give me blowfish algorithm code in matlab for image encryption and decryption
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No. I will not give it to you.
On one hand your questions sounds like a command and is too unfriendly. On the other hand the publication of code for strong encryption is restricted by the US export laws and posting the code or a link to the code here would have legal consequences. MathWorks is forced to delete code for strong encryption.
[EDITED] I've removed my personal opinion about the legal restrictions.