Subscript indices must either be real positive integers or logicals.

Error in imcut NewIm = Image( (cr - 63):(cr + 64),(cc - 63):(cc + 64) );
Error in pcn1 xo = imcut(xr); subplot(6, 3, 3*rt+9*(sc-1)-2), imshow(xo)

pcn1.m

clear,close all,
addpath('functions\');
addpath('images\') 
x = imread('d:\segleaf\i1.jpg');
figure, 
for sc =1:2 
    xs = imresize(x,0.2*sc+0.6);
    for rt = 1:3 
        xr = imrotate(xs,rt*30-30,'bilinear','crop');
        xo = imcut(xr);
        subplot(6, 3, 3*rt+9*(sc-1)-2), 
        imshow(xo) 
        h = imhist(xo);
        subplot(6, 3, 3*rt+9*(sc-1)-1), 
        plot(h), xlim([0, 256]) 
        set(gca,'xtick',[],'xticklabel',[]);
        set(gca,'ytick',[],'yticklabel',[]);
        ts = SCM(xo);
        subplot(6, 3, 3*rt+9*(sc-1)), 
        plot(ts), 
        ylim([0, 5000]) 
        set(gca,'xtick',[],'xticklabel',[]);
        set(gca,'ytick',[],'yticklabel',[]);
    end
end

imcut.m

[r,c] = size(Image);
cc = floor(c/2);
cr = floor(r/2);
NewIm = Image( (cr - 63):(cr + 64),(cc - 63):(cc + 64) );
NewIm=logical(NewIm);

[James Tursa]

This is difficult to read. Can you please format it with the { } Code button to make it readable?

[per isakson]

I cannot reproduce the problem you report. See Debug a MATLAB Program

Answer 1

[Walter Roberson]

You are reading a JPEG. That is highly likely an RGB image rather than a grayscale image. Using

[r,c] = size(Image);

for an RGB image is almost always a mistake.

http://www.mathworks.com/help/matlab/ref/size.html

[d1,d2,d3,...,dn] = size(X), for n > 1, returns the sizes of the dimensions of the array X in the variables d1,d2,d3,...,dn, provided the number of output arguments n equals ndims(X). If n does not equal ndims(X), the following exceptions hold:

n < ndims(X)

di equals the size of the ith dimension of X for 0<i<n, but dn equals the product of the sizes of the remaining dimensions of X, that is, dimensions n through ndims(X).

Answer 2

[Image Analyst]

It says you're doing this:

xo = imcut(xr);

Yet your definition of imcut in imcut.m does not have a function line so how are you going to pass in xr?

Also, see this on how to use size(): http://blogs.mathworks.com/steve/2011/03/22/too-much-information-about-the-size-function/