Teach you how to pick out your baby’s soft hair

-
This baby photo has a flowery background, the picture quality is not very good, and the baby's hair is relatively thin, so the hair part is too blurry. Therefore, it is a bit difficult to use Photoshop to cut out the picture and change the background, which requires some skills.

Original picture

final renderings

1. Let’s take a look at the repair methods. Compare the hair contrast of each channel in the channel, select the blue channel with stronger contrast, and make a copy. And partition processing, after selecting the left side, CTRL+I inverts. In this way, the hair color is unified, with black hair on the left and right.
Use the burn and dodge tools to repair some blurry edges, so that the contrast is a little stronger, and then the levels will be much cleaner.

2. Enlarge the picture, select the absolute range of the character, and fill this part of the channel with black. This way there is an overall selection area. As for the edges of the hair, we use channels.

3. In order to prevent repair damage, copy this channel. In addition, you can also use copied multi-channels to create hair selection areas with different contrasts. Finally, multiple channels are combined together, so that multiple areas of the image can be easily adjusted, which is much better than the overall adjustment of the entire image.

4. It can be seen that the hair on the left and right have different color contrasts, so we need to divide it into sections, select the left side, and use color levels to create contrast. As for the details of the hair, we will do it last. When adjusting contrast, use the selection area in the channel to protect the parts that have been adjusted.

5. For the small group of hair on the left side of the picture, we can use other color channels, copy it and create an ALPHA channel. Only look at the part of hair you need and use the color levels to bring up the selection area. As you can see, the hair on the left side of the picture is white.

6. CTRL-click the channel to load the channel you just created into the selection area. Enter the blue copy channel that has adjusted the hair on the right, and use a black brush to draw the hair on the left as well. In this way, there is hair on both sides.

7. CTRL+D to cancel the selection, CTRL+I to invert the channel, CTRL-click this channel to load it into the selection area, return to the layer panel, copy the background layer, click the mask button, and put the previously loaded Convert the selection area to a mask, create a new layer, fill it with a color, place it underneath, and watch the cutout effect.

8. Enlarge the image, use a very soft brush with very low opacity, and use white and black to draw a light edge of the hair on the mask. This part of the hair is very blurry, so we also draw a blurry transition. If necessary, use a pixel brush to draw some hair strands.

9. You can see that the color of the hair is very messy. Click the layer (note that it is not on the mask) and use white and black to unify the color of the hair. After a long period of "grinding", the hair was pulled out.