Introduction - If you have any usage issues, please Google them yourself
Understanding of 24 BMP images related to the structure, it is necessary for 24 of the BMP image encryption, because the BMP image by pixels, each pixel has three bytes, each byte has 8-bit binary components Therefore, change will not affect the lowest visual images. We will extract the lowest association with the high-7, the use of keys for encryption, so that the documents met the watermark embedding operation.