, further comprising storage means for storing tables respectively corresponding to the different color processing, and wherein said control means selects the table for the color image, on the basis of the weights and the first and second characteristic values, and said processor performs the color processing by using the selected table.
- 7. An apparatus according to claim 1, wherein said extraction means extracts white data and average data from the color image data, as the first and second characteristic values.
- 8. An apparatus according to claim 1, wherein the predetermined functions are membership functions which are determined based on respective components of the first and second characteristic values.
- 9. An image processing method comprising:
- an input step of inputting image data representing a color image;
- a processing step of performing color processing on the input image data;
- an extraction step of extracting a first characteristic value relating to a white level of the color image and a second characteristic value relating to a feature different from the white level of the color image, on the basis of the input image data;
- a determination step of determining respective weights of the first and second characteristic values, on the basis of predetermined functions of the first and second characteristic values; and
- a control step of controlling the color processing of the color image, on the basis of the weights and the first and second characteristic values.
Priority Claims (2)
Number |
Date |
Country |
Kind |
1-109511 |
Apr 1989 |
JPX |
|
1-117020 |
May 1989 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/076,707 filed Jun. 15, 1993, which was a continuation of application Ser. No. 07/514,317 filed Apr. 25, 1990, both now abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (2)
Number |
Date |
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258740 |
Mar 1988 |
EPX |
266186 |
May 1988 |
EPX |
Continuations (2)
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Number |
Date |
Country |
Parent |
76707 |
Jun 1993 |
|
Parent |
514317 |
Apr 1990 |
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