Digital product content protection system and method based on digital water mark
A technology of digital watermarking and digital products, applied in the direction of program/content distribution protection, electronic digital data processing, image data processing, etc., can solve the problems of infringement of legal rights and interests of digital product content owners, poor security, protection, etc., to ensure protection The balance between safety and efficiency, effective protection, and the effect of preventing loss
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[0163] In this embodiment, taking the original content as an AVS video stream as an example, the detailed steps of the digital watermark-based digital product content protection method provided by the present invention are further described in conjunction with the accompanying drawings.
[0164] Such as Figure 14 as shown, Figure 14 It is a flowchart of a method for protecting digital product content based on a digital watermark according to an embodiment of the present invention. The method includes the following steps:
[0165] Step 1401: The parser parses out the last bit of the exponential Golomb code of mv_diff_x and mv_diff_y, the last bit of trans_coefficient and the last bit of intra_luma_pred_mode from the received original content.
[0166] Step 1402: The parser outputs the last bit of the exponential Golomb code of mv_diff_x and mv_diff_y, the last bit of trans_coefficient and the last bit of intra_luma_pred_mode to the classification combiner.
[0167] Step 140...
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