Image Normalization between range 0 - 1

I need help with my project. My supervisor said to normalize an image within the range of 0 - 1 which i did, but he wants it to give just one value instead of the matrix values its generating. This is the code i used to normalize

function normImage = NPSS(img)
clear all
img = imread('ps.jpg','jpg');
normImage = mat2gray(img);

[Guillaume]

What does "give just one value instead of the matrix values its generating" mean? Why don't you ask your supervisor if you haven't understood what he/she means?

Note that clear all must not be used in a function (and really shouldn't be used in scripts either). The only reason it doesn't cause your function to fail is that you're not using the function input.

Answer 1

[Bjorn Gustavsson]

It sounds like you need to ask your advisor what he wants. In my not necessarily humble opinion images ought to contain different values in many pixels. As a first guess I assume that he wants you to select some threshold level and set all pixel with intensities above that to 1 and those below to 0, but ask for clarification...

HTH,

Answer 2

[Image Analyst]

Offer him the value 42.

function justOneValue = NPSS(img)
justOneValue = 42;

If he's not happy with that then ask him why not.

[Guillaume]

Having been a supervisor to a few students, I strongly suspect that the issue is not with what the supervisor asked but with the student's understanding and rewording of what was asked.

... or we can build a supercomputer to know what the question was. Less than 2 millions more year to wait... as long as the Vogons don't build that highway...