Security nowadays has become an important issue, encryption has come up as a solution, and plays an important role in information security system. Image encryption and decryption is a process where people encrypt and decrypt image. There are two main methods of encrypting and decrypting which is Symmetric and Asymmetric cryptography. We have chosen AES algorithm for symmetric and RSA algorithm for asymmetric. AES256 block is implemented where block size and key length is both 256 bit while RSA is implemented using a complex prime number as input from the user and encrypting the image with public key and decrypting by private key. Hence, in this paper we implemented two encryption techniques AES and RSA algorithms and compared their performance of encryption techniques based on the analysis of its simulated time for encryption and decryption, number of pixel change rate and pixel correlation analysis. Experiments results are given to analyze the effectiveness of each algorithm. Also based on the experiments performed we have implemented the hybrid of both AES and RSA.