Abstract: A mirror assembly (18) for displaying an image (15) in conjunction with the reflection (14?) of a viewer comprises a mirror (2), which is equipped with a reflective polariser (13), arranged to reflect light (3) incident on its viewing side and transmit light (4) incident on its non-viewing side, where the reflected light (3) and transmitted light (4) may be of different polarization. The image (15) is displayed by a device (5) located on the non-viewing side and focused by a focusing element, e.g. one or more lenses (12, 12a), onto an image plane. The image plane may be located between the mirror (2) and viewer (14), so that a perceived image (15?) appears to stand out from the mirror (2). Alternatively, the image plane may be located so that the perceived image (15?) forms a background in which the viewer's reflection (14?) is immersed. The mirror assembly (1) may further comprise one or more detectors (19) for obtaining a silhouette (21) of the viewer (14).

Abstract: A mirror assembly (18) for displaying an image (15) in conjunction with the reflection (14?) of a viewer comprises a mirror (2), which is equipped with a reflective polariser (13), arranged to reflect light (3) incident on its viewing side and transmit light (4) incident on its non-viewing side, where the reflected light (3) and transmitted light (4) may be of different polarisation. The image (15) is displayed by a device (5) located on the non-viewing side and focussed by a focussing element, e.g. one or more lenses (12, 12a), onto an image plane. The image plane may be located between the mirror (2) and viewer (14), so that a perceived image (15?) appears to stand out from the mirror (2). Alternatively, the image plane may be located so that the perceived image (15?) forms a background in which the viewer's reflection (14?) is immersed. The mirror assembly (1) may further comprise one or more detectors (19) for obtaining a silhouette (21) of the viewer (14).

Abstract: An input image is distorted so that it has less correlation to a watermark and the distorted image is subtracted from the input image to provide a preprocessed image. If the correlation between the preprocessed image and a watermark is sufficient then the watermark is detected in the input image. The distortion may be a spatially-variant distortion such as stretching, shrinking, shearing or rotation or the distortion may be a non-linear transforming or filtering such as median, local minimum or local maximum filtering.