Photoshop delights novice users with a huge number of creative opportunities that open up, and many dream of learning how to create beautiful and unusual collages, work in the field of photomontage, and, of course, change backgrounds in their photos and those of their friends. At the same time, a realistic change of the background and careful cutting of an object from the background is a serious problem for beginners, and knowledge of the technology of extracting the background from a photograph will help you to solve it, which creates a realistic and reliable effect that you will get as a result of your work.
Instructions
Step 1
Open in Photoshop the photo with the person you want to place on the new background, as well as the background image itself.
Step 2
Duplicate the background layer and remove visibility from the original layer by clicking the eye icon next to the word thumbnail. Cut out the person from the background as accurately as possible with a quick layer mask.
Step 3
Create a new layer and copy the contents of the green channel of the photo into it (apply image). Depending on which tones prevail in the photo and what is the white balance in it, check which channel the image will have the most contrast on (Channels panel).
Step 4
Once you have identified the desired channel, delete all other channels by making the image gray. To do this, open the Image menu and select Grayscale in the modes menu. Apply a channel to the future layer mask, setting the layer blending mode to Multiply.
Step 5
Now take a black brush and paint over the face of the person in the photo to preserve the skin color and naturalness of the eyes after applying the mask. Make the mask layer invisible, and then create a mask for the duplicate background layer.
Step 6
Copy the above mask there by inverting it. Set the blending mode to Normal. All you have to do is exit mask mode and invert the image so that you can remove the unnecessary background, leaving the cut out human shape. Copy it and paste it on the new background where you want it.
Step 7
By pasting the shape on a new background, you may encounter an overly dramatic difference in the white balance - in this case, edit the levels and saturation of the colors in Image> Adjustments> Hue / Saturation.
