Colour-coded errors resulting from application of our method to images of subset 2. Each box of a given colour corresponds to a different observation (there are 200 boxes in all). Each row (column) of boxes shows results derived from a given observation (imposed CC relation). Note the different scale of the colour code, as represented by the corresponding colour bars; a) mean relative and b) rms difference between the NSB and the imposed background for all images, c) mean relative and d) rms difference between the retrieved contrast image and the original data. The values are given for disc positions within 0.98 R.
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