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US 11,308,572 B1Granted
Method and system for invisible watermarking of images and video
AssigneeXilinx, Inc.
InventorJack Benkual
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Abstract
Methods and systems for invisible watermarking of images and video are disclosed. According to one embodiment, a method for watermarking video comprises selecting a block corresponding to a subset of pixels in a video frame. The block has quantized coefficients generated during encoding of the block. A modification function is applied to a candidate quantized coefficient (QC) in the block to incorporate a bit of a watermark message. The modification function is based on a set of configuration parameters.
Claims30
A method for watermarking video, the method comprising:
- selecting a block corresponding to a subset of pixels in a video frame, the block having quantized coefficients generated during encoding of the block;
- and
- applying a modification function to a candidate quantized coefficient (QC) in the block to incorporate a bit of a watermark message, wherein the modification function is based on a set of configuration parameters.
A video watermarking system comprising:
- a processor;
- and
- a memory in communication with the processor and comprising instructions which, when executed by the processor, program the processor to:
- select a block corresponding to a subset of pixels in a video frame, the block having quantized coefficients generated during encoding of the block;
- and
- apply a modification function to a candidate quantized coefficient (QC) in the block to incorporate a bit of a watermark message, wherein the modification function is based on a set of configuration parameters.
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Dependencies are inferred from the claim text.