Cross-platform anti-compression color image information hiding algorithm based on RS and Hamming code

The invention relates to a cross-platform anti-compression color image information hiding algorithm based on RS and Hamming code. The algorithm comprises the steps of performing information encoding treatment on hidden information by using Reed-Solomon code in combination with Hamming code, extracting a DCT coefficient of a JPEG carrier image and quantizing the coefficient, statistically analyzing a noise threshold and adjusting the sizes of two intermediate frequency coefficient, and finally embedding the encoded information into the JPEG image. Even the JPEG image including the hidden information acquired according to the algorithm is compressed after being shared and forwarded across different network platforms, the hidden information can still be accurately and completely extracted. Therefore, according to the algorithm, the JPEG image has good resistance to repeated compression of platforms and strong stability. 本发明涉及种基于RS和汉明码的跨平台抗压缩彩色图像信息隐藏算法，结合里德-所罗门码（Reed-Solomon code，RS编码）和汉明编码对隐藏信息进行信息编码处理，提取JPEG载体图