Apparatus for analysing the connectivity of pixels in a raster scanned image frame.

摘要

A method and means for analysing and labelling picture elements (pixels) in a raster-scanned image includes utilising a fixed pixel labelling priority rule that takes into account near-neighbour frame border pixels that are not included in the currently-viewed portion of the image by substituting the inverse of the value of the current image pixel being labelled in place of undefined border pixels outside the viewed image portion.