Image processing method and apparatus
First Claim
1. An image processing method comprising the steps of:
- preliminarily setting a plurality of basic compression characteristics or basic expansion characteristics of image information;
selecting one or more basic compression characteristics or basic expansion characteristics from said plurality of basic compression characteristics or basic expansion characteristics; and
compressing or expanding gradation of said image information using the thus selected one or more basic compression characteristics or basic expansion characteristics.
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Abstract
The image processing method and apparatus set preliminarily a plurality of basic compression characteristics or basic expansion characteristics of image information, select one or more basic compression characteristics or basic expansion characteristics from the plurality of basic compression characteristics or basic expansion characteristics, and compress or expand gradation of the image information using the one or more basic compression characteristics or basic expansion characteristics. Optionally, these method and apparatus analyze the image information, set a processing condition for compressing or expanding the gradation of the image information in accordance with an analysis result and process the image information in accordance with the processing condition. The method and apparatus can perform the dodging processing having the excellent characteristics in a shorter period of processing time than the conventional method and can favorably enhance productivity of print production.
25 Citations
15 Claims
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1. An image processing method comprising the steps of:
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preliminarily setting a plurality of basic compression characteristics or basic expansion characteristics of image information;
selecting one or more basic compression characteristics or basic expansion characteristics from said plurality of basic compression characteristics or basic expansion characteristics; and
compressing or expanding gradation of said image information using the thus selected one or more basic compression characteristics or basic expansion characteristics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image processing method comprising the steps of:
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preliminarily setting a plurality of basic compression characteristics or a plurality of basic expansion characteristics;
selecting one or more basic compression characteristics or one or more basic expansion characteristics from said plurality of basic compression characteristics or said plurality of basic expansion characteristics;
analyzing image information;
setting a processing condition for compressing or expanding gradation of said image information using the thus selected one or more basic compression characteristics or the thus selected one or more basic expansion characteristics in accordance with an analysis result obtained by thus analyzing the image information; and
processing said image information in accordance with the thus set processing condition.
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11. An image processing method comprising the steps of:
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preliminarily setting a plurality of basic compression characteristics or a plurality of basic expansion characteristics;
selecting one or more basic compression characteristics or one or more basic expansion characteristics from said plurality of basic compression characteristics or said plurality of basic expansion characteristics;
setting a processing condition for compressing or expanding gradation of image information using the thus selected one or more basic compression characteristics or the thus selected one or more basic expansion characteristics by an manual operation; and
processing said image information in accordance with the thus set processing condition.
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12. An image processing apparatus comprising:
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a selecting device for selecting one or more basic compression characteristics or basic expansion characteristics from preliminarily set plurality of basic compression characteristics or basic expansion characteristics for use in compressing or expanding gradation of image information supplied by an image information supply source; and
an image processing device for compressing or expanding the gradation of said image information using said one or more basic compression characteristics or basic expansion characteristics selected by said selecting device. - View Dependent Claims (13, 14, 15)
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Specification