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US 9,886,733 B2Granted
Watermarking digital images to increase bit depth
AssigneeGoPro, Inc.
InventorBalineedu Chowdary Adsumilli
Life of this patent
Estimating the term…
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AssigneeGoPro, Inc.
InventorBalineedu Chowdary Adsumilli
Estimating the term…
Watermark data is converted to watermark coefficients, which may be embedded in an image by converting the image to a frequency domain, embedding the watermark in image coefficients corresponding to medium-frequency components, and converting the modified coefficients to the spatial domain. The watermark data is extracted from the modified image by converting the modified image to a frequency domain, extracting the watermark coefficients from the image coefficients, and determining the watermark data from the watermark coefficients. The watermark data may be truncated image data bits such as truncated least significant data bits. After extraction from the watermark, the truncated image data bits may be combined with data bits representing the original image to increase the bit depth of the image. Watermark data may include audio data portions corresponding to a video frame, reference frames temporally proximate to a video frame, high-frequency content, sensor calibration information, or other image data.
A computer-implemented method for compressing an image, the image comprising image data representative of the image, the method comprising:
A system for compressing an image, the image comprising image data representative of the image, the system comprising:
A non-transitory computer-readable apparatus comprising a medium adapted to store a computer program, the computer program having instructions for execution by a processor apparatus, the instructions being configured to, when executed, cause the processor apparatus to:
Dependencies are inferred from the claim text.