Shaped Singular Spectrum Analysis for Quantifying Gene Expression, with Application to the Early Drosophila Embryo

Figure 4

hb: the original image and the elementary components extracted by circular 2D-SSA. The original image and the leading component (F1) are colour-mapped according to the min and max expression levels. For more contrast, the remaining components are depicted in a binary format, with positive values in beige and negative values in purple.