How to convert an image for AES algorithm in Hexadecimal format input?

I know how to convert the file in byte format by using

fid = fopen(FileName, 'r');

if fid == -1, error('Cannot open file'); end

data = fread(fid, Inf, '*uint8');

fclose(fid);

But I want the file in hexadecimal format. How to convert it in hexadecimal format??? If I use dec2hex then the size of the file is too much so i cannot use this. So, how to convert file in hexadecimal for AES.

Plz... help....thanx.

Answer 1

[Walter Roberson]

datahex = sprintf('%02x', data);

[Radwa]

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