Table 2: Image deblurring using LSQR and IDR( ) for “Lena” ( ).

Iter MV REN Iter MV REN Iter MV REN

LSQR 12 24 0.0919 58 116 0.0670 329 658 0.0486
IDR( ) 6 6 0.1344 36 36 0.7551 40 40 0.0488