What is the reason for this code to go out of memory?

 filename= 'train_images_idx3_ubyte';
 imgs=[];
readdigit =60000

% Read digits % This program reads 60000 binary image

 fid = fopen(filename, 'r','b');
 offset= fread(fid, 4, 'int32');
 imgs = fread(fid,inf, 'uchar'); 
 imgs = transpose(reshape(imgs,28*28,readdigits));
 fclose(fid);

In this code,if i didnt use transpose in line 7, it shows out of memory. I have 1.8 terabyte of memory. Then y it shows out of memory. If i use transpose, it goes good. Whats the reason?

Answer 1

[Image Analyst]

You're trying to reshape whatever you read in into a 784 (=28*28) row by 60 thousand column matrix. Why, when you only have 60 thousand numbers?

When you first get imgs, what does this say

whos imgs

Type memory on the command line and paste what you see back here.

>> memory