A method according to one aspect of the invention includes data into an image including a detecting an edge in the image, identifying a portion of the image having a known spatial relationship with the edge, and applying a transform to the portion of the image to provide a data space for inserting the data into the image. A method of detecting data in an image includes detecting an edge in the image, identifying a portion of the image having a known spatial relationship with the edge, and applying a transformation to the portion of the image source to provide a data space from which to detect the data.