Aiming at the problem that the robustness, visibility, and transparency of the existing visible watermarking technologies are difficult to achieve a balance, this paper proposes an adaptive embedding method for visible watermarking. Firstly, the salient region of the host image is detected based on superpixel detection. Secondly, the flat region with relatively low complexity is selected as the embedding region in the nonsalient region of the host image. Then, the watermarking strength is adaptively calculated by considering the gray distribution and image texture complexity of the embedding region. Finally, the visible watermark image is adaptively embedded into the host image with slight adjustment by just noticeable difference (JND) coefficient. The experimental results show that our proposed method improves the robustness of visible watermarking technology and greatly reduces the risk of malicious removal of visible watermark image. Meanwhile, a good balance between the visibility and transparency of the visible watermark image is achieved, which has the advantages of high security and ideal visual effect.

中文翻译：

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基于区域选择的自适应可见水印嵌入方法

针对现有可见水印技术的鲁棒性，可见性和透明性难以达到平衡的问题，提出了一种自适应的可见水印嵌入方法。首先，基于超像素检测来检测主图像的显着区域。其次，选择复杂度相对较低的平坦区域作为主图像非突出区域中的嵌入区域。然后，通过考虑嵌入区域的灰度分布和图像纹理复杂度来自适应地计算水印强度。最后，仅通过显着差异（JND）系数进行少量调整即可将可见水印图像自适应地嵌入到主图像中。实验结果表明，本文提出的方法提高了可见水印技术的鲁棒性，大大降低了恶意删除可见水印图像的风险。同时，在可见水印图像的可见性和透明度之间达到了良好的平衡，具有安全性高，视觉效果理想的优点。