| 摘要 |
The present invention relates generally to digital watermarking and steganographic encoding. One claimed method recites a method including: obtaining video or image data, the video or image data comprising information steganographically hidden in data representing perceptual portions of the video or image data; analyzing the video or image data to obtain the hidden information, the information comprising data associated with suitability for viewing of the video or image data for a particular demographic; comparing the data to predetermined information; and based at least on said act of comparing, determining whether to render the video or image data for display. Other combinations are provided and claimed as well.
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