Figure 1
From: Restoration of recto–verso colour documents using correlated component analysis
A numerically generated recto–verso RGB document: (a) degraded recto; (b) degraded verso; (c) recto restored by decorrelating the three pairs of channels separately; (d) verso restored by decorrelating the three pairs of channels separately; (e) recto restored by applying CCA to the three pairs of channels separately; (f) verso restored by applying CCA to the three pairs of channels separately.