Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
我的应用程序正在从 url 下载图像,有时这些图像是完全透明的,大小为 600 x 400 像素甚至更大。我想检测这些图像并忽略它们。有没有办法做到这一点?