Patent ID: 7860267
Filing Date: 2010-12-28
Classification: G06T,H04N

Abstract:
1. A method for adding watermark information to image data, comprising: generating, at an image processing device, image data corresponding to an image scanned at the image processing device; tagging, at the image processing device, the image data with a tag indicating a digitally signed document; transmitting the image data including the tag indicating a digitally signed document from the image processing device to a computer remote from the image processing device; detecting, at the computer, the tag indicating a digitally signed document; selecting, at the computer, watermark information to be added to the image data based on the detection of the flag indicating a digitally signed document; detecting, at the computer, a lowest image density of the image data; adjusting, at the computer, an image density of the selected watermark information to be lower than the lowest image density of the image data; and merging, at the computer, the image data with the selected watermark information.