Can somebody tell me why I have this Warning by using this code

D=imread('C:\Users\Users\Pictures\Doc3_files\Doc3_files\Capture.gif');

F=im2double(D);

symbols = unique(F(:));

counts = hist(F(:), symbols);

p = double(counts) ./ sum(counts);

r(p:q) = [y(1:i, j); eob];

count= count + i + 1; %and add to output vactor

F((count+1):end) = []; %delete unused portion of B

y.size=uint16([xm xn]);

y.numblocks = uint16(xb);

y.quality = uint16(quality * 100);

y.huffman = mat2huff(B)

Warning: Colon operands must be real scalars.

Undefined function 'y' for input arguments of type 'double'.

[Walter Roberta]

I'm trying to Compress an image by using Run Length coding and Huffman coding. Please would you like to help by showing me the right codes

[Walter Roberson]

What was your thought that

r(p:q) = [y(1:i, j); eob];

might mean?

Answer 1

[Image Analyst]

p is an array, so you can't do r(p:q) - it doesn't make sense. What are you wanting to do?