Summary:
In this tutorial, we will be showing you the last sharpening technique and it is called the High Pass technique. High Pass filter is one of the obscure Photoshop filters that tries to determine the edges in an image. When you blend the High Pass layer with the original unsharpened image, you get a great looking image. Throughout this course we will show you different blend modes and give you tips and tricks to improving the image quality.
If you are unfamiliar with certain areas that are not covered in this tutorial, feel free check out other tutorials on our website. We have many different types of tutorials that can be downloaded (Video, PDF) or viewed online that will train you for free! Once you have the knowledge, feel free to come back and go through this tutorial again.
You will be using a picture of this colored crocodile. If you do not have this image (if you have a black and white image of the crocodile, that will NOT work for this tutorial), please scroll down to the image of “Click Picture To Download Supporting Files” and download the image. Please open the image PE-CRO1 in the Photoshop Program.
There are a lot more sharpening techniques in the Photoshop bag of tricks, but either they are too advanced for a beginner/intermediate Photoshop user or they are hybrids of existing sharpening techniques that we already discussed. Between the Sharpen, Sharpen Edges, Sharpen More, Smart Sharpen, Unsharp Mask, and today’s tutorial on the High Pass Sharpening, you will be able to sharpen most blurred images.
So what is a High Pass filter? The main goal of this filter is to determine the edges of an object. The first step for this tutorial is you MUST duplicate the background layer. If you do not do this step, you will ruin your original image (do not worry, you can always undo if you forget this step).
A).
If you are satisfied with the changes, Left click the “OK” button. If
you want to disregard the changes, than Left click the “Cancel” button. | |
B).
Make sure the “Preview” button has a check in it. This way you will see
the changes in the actual image as you adjust the radius setting. | |
C). Left click the “-“ to zoom out of the preview. Left click the “+” button to zoom into the preview. |
A).
Move the mouse pointer to the preview box. Hold down the Left mouse
button and drag the mouse. Release the Left mouse button when you are
satisfied with the new position. Photoshop Tip – To
jump to a specific location of the image, Left click the actual image.
You will notice that the preview box will position to that specific
spot. | |
B).
The High Pass filter tries to determine the edges. Anything gray will
NOT be sharpened. Once it determines the edges, the Radius setting sets
how far beyond that location it will try to sharpen. Move the mouse
pointer to the up arrow for the slider bar and HOLD down the Left mouse
button and drag the slider left or right. | |
C).
If you know the numeric value for the Radius, Left click the text box
and enter the value. For this tutorial, set the radius at 4.2. The
common radius is from 1.0 to 5.0. |
Back in the Smudge, Sharpen, Blur Tools tutorial, we explained that we will be explaining modes in the future. Modes are blending modes. What is a blending mode? When you have more than 1 layer, you can add a blending mode. It tells Photoshop what type of information should bleed through from the layer below.
Here is the true magic for the High Pass Filter.
A).
In the Layers palette, you will see a drop down box above the word
“Lock”. Left click this drop down box to display all the blending modes. | |
B).
For this tutorial, Left click the Overlay blending mode. Other
sharpening blending modes are Soft Light, Hard Light, Vivid Light, and
Linear Light. **Please note, there will be more blending modes above this section. |
Here is a quick comparison on the blending modes.
Sometimes after you used the High Pass Filter, you realize that the sharpness is to strong. Instead of starting over, you can just change the opacity on the layer. By changing the opacity, it will reduce the sharpness of that blending mode.
We have given you many tips and tricks in the last few tutorials on sharpening. Here are a few more new tips to make your image look awesome.
In the last few tutorials, we showed you all of the beginner/intermediate sharpening techniques. In this tutorial, we showed you how to sharpen your image with the High Pass filter. We also exposed you to a few blending modes. We will be having a full tutorial on all blending modes shortly.
A). Sharpen. | |
B). Miscellaneous. | |
C). Other. | |
D). Correction. |
A). Duplicate the background layer and hide the background layer and create a mask in between the layers. | |
B). Duplicate the background layer and select the top layer. | |
C). Change the blending mode type to “Overlay”. | |
D). Create a Layer Mask and correct the image. |
A). It usually makes the sharpening stronger. | |
B). It usually makes the sharpening weaker. | |
C). It creates a beam of light from a specific angle, such as from the sky. | |
D). It usually does nothing to sharpening. |
A). Lighten, Overlay, Hard Light. | |
B). Overlay, Hard Light, Normal. | |
C). Soft Light, Lighter Color, Overlay. | |
D). Soft Light, Hard Light, Overlay. |
High Pass Filter?
A). Opacity. | |
B). Blend Reduction. | |
C). Lighten Blend. | |
D). Blend Correction. |
A). Start with lower settings and work your up and find the perfect setting. | |
B).
Increase the settings a little bit over what you feel is right and then
use the option from #5 question and decrease the value. | |
C). That you never start with a duplicated layer. | |
D). That the blend mode MUST be changed before you use the High Pass Filter. |
A). It means those areas will be sharpened. | |
B). It means that the image in those areas will automatically be set to the correct blend mode | |
C). It means those area will not be sharpened. | |
D).
By default it shows gray, but we recommended that you turn on the
“Preview” option to view the changes in color, so you can see High Pass
Filter as color. |
A). 1.0 to 8.0. | |
B). 2.0 to 20.0. | |
C). 1.0 to 50.0. | |
D). 1.0 to 5.0. |
A). Left click the actual image area (not preview) and the preview will jump to that specific spot. | |
B).
The only way to jump to that spot is by moving the mouse pointer to the
preview box and holding down the Left mouse button and dragging it to
that spot. Release the Left mouse button to make the jump. | |
C). Left click the “Goto” button and enter the image coordinates that you want to jump to in the preview dialog box. | |
D). Use the slider bars to adjust the position to jump to a specific spot quickly. |
A). It tries to determine the engraved spots of the image. | |
B). It tries to increase the brightness of the image. | |
C). It tries to locate the edges. | |
D). It tries to increase the density and the weakness of the pixel size. |
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