Power spectra of a noisy κ-map of 512 × 512 pixels (DR3-like configuration with pixel resolution 0$\stackrel{\prime }{.}$59 ) reconstructed from complete shear maps (black using KS) and from incomplete shear maps with ≈20% of empty pixels (blue using KS and red using KS+) randomly set to zero before the mass inversion. In order to focus on a specific scale, a 2$\stackrel{\prime }{.}$34 wavelet filter kernel is applied to the complete shear maps before applying random empty pixels. The signal leakage into the empty pixels is thus only induced by the FFT mass reconstruction.