How to convert a picture code and add to site

Answer 1

What's the relation with C++ wich you've tagged along side with HTML5 in your question? You should provide relevant tags when creating a question ;P
Anyway, you should also be more accurate in the description of your problem (actually your question isn't so bad, but you'll be advised to edit the tags -- at least removing the one unrelated with your question -- and fill the description -- question post body -- with more information thzn your title give ;P)

Answer 2

Did you mean
Convert a picture to code?
Use base64