IMAGE PROCESSING SYSTEM AND IMAGE PROCESSING METHOD
First Claim
1. An image processing system in which a management server, a host computer, and a printer are connected via a network, and said host computer prints image data received from said management server based on a printing parameter indicating a printing condition set by a user using said printer,wherein said host computer receives image data appended with a visible digital watermark from said management server, detects a printing parameter set in said printer, collates the detected printing parameter with a limited parameter which is set in advance for the image data, and removes the visible digital watermark from the image data in accordance with a collation result.
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Accused Products
Abstract
There is provided an image processing system in which a management server, a host computer, and a printer are connected via a network, and said host computer prints image data received from said management server based on a printing parameter indicating a printing condition set by a user using said printer, wherein said host computer receives image data appended with a visible digital watermark from said management server, detects a printing parameter set in said printer, collates the detected printing parameter with a limited parameter which is set in advance for the image data, and removes the visible digital watermark from the image data in accordance with the collation result.
83 Citations
21 Claims
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1. An image processing system in which a management server, a host computer, and a printer are connected via a network, and said host computer prints image data received from said management server based on a printing parameter indicating a printing condition set by a user using said printer,
wherein said host computer receives image data appended with a visible digital watermark from said management server, detects a printing parameter set in said printer, collates the detected printing parameter with a limited parameter which is set in advance for the image data, and removes the visible digital watermark from the image data in accordance with a collation result.
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10. An image processing system in which a management server, a host computer, and a printer are connected via a network, and said host computer prints image data received from said management server based on a printing parameter indicating a printing condition set by a user using said printer,
wherein said host computer receives image data appended with a visible digital watermark from said management server, detects a printing parameter set in said printer, and sends the detected printing parameter to said management server, said management server collates the printing parameter received from said host computer with a limited parameter which is set in advance for the image data, and transmits a public key required to remove the visible digital watermark to said host computer in accordance with a collation result, and said host computer removes the visible digital watermark from the image data using the public key received from said management server.
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20. An image processing method for printing image data based on a printing parameter indicating a printing condition set by a user, said image processing method comprising the steps of:
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inputting image data appended with a visible digital watermark; detecting the printing parameter; collating the detected printing parameter with a limited parameter which is set in advance for the image data; and removing the visible digital watermark from the image data in accordance with a collation result. - View Dependent Claims (21)
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Specification