Steganography method based on carrier error vector

The invention discloses a steganography method based on a carrier error vector, aims to the problems of small steganographic capacity and poor anti-detection property of the existing image steganography algorithm, and explores and analyzes a steganography algorithm which reinforces the steganographic capacity, reduces the steganographic error and effectively improves the anti-detection capacity. The algorithm comprises the steps of carrying out image compression processing to obtain a compression reference value of a carrier image and carrying out difference processing with an original image to obtain the carrier error vector. Optimized analysis of spatial filtering parameters is carried out on a steganography image error vector set, and effective steganographic loading is carried out in a hybrid coding embedding method. 本发明公开了种基于载体误差向量的隐写方法，针对现有图像隐写算法中存在的隐写容量小及抗检测性能差的问题，探索分析了种增强隐写容量、降低隐写误差并有效提升抗检测能力的隐写算法。该算法通过对图像压缩处理，获取载体图像的压缩参考值，同原始图像进行差值处理，获取载体误差向量。并针对隐写图像误差向量集合进行空域滤波参数优化分析，在混合编码的嵌入方法中进行了有效的隐写载入。