[kirillcool]

"Flowers replaced to red" looks like it also tinted the whole sky red. In general, all the image captions imply that the algorithm is able to identify objects (flowers, ice cream scoop, shirt) and only change that object's color.

[andersource]

> "Flowers replaced to red" looks like it also tinted the whole sky red.

That's true, to me at least it looks like in the original image the sky has a yellow undertone so I think it makes sense

[bluetwo]

Yes, what he is really doing is what's known in photography and video as "color grading". where you narrow or short the hues used in an image.