Watermarking of raw digital images in camera firmware: embedding
Peter Meerwald and Andreas Uhl
3rd Pacific-Rim Symposium on Image and Video Technology, PSIVT '09
Tokyo, Japan; Jan. 13 - 16, 2009
In this paper we investigate 'real-time' watermarking of single-sensor digital camera images (often called 'raw'
images) and blind watermark detection in demosaicked images. We describe the software-only implementation of simple
additive spread-spectrum embedding in the firmware of a digital camera. For blind watermark detection, we develop a
scheme which adaptively combines the polyphase components of the demosaicked image, taking advantage of the
interpolated image structure.
Experimental results show the benefits of the novel detection approach for several demosaicking techniques.
Peter Meerwald, firstname.lastname@example.org