stright line in one column or raw

could any one help me ?

if i have a line as figure shown with pexils which does not exixt in one line (raw or column ) how can i make this line completely stright ? what code i hav to write ?

Answer 1

[Image Analyst]

Just get the coordinates

[rows, columns] = find(grayImage < 128);

Then find the max and min:

row1 = min(rows);
row2 = max(rows);
% Find average column
meanColumn = int32(mean(columns));

Then draw the line

grayImage(row1:row2, meanColumn) = 0;

[majed majed]

so great ... thanks full of sky .

[majed majed]

what if i want to delete the other cells which exist to the side of the new line ?

[Image Analyst]

What "cells"? Do you mean pixels? And what does "delete" mean to you, keeping in mind that an image must remain rectangular. Do you just want to replace them (not delete them) with white pixels? Then why not just draw the line on a completely new white image

whiteImage = 255 * ones(rows, columns, 'uint8');
whiteImage(row1:row2, meanColumn) = 0;

[majed majed]

yeah , i mean to replace not to delete cells ,thanks a lot.