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.
试图找出一种方法来 lzw 压缩 tif 而不会丢失 alpha 通道。我只能确定 alpha 通道是否在文件中，但是当我确定以下命令时，它会消除 alpha 通道：
sips -s formatOptions lzw /infile.tif --out /outfile.tif