How to count the number of black pixels in each row & column seperately?

Hello Sir, I would want to analyze signature based on various features. For this, I need to obtain different features. One would be obtaining the row & highest black pixels & column with highest black pixels. Could you please tell me how can I use histogram to do this? I have binary image of signature.

[Stephen23]

"...how can I use histogram to do this?"

Why do you want to use a histogram? Surely sum would be simpler.

[KALYAN ACHARJYA]

The histogram does not relate with spatial (Position) coordinates.

Second Part:

obtaining the row & highest black pixels & column with highest black pixels. You can proceed the following way

rows_num(i)=sum(k2(i,:)); 
% find the minimummvalue of rows_num, decided the i(row number)

[swathi]

Thank you very much.

Answer 1

[dpb]

x is the image array...

[rmax,rloc]=max(sum(x));
[cmax,cloc]=max(sum(x,2));