matrix problem Matrix dimensions must agree

hello I have the following problem:

Error using -

Matrix dimensions must agree.

Error in CMF_Cut (line 136)

pts = divp -(ps - pt + u /cc );

I tried to use ./ but the problem remains the same

[madhan ravi]

size(divp), size(ps), size(pt), size(u) & size(cc) ?

[dakhli mohamed]

size(divp)
ans =
         652        4098

size(ps)
ans =
         652        1366           3

size(pt)
ans =
         652        1366           3

 size(u)
ans =
         652        1366           3

size(cc)
ans =
     1     1

[Walter Roberson]

Those arrays that are 652 x 1366 x 3 have the same number of elements as the array that is 652 x 4098, but they have different number of dimensions. How would you like to define the result of subtracting a 652 x 1366 x 3 array from a 652 x 4098 array ?

[madhan ravi]

Perhaps?

pts = divp(:)-reshape(ps - pt  + u /cc,[],1);

[dakhli mohamed]

I even tried with image size 285 * 285 and still the same type of error, but in the end I want to have an image of X * X

[Walter Roberson]

What is X here? In the case where you had the mix of 652 x 4098, compared to 652 x 1366 x 3, then what output size are you looking for?

[dakhli mohamed]

I found that my algorithm works with X * X double and the errue is that my image is of the form X * X * 3 it is necessary now that I convert it in the form X * X

[Walter Roberson]

Okay, so how do you want to do that conversion? For example do you want to extract the Saturation value of the HSV equivalent of an RGB image?

[dakhli mohamed]

Yes good idea