Information security has become the main concern of the most famous researchers and the focus of their attention, as they are constantly trying to find the best and safest ways to transfer information through a secure tunnel to protect it from hacking attempts and common attacks on the Internet and in this research, we tried to embody one of the methods of security in protecting data. In this study, a new approach to masking information based on the incorporation of LSB replacement mechanism and edge detection is proposed. To avoid HVS mining when more covert bits are included in pixels, we classify cover pixels into edge regions and non-edge regions. Then, the pixels belonging to the edge region are used to transmit more secret bits. In addition, to increase the load as well as maintain good image quality, we adopt a clever method in which the edge information is identified by the most important bits (MSBs) of