After finishing
collecting pictures of the standards, then, selected the “Red” or
“Green” or “Blue” or RGB option and touch “Done”, a slope and R2
were calculated and displayed on the screen. If the data was poorly
correlated (R2
o0.99), the “Cancel” option was selected, whereas if it
was well correlated (R2
Z0.99), “Accept” was chosen to return to the
main menu.