Php/docs/imagick.steganoimage
来自菜鸟教程
Imagick::steganoImage
(PECL imagick 2, PECL imagick 3)
Imagick::steganoImage — Hides a digital watermark within the image
说明
Hides a digital watermark within the image. Recover the hidden watermark later to prove that the authenticity of an image. Offset defines the start position within the image to hide the watermark.
参数
watermark_wandoffset
返回值
成功时返回 true。