Airbrushing - Natural Skin

8/9/2019 Airbrushing - Natural Skin

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Airbrushing - Natural Smooth Skin Photoshop Tutorial

Step 1

First, go to the File menu and select Open to open a photo you would like to edit. Because we will beworking with fine details, it is important that the image is a high resolution so that the details of the skincan be seen. The image I used is a high resolution 10 megapixel image with plenty of skin detail.

Step 2

In the next steps, we will be duplicating the layer twice and applying two filters to each of the new layers.Because the image I am working with is a large 31MB photo, processing the filters will be CPU intensiveand slow. Before I continue to duplicate the layer, I'm going to use the Lasso tool to draw a selection of

the skin and duplicate only that area. This will reduce the amount of pixels to work with and reduce theload on my computer. You don't have to do this if you don't need to. It may be helpful if you don't have afast computer with lots of RAM or if your image isn't really large.


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Step 3

Now, press Ctrl+J or open Layer menu and select Duplicate to duplicate the layer. Do this once more sothat you have two layers. Now, rename the top layer to "High Pass" and the middle layer to "Low Pass".As you may have guessed, on the High Pass layer, we'll be applying a high pass filter and on the LowPass layer, we'll be applying a low pass filter.

Step 4

Lets work on the Low Pass layer first. In the Layers palette, click on the eye beside the High Pass layer tohide the layer and select the Low Pass layer that we will be working on.


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Step 5Instead of applying a low pass filter, also known as the gaussian blur filter, we'll be using the Surface Blurfilter instead. Select the Filter> Blur menu and choose Surface Blur. The surface blur filter blurs the imagebut preserves the edges. It is great for smoothing skin without losing the edges. The Surface Blurprovides two options:

Radius:

This setting specifies the size or strength of the blur. Use a higher setting for larger images.

"The Radius option specifies the size of the area sampled for the blur."

- Adobe Help Center

Threshold:

This setting allows you to define the area to blur."The Threshold option controls how much the tonal values of neighboring pixels must diverge from

the center pixel value before being part of the blur. Pixels with tonal value differences less than the

Threshold value are excluded from the blur."

- Adobe Help Center

First, set the radius and threshold so that the image becomes blurry but still recognizable. Then, lower theThreshold and stop just when the edges become sharp. Now adjust the Radius so that the skin is smooth.


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Step 6

We're done with the Low Pass layer. Now we'll work on the High Pass layer that'll restore the tiny detailssuch as the bumps and pores. Select the layer, click on the eye beside the High Pass layer, and changethe layer blending mode to Linear Light.

The tiny bumps of the skin is most visible on the neutral tones of the skin and least visible on the darktones of the skin. To simulate this natural effect, we'll add a layer mask that will reduce the visibility of thebumps on the darker tones of the image. Add a layer mask by clicking the button or by going to theLayer> Layer Mask menu and selecting Reveal All.


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Step 7

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Step 10

Expand the Filter> Other menu and select the High Pass filter. In the High Pass filter, adjust the Radius insmall increments until the skin looks natural.

Tip: Click on the Radius field and press the up and down button to quickly increase or decrease theeffect.

"High Pass retains edge details in the specified radius where sharp color transitions occur andsuppresses the rest of the image. (A radius of 0.1 pixel keeps only edge pixels.) The filter removes low-

frequency detail in an image and has an effect opposite to that of the Gaussian Blur filter."

- Adobe Help Center


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Step 11

Now we'll go back and tweak the settings of the layer mask. In the layers palette, click on the thumbnail ofthe layer mask to activate it. Then, go to the Image> Adjustments menu and select Brightness/Contrast.In the Brightness/Contrast tool, increase the contrast and adjust the brightness so that the bumps on the

skin is less visible on the dark areas and more visible on the bright areas.


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Step 12

We're done smoothing the skin, but now the whole image is smooth. We need to use a layer mask toerase the effect from the areas that are not the skin. Select the top two layers and press Ctrl+G or go tothe Layers menu and select Group Layers to group the layers. Then, add a layer mask by going into theLayers> Layer Mask menu and selecting Hide All.


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Step 13

You should now see back the image the way it originally was without the smooth skin effect. We will bepainting the layer mask over the skin. But because this effect is subtle, it may be difficult to see where wehave painted over. So before we paint the layer mask, add a new layer above the High Pass layer and fillit with the color red. Then, change the opacity of the red layer to 50%.

Step 14

Select back the Group layer mask by clicking on the black thumbnail in the layers palette. Select thebrush tool and paint over the skin to make the smooth skin effect visible over those areas that you paint.To change the setting of the brush, right mouse click anywhere and the Brush settings will appear. Startwith large diameter and a hardness about 50. Then, fill in the tiny spots with a smaller brush. You don'thave to be too precise with this step. Minor flaws will not be noticeable.

Tip: To quickly change the brush size, press the [ key to decrease the brush size and the ] key to increasethe brush size.


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Step 15

Delete the red fill layer when you're done.


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Final Results

Rollover the images to see the before and after effect. It may take awhile for the images to load.


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Airbrushing - Natural Skin

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