Often a product range is shot in a studio against the white background. And then it is changed with image editing. It is done to make the pack shooter portraits more attractive later.
There are many studios where products or portraits are shot. For a proper portrait there should be a three- point lighting which uses the key light which is the main light, fill light which is placed opposite to the key light, back light which is the rim light or hair light and another fourth light which is known as the kicker that is a very small light. Other types of lights are also used to make the portrait look bright and proper focus is on the face. To create a portrait and change its background first a document of any image editing software has to be created which is to be filled with black and subsequently a new blank layer is created. The background is chosen and merged well after which various tools are used and the background is made to look perfect. Lastly the adjustment layer has to be used and the final document has to be saved. The portrait from the original document has to be selected by a Lasso tool and then dragged into the final document. This works with product pack shots also after which image editing is done.