In this paper, the authors proposed an effective algorithm for digital image transmission to happen without any losses. This paper provides a new symmetric key generation method for color images. The encrypted image is obtained with the help of three OTP (One Time Password) which provide two public key of matrix size 44 and 88 along the image. To obtain original image from encrypted data, a decryption process (reverse process of encryption) was used. Through this, the original image was retrieved successfully at receiving end.