How to calculate height from a Matlab pcolor plot?

I have a pcolor plot in Matlab in which two objects are present. I need to calculate height (basically the distance) between these two objects. (Between the yellow line and the top) I extracted the data from the pcolor plot into a matrix and summed up the values to form one single column. How can I determine the height using this column? Thanks for any pointers or hints.

Answer 1

[Image Analyst]

Look for the highest peak.

% Get average vertical profile.
verticalProfile = mean(theImage, 2);
% Find highest value and it's row number:
[meanValue, row] = max(verticalProfile);

If that doesn't work then attach your original data (not a screenshot) as a PNG file.

[Sachin Nag]

Thanks for the answer. I have a doubt. What is the difference between finding mean and just summing values (each row) to get one single column?

[Image Analyst]

The mean is the sum divided by the number of elements. Same shape, it's just that mean will be in the same range as your original data while the sum has a lot higher values. You could use either.

[Sachin Nag]

I understand. Excellent and concise reply

[Sachin Nag]

I still have a doubt. How does one obtain height from this? It was a bit unclear to me

[Image Analyst]

I'm not sure what colormap you're using but if yellow is the highest value, then row is the row of the bright straight yellow line at 0.5. Using that plus the scale you used to put the axis in pcolor, you can find the height.