java – Can I get AES CBC key from known plaintext, ciphertext, iv?

Long story short: I was using AES CBC PKCS5 on my image server, but I lost my keys (one key per image).

I know the first 61 bytes (the original and the encrypted) of each image plus I know the IV, and the key length is 256.
My question is that can I compute the key from these things?