How do you write ntensities and pixel coordinates to a file?

Hi, I wrote the following code:

I = imread('example.PNG');
I = rgb2gray(I);
a = (I<100 & I>50);
imshow(a);
impixelinfo

but I want to write the pixel information from a to a file, but I don't know how to get matlab to output the coordinates.

Can someone help?

(I will be eternally grateful!)

Answer 1

[Image Analyst]

How about

csvwrite(filename, I);