I'm happy having run into this very practical software, on the web...
My  tools on hand are;   scanned photos of furniture and scanned photos of various upholstery fabric
my aim:   to be able to change the upholstery of the furniture for every different room I'm designing..
The conversion from photo to graphic is excellent, the next step of applying a new outfit is what I could not figure out......Wd. u be able to offer me a simple software to perform these tasks..
thx in advance, brgds,

太长了。把看不懂的地方摘出来或标出来，估计会有人回答你。

谢谢楼上, 已解决
另外, 才知道 brgds 是 Best Regards