| 摘要 |
Embedded data is accurately detected from an image of a printed matter recording an image in which data has been embedded, which has been obtained by an imaging means, even if the imaging means is not of high-performance. An imaging portion of a camera equipped cellular phone images a printed matter, on which an image data in which the URL of the storage location of audio data has been embedded as a digital watermark is recorded, to obtain an image data. A distortion correcting portion corrects the image distortions caused by the imaging portion to obtain a corrected image data, and detects the URL from the corrected image data. The data representing the detected URL is sent to an image server, which retrieves, based on the URL, the audio data, and sends it to the camera equipped cellular phone. The camera equipped cellular phone reproduces the audio data.
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