The -e parameter sets the number of white colored test patches, defaulting to 4
if the -e flag isn't used. The white patches are usually very important in
establishing white point that the ICC data is made relative to, so it improves
robustness to use more than a single point.
does the colorspace should be set to grey or rgb when the -e flag isn't used
(default value set to 4) ?
The -B parameter sets the number of black colored test patches, defaulting to 4
if the -B flag isn't used and the colorspace is grey or RGB. The black point
can be very important for characterizing additive color spaces, so measuring
more than one black patch improves robustness over measuring just a single
point.
what will happen when -B flag isn't used and the colorspace is not grey or rgb
(for example the colorspace is cmyk)?
