Image processing method, image processing apparatus and recording medium
AssigneeCanon Kabushiki Kaisha
InventorsTetsuya Suwa, Kentaro Yano, Manabu Yamazoe
Life of this patent
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Abstract
In order to enable satisfactory image processing according to a characteristic of an original image, image data representing an original image is input; it is judged whether or not the value of a saturation component of the image data is larger than a predetermined value; if the value of the saturation component of the image data is larger than the predetermined value, a histogram of the original image is formed except the image data; a color processing condition is set on the basis of the formed histogram; and color processing is performed to the original image on the basis of the set color processing condition.
Claims8
An image processing method comprising the steps of:
- inputting image data representing an original image;
- judging whether or not the value of a saturation component of the image data is larger than a predetermined value;
- forming a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value;
- and
- performing color processing to the original image data by using the color processing condition obtained from the histogram formed in said forming step.
An image processing apparatus comprising:
- an input unit adapted to input image data representing an original image;
- a judgment unit adapted to judge whether or not the value of a saturation component of the image data is larger than a predetermined value;
- a formation unit adapted to form a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value;
- and
- a color processing unit adapted to perform color processing to the original image data by using the color processing condition obtained from the histogram formed by said forming unit.
A recording medium for recording a computer-readable program to execute an image processing method comprising the step of:
- inputting image data representing an original image;
- judging whether or not the value of a saturation component of the image data is larger than a predetermined value;
- forming a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value;
- and
- performing color processing to the original image data by using the color processing condition obtained from the histogram formed in said forming step.
Dependencies are inferred from the claim text.