how can change pixcle value to binary in matlab and write its bit in what variable?

I want to change my pixel values to binary . and i want to keep its binary value in a variable how can change it to binary and how can put it in a variable can i put it in an array with 8 index

Answer 1

[Walter Roberson]

See dec2bin(), which converts to string. If you want numeric form,

dec2bin(Value,8) - '0'

[sama h]

thanks i shouldsubtract it from 0?

Answer 2

[Image Analyst]

Perhaps you mean

thresholdValue = 128; % or whatever value you want/need.
binaryImage = grayScaleImage > thresholdValue;

Why don't you just attach your image and tell us what you want to measure or do to it?