what does k = 0:25.5:255 function means

for k = 0:25.5:255

io = imread('MRI.png')

ig = rgb2gray(io)

subplot(1,1,1)

imshow(ig)

[r,c] = size(ig) % r=row,c=column

disp9[r,c])

[mohammad mehio]

what does k= 0:25.5:255 means

Answer 1

[Adam]

doc colon

It means create an array starting at 0, incrementing by 25.5 each time, with a maximum value of 255.

Easiest way to see these things for yourself is just do it on command line on its own and see the result. Note that if the end value is not excactly on the increment from the start point then this value will not be included. It is a maximum end point for the array rather than an specific end point.

In this case it will be included:

0:25.5:255

ans =

0   25.5000   51.0000   76.5000  102.0000  127.5000  153.0000  178.5000  204.0000  229.5000  255.0000

[mohammad mehio]

thank you