I used Totallab TL120 software for density analysis of WB bands.
But sometimes I am faced with the problem of "inverted images".
The software automatically converted band images to software files, and I can go on with the procedure.
But there is problem with inversion.
When the band image is inverted in black and white I can't quantify the band.
The website which shows information about this problem said to "just click the 'Reverse colors' button".
But when I click that button, even though the image turns back to its real white and black color, I can determine the bands density.