Column Selection

Column Selection Mode allows to select sections across the vertical lines on the image -- columns. Press the left Button of the Mouse on the column of interest - the vertical line will be selected and the section of it will appear in the window. The number of the column will also appear. The columns are counted beginning from the left. The selected column can be moved by keyboard buttons ``$\leftarrow$'' and ``$\rightarrow$''. If the image contains a noisy column it can be deleted by the menu command Line/ Smooth . As a result of this operation the selected column is substituted by the average value of two neighbor columns. The selected column may be substituted by the right or left neighbor column by the Menu Commands Line/ Replace to Upper and Line/ Replace to Lower .