How to replace a background - not cutting out

[Ofnuts]

(06-27-2018, 10:15 PM)enginestar Wrote: Say I take pictures of an object on a 1 color background...
Is it possible to just get rid of that color?
Say cream or green or black?

Maybe roughly isolate the object and then apply a tool to turn the background to be white?

Thanks.

Yes, but it is better/easier if the color is really uniform (unless you have a good lighting you'll have level differences), and/or different from anything else in the object (ie, green-screen) so that you can make selections based on the value of specific color channels. More attention/technique in the shot can save hours of editing.

If you want a white background anyway, the pro technique is to blow out the background (often made of white vinyl) with an additional flash behind the subject. If you are shooting small objects, invest in a shooting tent (rather cheap, but you can also build one yourself).