how to get higher bits using matlab?

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hodahussein

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dear all

i have matrix 45*67 in matlab,each element represented by 8bit, i want to convert it to hex so by using dec2hex this matrix converted to 3015*2 OK, but i need to anding(loicg and) it with 0xF0 to obtain higher bits or how can i remove lower bits?
could any one help me ?

wait your reply
regards
 

You needn't to do the binary conversion, you can just do:
Code: 
floor(x/16)
where x is your array.
 
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