Adjusting Hair Color

Hair is made up of large sums of protein called keratin. It defines who we are as people and can even change our mood when properly maintained. Sometimes though, we change the look of our hair to stand out more.
Changing the color of hair can be very tricky because you have to make sure every pixel of the hair is selected and exclude the background from the hair as well. 
Fortunately, in Photoshop we can use a layer mask, brush, spot healing brush, and clone stamp to fix this problem. To begin, we need to open Adobe Photoshop and an image.
In this case, we'll be using an image I downloaded from Pexels and with Pexels you can find high quality images available to you for free.
Now with our image opened, we need to create a new layer and if you went through my first post on recoloring, then this should be very easy.
Creating A Layer
To do this, head on over the layer tab and click create a new layer. You should see a layer named "Layer 1" in your layer window on the bottom right. 
If for some reason your layer window is not there, you can go to the Window tab and click on layers to open it or press F7. Next with our new layer selected, go to the select tab/color range to select what parts of our image we want to change the color of.
Leave select on sampled colors on and leave localized clusters detect clusters unchecked. Also, keep the fuzziness at 70 or 74 to add a nice blend between black and white.
This makes selecting parts our image much easier and from there all have to do is use the eyedropper and add to sample tool to highlight her hair for selection.
Notice how her eyes, eyebrows, and elbows are white as well, but do not worry about it; we will fix this later. For the selection preview I like to keep it on grayscale because helps me see what is being selected and what's not.
 After that's done, we have to create a new adjustment layer to change the color of our selection within our layer by going to layer/new adjustment layer/ hue and saturation. 
We can now change the color of our selection we made in color range and we have also created a layer mask as well.
 In fact, if we hold down our alt key and click on our image in the window to the right; we see the same preview when we opened color range!
Changing Layer Masks Using A Brush
This time however, you'll be able to go in and make any changes you need. We'll use a brush for to get rid of the highlighted white portions surrounding her eyes, eyebrows, elbows, and ear.
 The brush tool used for painting or coloring in any area on our image and once you select you will notice a mini toolbox of features at the top that are associated with the brush tool. 
For now, the only one that is important to us is the second feature with circle icon. In here we can specify size or how big the strokes for our brush should be.
 For me, I just went with 150 pixels to speed up the process and as I got closer to her hair, I would decrease brush size to about 12 pixels. 
As for the other options, we can leave them on default. Then, we have to change the color of our brush to black to match the background color in our image. Within our main toolbox on the left, go the option that has two colored squares.
Foreground and Background Colors
The first square lets us the foreground color, which lets us color over any part of our image and the second square allows to color the area behind our image or the background. 
So within the foreground color, change the color to black and color over all of the areas except for the hair. One thing I like to do is click back and forth between the image and layer mask to see what I'm doing.
 Once her hair is the only thing left white, we can go back to our layers window on the bottom right and click on our hue/saturation layer to change the color of hair.
For this image particular image, I had to do some extra work because not all of her hair was not selected in the way I wanted it. 
Spot Healing Brush and Clone Stamp
One of the tools I used was the spot healing brush, which allows you to recover pixels from other areas of your image to clear up any unwanted portions of the image. 
I used it to color in the areas missed by the color range to make the hair appear more natural than using a brush. The spot healing brush is useful for getting rid of acne, spots, and any other spills. 
Another thing I used was clone stamp, copying pixels from other parts of her hair and using them to color in all the thinnest areas of her hair. 
Again, both of these tools are available in your main toolbox, so I'll let you play around with them for now.
Once I finally had everything selected, I went back to hue and saturation in the layer tab to modify the color of her hair. We will see how all these things tie into each other in the next few posts. 
Thank you for reading.
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