There is no format in the FTP path that cannot be parsed

I have a picture in tiff format, muju.tiff, located in ftp. The path on Linux is /run/user/1000/gvfs/ftp:host=10.8.0.116/temp/muji.tiff. When I use this path to load pictures, the pictures cannot be displayed normally.

Unsupported format：tif、tiff、pcx、mrw、j2k、ico、pnm、psd、cr2、raf、dng、nef、pef、mef、raw、orf、pic、wbmp

  // QString path = "/home/thx/Pictures/muji.tiff";
    QString path = "/run/user/1000/gvfs/ftp:host=10.8.0.116/temp/muji.tiff";
    QImage img(path);
    label->setPixmap(QPixmap::fromImage(img));