Dirty image comparison for observation ID 1098294120: panel (a) shows the dirty image using AOFlagger flags. Panel (b) highlights additional outliers detected by the winsorizing method within 97.92–99.20 MHz. Panel (c) displays the updated dirty image after adding GRANDWin flags, showing reduced contamination. Panel (d) shows the difference image between (a) and (c), illustrating the improvements achieved by combining both flagging methods.