Efecto Estrellado
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Transcript of Efecto Estrellado
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Star Diffusion
Learn how to add a unique dreamy effect to your photos with this Star Diffusion Photoshop
tutorial. This Photoshop effect creates diffusion in the shape of a four point star and is an
ideal effect for portraits or any photos with a strong background blur.
Preview of Final Results
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Star Diffusion Photoshop Tutorial
Step 1: Open a photo into Photoshop
Begin by opening a photo into Photoshop. To do this, choose File>
Open, browse for the file, and click OK.
Step 2: Create a duplicate of the layer
Press Ctrl+J or choose Layer> Duplicate Layer to create a duplicate of
the Background layer. You should now have a new layer. Double-click
on the text of this layer and you will be able to edit the layer name.
Name this layer Star Diffusion.
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Step 3: Add a layer mask
Add a layer mask to the Star Diffusion layer by clicking on the Add Layer
Mask button in the Layers pallet or by choosing Layer> Layer Mask>Reveal All. You should now have a white thumbnail beside the layer
mask.
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Step 4: Create a copy of the image as a layermask
After you change the layer name, the layer mask will be deselected.Before we continue, click on the layer mask thumbnail in the Layer pallet
to activate it. It should have a white border around the thumbnail
indicating that it has been selected. With the layer mask selected,
choose Image> Apply Image. In the Apply Image tool, simply click OK to
use the default settings. The layer mask should now have a copy of the
image.
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Step 5: Change the blending mode to Screen
In the Layers pallet, change the blending mode of the Star Diffusion
layer to Screen.
Step 6: Duplicate the Star Diffusion layer and
group the two layers
Make sure that the Star Diffusion layer is selected then press Ctrl+G or
choose Layer> Group Layers. The layer group put the layer into a group
to keep the layers organized. Double-click on the group name and
rename this group to Star Diffusion. Now, select back the Star Diffusion
layer and press Ctrl+J or choose Layer> Duplicate Layer to duplicate the
layer.
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Step 7: Apply a diagonal motion blur
Select any one of the two Star Diffusion layer and choose Filter> Blur>
Motion Blur. Set the Angle to -45º and adjust the distance according tothe length of the streaks that you want. If you're working on a high
resolution image and the distance setting does not let you create streaks
long enough, use the highest setting, click OK, and then press Ctrl+F to
repeat the filter until you get the length you desire.
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Step 8: Apply the opposite diagonal motion blur tothe other Star Diffusion layer
Now select the other Star Diffusion layer that you did not apply the
motion blur effect to. Choose Filter> Blur> Motion Blur and use the same
distance settings as before but use the opposite angle setting by simply
removing the - from the angle (ex. 45º instead of -45º). If you're working
on a high resolution image and you had to repeat the filter in the
previous step to get long streaks, don't forget to repeat the filter again so
that this layer has the same streak length as the other Star Diffusion
layer.
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Step 9: Sharpen the Star Diffusion Layers
We now have a star diffusion effect, but it seems quite blurry and it's not
every noticeable. To make it more visible, we'll use the Unsharp Mask
filter to sharpen the layers. First, select any one of the two Star Diffusion
layer and choose Filter> Sharpen> Unsharp Mask. In the Unsharp Mask
tool, adjust the amount and radius settings to make the effect more
visible.
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When done, click OK, and apply the filter again on the other Star
Diffusion layer by selecting the layer and pressing Ctrl+F or choosing
Filter> Unsharp Mask.
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Step 10: Mask the effect out of the foreground
This star diffusion Photoshop effect can interfere with the subject in the
photo by covering it. To correct this, we'll simply mask out the effect from
the important areas in the photo. Begin by selecting the group in theLayers pallet and then clicking on the Add Layer Mask button in the
Layers pallet or choosing Layer> Add Layer Mask> Reveal All. Once you
have a layer mask, select the eraser tool and erase the areas that you
would like to hide the diffusion effect from. Start with a soft and large
round brush with a 50% opacity. The opacity of the brush can be
changed from the option bar located near the top of the Photoshop
window and the brush settings can be accessed by right-clickinganywhere in the document window.
Step 11: Alter the color of the Star Diffusion effect(optional)
If you want to be more creative, you can alter the color of the star
diffusion effect. For example, in the image below, the color of the two
layers were changed to make the background bokeh look like it came
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from a city instead of a park. To alter the color of the effect, select the
Star Diffusion layer and adjust the hue with the Hue/Saturation tool (Ctrl
+U or Image> Adjustments> Hue/Saturation). Then, select the other Star
Diffusion layer and use the Hue/Saturation tool again to change the
color. You may also checkmark the Colorize option in the Hue/Saturation
tool if you want to use a specific color for the entire layer.
Final Results
Original image
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Star Diffusion Photoshop tutorial
Star Diffusion (Different Variation)
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