Two-dimensional shape reconstructions. (A) Original image. (B and C) Reconstructions from SAXS data without and with upper-bound constraint. (D–F) Reconstructions from autocorrelation data with . (G–I) Reconstructions from cross-correlation data with . (J–L) Reconstructions from autocorrelation data with upper-bound constraint with . (M–O) Reconstructions from cross-correlation data with upper-bound constraint with .