Image processing device and image processing method
First Claim
1. An image processing device comprising:
- an output image generating unit which generates an output image in accordance with an input image;
a device identification information storage unit which stores device identification information, which is information for identifying the image processing device itself;
a standard information storage unit which stores standard information;
a comparison information generating unit which generates comparison information in accordance with first information including the device identification information retrieved from the device identification information storage unit;
a tracing identification information generating unit which generates tracing identification information, which has contents different from the standard information, in accordance with second information including the device identification information retrieved from the device identification information storage unit;
an adding unit which adds the tracing identification information generated by the tracing identification information generating unit to the output image;
an output unit which outputs the output image;
a determining unit which determines whether or not the comparison information generated by the comparison information generating unit matches the standard information retrieved from the standard information storage unit; and
a control unit which controls to prohibit the output image to be output by the output unit according to a determination result of the determining unit.
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Accused Products
Abstract
An image processing device inputs shading correction data, which can identify the image processing device itself, to a first hash function and generates comparison data. The image processing device inputs the shading correction data to a second hash function, and generates tracing identification data. The image processing device generates a tracing pattern from the tracing identification data, and adds the tracing pattern to output image data. The image processing device verifies the comparison data with standard data, which has been generated by inputting the shading correction data in a first function and previously stored in a storage device. When the comparison data matches the standard data, the image processing device permits to print out the output image data to which the tracing pattern has been added.
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Citations
20 Claims
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1. An image processing device comprising:
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an output image generating unit which generates an output image in accordance with an input image; a device identification information storage unit which stores device identification information, which is information for identifying the image processing device itself; a standard information storage unit which stores standard information; a comparison information generating unit which generates comparison information in accordance with first information including the device identification information retrieved from the device identification information storage unit; a tracing identification information generating unit which generates tracing identification information, which has contents different from the standard information, in accordance with second information including the device identification information retrieved from the device identification information storage unit; an adding unit which adds the tracing identification information generated by the tracing identification information generating unit to the output image; an output unit which outputs the output image; a determining unit which determines whether or not the comparison information generated by the comparison information generating unit matches the standard information retrieved from the standard information storage unit; and a control unit which controls to prohibit the output image to be output by the output unit according to a determination result of the determining unit. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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2. An image processing device comprising:
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an output image generating unit which generates an output image in accordance with an input image; a device identification information storage unit which stores device identification information, which is information for identifying the image processing device itself; a standard information storage unit which stores standard information; a comparison information generating unit which generates comparison information by converting first information including the device identification information retrieved from the device identification information storage unit in accordance with a first function; a tracing identification information generating unit which generates tracing identification information by converting second information including the device identification information retrieved from the device identification information storage unit in accordance with a second function; an adding unit which adds the tracing identification information generated by the tracing identification information generating unit to the output image; an output unit which outputs the output image; a determining unit which determines whether or not the comparison information generated by the comparison information generating unit matches the standard information retrieved from the standard information storage unit; and a control unit which controls to prohibit the output image to be output by the output unit according to a determination result of the determining unit. - View Dependent Claims (3, 4)
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11. An image processing method comprising the steps of:
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generating an output image in accordance with an input image; generating comparison information in accordance with first information including device identification information retrieved from a device identification information storage unit; generating tracing identification information, which includes contents different from standard information stored in a standard information storage unit, in accordance with second information including the device identification information retrieved from the device identification information storage unit; adding the tracing identification information generated at the tracing identification information generating step to the output image; outputting the output image; determining whether or not the comparison information generated at the comparison information generating step matches the standard information retrieved from the standard information storage unit; and controlling to prohibit the output image from being output at the outputting step in accordance with a determination result of the determining step. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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12. An image processing method comprising the steps of:
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generating an output image in accordance with an input image; generating comparison information by converting first information including device identification information retrieved from a device identification information storage unit in accordance with a first function; generating tracing identification information by converting second information including the device identification information retrieved from the device identification information storage unit in accordance with a second function; adding the tracing identification information generated at the tracing identification information generating step to the output image; outputting the output image; determining whether or not the comparison information generated at the comparison information generating step matches standard information retrieved from a standard information storage unit; and controlling to prohibit the output image from being output in the outputting step according to a determination result of the determining step. - View Dependent Claims (13, 14)
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Specification