1. A method comprising: providing encoded image content; identifying, as errored content, at least one pixel in the image for which the image content has been decoded in error; processing the image content to substitute corresponding pixel values in place of the errored content to provide a version of the image comprising a resultant corrected image wherein the errored content is at least partially concealed; and creating ancillary information regarding the at least one pixel and the spatial location to which the at least one pixel corresponds to thereby provide a record that describes which pixels in the image content were decoded in error and substituted with the corresponding pixel values while processing the image content.