标题： 一种结合伪随机像素选择的新型APVD隐写技术，用于增强图像安全 显示英文标题

标题： A Novel APVD Steganography Technique Incorporating Pseudorandom Pixel Selection for Robust Image Security

摘要： 隐写术是将秘密信息隐蔽地嵌入载体中的过程，确保机密数据的安全交换。 自适应像素值差分（APVD）隐写方法虽然有效，但会遇到诸如“未使用块”等问题。 这个问题可能导致安全性的降低，损害嵌入容量，并导致视觉质量下降。 本研究提出了一种新的隐写策略，将APVD与伪随机像素选择相结合，以有效缓解这些问题。 结果表明，新方法在安全性、数据隐藏容量和图像质量的保持方面优于现有技术。 实证结果表明，APVD与伪随机像素选择的结合显著提高了关键图像质量指标，如峰值信噪比（PSNR）、通用图像质量指数（UIQ）和结构相似性指数（SSIM），在性能上超越了其他现代方法。 所提出的新型方法具有通用性，能够处理彩色和灰度的各种载体图像和秘密图像，从而确保数据传输的安全性，而不会影响图像的美学质量。 显示英文摘要

摘要： Steganography is the process of embedding secret information discreetly within a carrier, ensuring secure exchange of confidential data. The Adaptive Pixel Value Differencing (APVD) steganography method, while effective, encounters certain challenges like the "unused blocks" issue. This problem can cause a decrease in security, compromise the embedding capacity, and lead to lower visual quality. This research presents a novel steganographic strategy that integrates APVD with pseudorandom pixel selection to effectively mitigate these issues. The results indicate that the new method outperforms existing techniques in aspects of security, data hiding capacity, and the preservation of image quality. Empirical results reveal that the combination of APVD with pseudorandom pixel selection significantly enhances key image quality metrics such as Peak Signal-to-Noise Ratio (PSNR), Universal Image Quality Index (UIQ), and Structural Similarity Index (SSIM), surpassing other contemporary methods in performance. The newly proposed method is versatile, able to handle a variety of cover and secret images in both color and grayscale, thereby ensuring secure data transmission without compromising the aesthetic quality of the image.