Image Steganography based on improved LSB algorithm

Aiming at the problem of copyright protection of electronic resources, this paper establishes a model based on the optimized LSB algorithm to implicitly write the target information into the image. The model first encodes the text and optimizes the LSB algorithm with a random search algorithm, so as to obtain picture after embedding the information. The output image is measured in terms of SSIM(StructureSimilarity Index Measure), MSE(Mean Square Error), PSNR(Peak Signal-to-Noise Ratio), and compared with the original unimproved LSB algorithm, which shows that the optimized LSB algorithm has improved compared with the original one.