Digital maps can best stored and distributed electronically using compressed raster image formats.We introduce as to rage system for the map images that supports compact storage size,decompression of partial image,and smooth transitions between var

Imagescn plot two or more imagesc into the same axes. Deeper layers are visible, were higher layers have the value NaN. This is helpful e.g. to show measurement (=foreground) results "above" a map (=background), to separate NaN values within a 2D mat