如何自建这种活水印或者用API

gger

https://developer.qiniu.com/dora/1316/image-watermarking-processing-watermark

WordPress有没有相关插件

gger

哪个相册系统有这个功能吗

gpt给了这么个答案

1. // 加载原始图像和水印图像
   
2. $srcImg = imagecreatefromjpeg('path/to/source/image.jpg');
   
3. $watermarkImg = imagecreatefrompng('path/to/watermark/image.png');
   
4. 
   
5. // 获取原始图像和水印图像的宽度和高度
   
6. $srcWidth = imagesx($srcImg);
   
7. $srcHeight = imagesy($srcImg);
   
8. $watermarkWidth = imagesx($watermarkImg);
   
9. $watermarkHeight = imagesy($watermarkImg);
   
10. 
    
11. // 计算水印放置的位置
    
12. $watermarkX = ($srcWidth - $watermarkWidth) / 2; // 居中放置
    
13. $watermarkY = ($srcHeight - $watermarkHeight) / 2;
    
14. 
    
15. // 将水印图像合并到原始图像中，并设置透明度
    
16. imagecopymerge($srcImg, $watermarkImg, $watermarkX, $watermarkY, 0, 0, $watermarkWidth, $watermarkHeight, 50);
    
17. 
    
18. // 输出处理后的图像
    
19. header('Content-Type: image/jpeg');
    
20. imagejpeg($srcImg);
    
21. 
    
22. // 释放内存
    
23. imagedestroy($srcImg);
    
24. imagedestroy($watermarkImg);

复制代码

gger

?x-oss-process=image/resize,m_fill,w_640,h_360/watermark,image_d2F0ZXJtYXJrL3Byb2plY3RfY2FzZV9jb3Zlcl9sb2NrX2xheWVyLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzEwMA==,t_100,g_nw,x_0,y_0

他们的后缀都是这种的