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US 7,599,081 B2Granted
Detecting and protecting a copy guarded document
AssigneeRicoh Company, Ltd.
InventorsHiroshi Shimura, Guan Haike, Masaaki Ishikawa, Takashi Saitoh, Hiroshi Arai
Life of this patent
Estimating the term…
Abstract
A detection result indicating whether a document image is copy guarded is generated. Based on the detection result, information contained in the document image is concealed.
Claims26
An image processing apparatus, comprising:
- an input device configured to obtain a document image and to apply input processing to the document image;
- a common image processor configured to apply common image processing to the document image processed by the input device;
- a specific image processor configured to apply specific image processing to the document image processed by the common image processor;
- an output device configured to apply output processing to the document image processed by the specific image processor;
- a detector configured to detect whether the document image is copy guarded at a detection time point to generate a detection result;
- and
- a processor configured to select an application of the document image from a plurality of applications according to a user instruction as a selected application, to determine the detection time point based on the selected application, and to cause the detector to detect whether the document image is copy guarded at the determined detection time point.
4 more elements
An information processing apparatus, comprising:
- a storage device configured to store a plurality of applications, each application causing a document image to be output in a specific format;
- a processor configured to analyze a user instruction and to select an application from the plurality of applications according to a user instruction as a selected application;
- and
- a storage device configured to store a plurality of instructions which, when activated by the processor, causes the processor to perform at least one function of a plurality of functions according to the user instruction, the functions comprising:
- inputting a document image;
- applying common image processing to the document image;
- applying specific image processing to the document image;
- outputting the document image;
- and
- detecting whether the document image is copy guarded at a detection time point to generate a detection result, wherein the processor is further configured to determine the detection time point based on the selected application, and to cause the function of detecting whether the document image is copy guarded to be performed at the determined detection time point.
7 more elements
A method for processing a document image using an image processing apparatus, the method comprising the steps of:
- selecting an application of a document image from a plurality of applications according to a user instruction as a selected application;
- determining a detection time point based on the selected application;
- inputting the document image;
- first applying common image processing to the document image;
- second applying specific image processing to the document image;
- outputting the document image in a specific format determined by the selected application;
- and
- detecting whether the document image is copy guarded at the detection time point determined by the determining step to generate a detection result.
5 more elements
A computer readable medium storing computer instructions for performing an image processing operation comprising the steps of:
- selecting an application of a document image from a plurality of applications according to a user instruction as a selected application;
- determining a detection time point based on the selected application;
- inputting the document image;
- first applying common image processing to the document image;
- second applying specific image processing to the document image;
- outputting the document image in a specific format determined by the selected application;
- and
- detecting whether the document image is copy guarded at the detection time point determined by the determining step to generate a detection result.
5 more elements
Dependencies are inferred from the claim text.