sliding window on gradient image objects

Sir, How to Compute Height of the each Gradient text block? Consider width (W) is also same as H, With these H and W, how to get one square block? and how to Move this square as a sliding window? after this for each sliding window, how to plot a histogram to choose highest peak. lastly Display all pixel in the highest peak as white pixels in the separate image. please give me a help in matlab code.....

[Walter Roberson]

Why bother with creating one histogram per sliding window? Why not just use max() over the contents of the window?

[Basavanna M]

sir, how to implement the sliding window on gradient image and how to plot histogram for each sliding window? please....

[Walter Roberson]

What exactly is to be histogrammed? A histogram is not appropriate for discovering the maximum of a set of values.

[Basavanna M]

for each sliding window how to plot histogram?

[Walter Roberson]

You have to name what it is that you want to plot the histogram of