Translucent embedded watermarking

A watermark image may be generated, the watermark image comprising a first set of encoded pixels, each of the first set of encoded pixels being assigned a first transparency value, and a second set of encoded pixels, each of the second set of encoded pixels being assigned a second transparency value, the second transparency level being different from the first transparency level. The encoded pixels may be distributed between a set of blank pixels such that each encoded pixel is adjacent to one or more blank pixels in the watermark image, in particular to at least two blank pixels in the watermark image. Here, each blank pixel may be assigned a second transparency value. The watermark image may be overlaid and mixed on the background source image to create an encoded source image. A decoder system may restore encoding information from an encoded source image. 可以生成水印图像，该水印图像包括第一组编码像素和第二组编码像素，第一组编码像素中的每一个被分配第一透明度值，第二组编码像素中的每一个被分配第二透明度值，第二透明度级别不同于第一透明度级别。编码像素可以分布在一组空白像素之间，使得每个编码像素与水印图像中的一个或多个空白像素相邻，具体地，与水印图像中的至少两