(1) add the advanced width calculation
(2) add the automatic estimation of the optimal bins number of the histogram
(3) change the version number to V1.3 Beta2
add the function to check if the opening image has the associated .mat file
the third party code for converting numbers to Excel column letters
fix the bug that the fiber number is not displayed in angle, straightness and width bar plot
(1) add the parameters to control width estimation
(2) add the optional output of the maximum width of each extracted fiber