Combination of single-scale images (Sect. 2.4). The field of Fig. 2 is shown as source masks ℳDC accumulated over all scales and wavebands (upper left) that give a summary view of how the sources, made visible by the cleaning (cf. Fig. 3), change their shapes and sizes. The same set of spatial scales is displayed in the combined clean single-scale images ℐDj C (left to right, top to bottom) that accumulate information at those scales from all wavelengths. For better visibility, the values displayed in the masks image are limited to 300 and in the normalized images ℐDj C they are limited to 0.07, 0.3, 0.3, 0.6, and 0.6. The scale sizes Sj are visualized by yellow-black circles and annotated at the bottom of the panels. The color coding is a logarithmic function of intensity.
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