*Magic* websites that removes background - HOW do they do it?

[jonathanjohnson100]

I came across this website: www.remove.bg.
It removes backgrounds. OMG. It's like magic.
I threw quite a few images and it gave a SUPER clean cut image with background removed with no dodgy cutting out.

The images that I gave had a beige background on 90% of the image (top part).
The bottom part had floorboard skirting and a lamenate floor which had random patterns.

This is real MAGIC!
Except... magic doesn't exist.
If they can do it on a website, then I know I can get the SAME result using ImageMagick.
+ I'm guessing some clever people have already written many scripts to do the EXACT same with little effort?

Any pointers would be great.

Thanks.

[fmw42]

Actually this is a difficult task. It requires some special code that may include artificial intelligence / deep learning. I have never seen anything like that before that does not require some user interaction. So it must be quite complex. I have spent quite some time experimenting with background removal and am quite impressed. But have no idea how they do that.

[jonathanjohnson100]

oh darn it! grrr!

i was hoping there was some other code to match it out there!

i've just spent 10-15 minutes trying other websites.
this websites beats all other hands down. it's pretty awesome.

but i cant still believe there is a 'magic sauce' that no one else has!

[fmw42]

It is not that no one else knows how. It is just complicated to implement and requires GPU accelerated processing and deep learning tools. Just do a Google Search on "background removal with deep learning". See for example:

https://towardsdatascience.com/backgrou ... f2104b3157
https://news.developer.nvidia.com/this- ... m-a-photo/
https://www.theverge.com/2018/12/19/181 ... -photoshop
https://github.com/eti-p-doray/unet-gan-matting
https://github.com/SaoYan/bgsCNN
https://www.digitaltrends.com/photograp ... emoval-ai/
https://01.org/zh/node/29971
https://www.ntt-review.jp/archive/nttte ... 12fa2.html

[jonathanjohnson100]

I've been reading those links in the past 10-15 minutes
hmmm... seems as though you were correct.
one of the links is about an article on that website.
the first link is really a good read.
i'll try out the python code links you gave.
THANKS!