Error using reshape : number of elements must not change.

Hi there,

I am currently working on a communication system with a little of chaiotic cipher for greyscale images

but

I have a problem with reshape function ,

due to my little experience i don't know what is wrong or how to fix it

if you can help me fix it i would be thankfull

the project files:

images_chaotic_NOMA_2222222.m : line 56

error : Error using reshape

To RESHAPE the number of elements must not change.

Thanks in Advance.

Answer 1

[KSSV]

Read the documentation of reshape. The error is clear, you are trying to ressape an array with m*n elements to an array greater or less than m*n of elements. The number of elements in the reshaped array also shoould be m*n, if not you will gt same error.

A = rand(4,4) ;
B = reshape(A,8,2);  % no error
C = reshape(A,2,8);  % no error
D = reshape(A,5,3) ;  % error, 15 < 16 

Error using reshape
Number of elements must not change. Use [] as one of the size inputs to automatically calculate the appropriate size for that dimension.