Some sample data seem to have overflow of integer values (see black pixels in the center of cells). This usually happens when an integer value is above the upper bound of what N bits can represent. Likely occurred during some conversion of 16 to 8 bits.
Some sample data seem to have overflow of integer values (see black pixels in the center of cells). This usually happens when an integer value is above the upper bound of what N bits can represent. Likely occurred during some conversion of 16 to 8 bits.