MATLAB: Assignment has more non-singleton rhs dimensions than non-singleton subscripts, please help

errorMATLAB

I am writing a program that finds dark disks in an image then crops that image for a grouping of images.
After everyone's help i got the code to work up to actually saving an image.. heres the code so far
clear all; close all; clc;
%script for running several images through finddisk
path = 'C:\Users\darkloki3\Desktop\Research in Squires Lab\images for multidiskfind\cool frames';
destination= 'C:\Users\darkloki3\Desktop\Research in Squires Lab\images for multidiskfind\cool frames\cropped cool frames';
frames = dir(path);
%creating an array with the names of the image files in the folder
for n= 1:length(frames)
    filenumber = int2str(n);%integer to string

    while length(filenumber)<5
        filenumber=cat(2,'0',filenumber);
    end
    newfilename(n,:)=[path,filesep,filenumber,'.png'];
end   
threshold = 45;
if exist(destination) ~= 7
    mkdir(destination)
end
frames;
nu=1;
for i=1:895
    finddisk(newfilename(i,:),'png',threshold);
%     disk = ans;
%     %crop image around disk and save as a new image
    imwrite(ans,['C:\Users\darkloki3\Desktop\hopefully cropped',filesep,num2str(nu)],'jpeg')
    nu=nu+1;
end
for n= 1:length(frames)
    filenumber2 = int2str(n);%integer to string
    while length(filenumber2)<5
        filenumber2=cat(2,'0',filenumber2);
    end
    newfilename2(n,:)=[path,filesep,filenumber2,'.png'];
end   
for j=1:895
    finddiskcenter(newfilename2(j,:),'png',threshold);
    matrix=imread(newfilename2(j,:),'png');
    x=floor(ans(1,2));
    y=floor(ans(1,1));
    w=1;
    newmatrix=zeros(200);
    for i = (y-200):570
        z=1;
        for j = (x-200):760
            newmatrix(w,z) = matrix(i,j);
            z=z+1;
        end
        w=w+1;
    end
    imwrite(newmatrix,['C:\Users\darkloki3\Desktop\hopefully cropped',filesep,num2str(j)],'png')
end

Best Answer

I suggest changing:
newfilename(n,1)=[path,filesep,filenumber,'.png'];
to:
newfilename(n,:)=[path,filesep,filenumber,'.png'];
( i.e. inserting a colon ‘:’ in place of ‘1’ in the newfilename subscripts ) and see if that works. (It worked for me in a simulation.) If it doesn't, please list the error. This is not an insoluble problem!
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