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US08451501B2 Watermark decoding via spectral analysis of pixel spacing 有权
通过像素间隔的频谱分析进行水印解码

Watermark decoding via spectral analysis of pixel spacing
摘要:
Provided are methods, apparatus and systems related to watermark decoding via spectral analysis of an image. According to one exemplary method, spectral analysis is performed to decode a watermark within an image, where the pixel spacing associated with the image was modulated to encode the watermark.
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