An image processing apparatus is operable to embed data into an image. Images such as those generated from an inter-laced scan may comprise a frame of image data, the frame comprising first and second image fields. The image processing apparatus comprises a combining processor operable to introduce the...http://www.google.es/patents/US7171017?utm_source=gb-gplus-sharePatente US7171017 - Apparatus for embedding data into transform and spatial domains of an image
Apparatus for embedding data into transform and spatial domains of an image
