convert an array of 0s and 1s to binary & reverse

38 views (last 30 days)
hi Community,
I have an array of type double that contain only zeros and ones.
i want to convert it to binary value like below
[0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1] ----> [0 255]
and do the same thing in reverse
already tried de2bi()
but nothing !!!
  2 Comments
Stephen23
Stephen23 on 13 Jun 2021
Edited: Stephen23 on 14 Jun 2021
What shape is the input data? What encoding does it use?
Rik
Rik on 13 Jun 2021
@Stephen, isn't that the normal encoding? 0-255 is a normal 8 bit range, right? Or am I confused?

Sign in to comment.

Accepted Answer

Walter Roberson
Walter Roberson on 14 Jun 2021
Edited: Walter Roberson on 14 Jun 2021
pad with 0 to a multiple of 8
2.^(7:-1:0) * reshape(padded, 8,[])
The result will be a vector of values 0 to 255
reverse:
bits = reshape(de2bi(bytes, 8),1,[])
and remember to remove the padding bits

More Answers (1)

Stephen23
Stephen23 on 14 Jun 2021
B = [0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1];
D = pow2(7:-1:0)*reshape(B,8,[])
D = 1×2
0 255

Categories

Find more on Data Type Conversion in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!