How to deal with white background quickly with ps

Have any friends ever come across a photo taken on a still life platform with a SLR camera, and the background color is gray, which makes them feel very uncomfortable? Many online stores also require that when the baby is put on the shelves, the main picture requires a white background and you need to sign up for an activity. It is still necessary to make a product description or a white background diagram, which is often needed in daily life and work. So how to use ps to quickly process pictures with white background? Let me talk about the solution for the reference of friends in need:

This operation takes Dell computer as an example, and the specific steps are as follows:

way

Take a photo on a blank sheet of paper. Look, the background color is gray (as shown below):

Open this picture with PS software (as shown below):

Press the shortcut key "Ctrl+M" to display the curve tool directly. Of course, you can also click the "adjustment" item in the "image" in the upper bar, and then click the curve in the "adjustment" item (as shown in the following figure):

Then adjust the curve to the color of the bottom plate, move the curve toolbox to one side, adjust and observe until you are satisfied, and then click OK (as shown below):

In this way, the picture with a white background is ready. Compared with the above picture, the effect is obvious (as shown below):