Figure 3
From: Using expression arrays for copy number detection: an example from E. coli
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2105-8-203/MediaObjects/12859_2007_Article_1575_Fig3_HTML.jpg)
Background Correction and Spatial normalization. Background correction steps: chip image prior to background correction [top left], residual map prior to correction [top right], smoothed residuals map [bottom left], residual map after background correction [bottom right].