Ultrawide Sharpening

Photoshop is full of surprises. Here's an effect that started off with a blurred, inverted Color Dodge layer. Usually, this is a good base for a line drawing—the degree of blur controls the lines' strength. But instead of using blur, I wanted to see the effect of applying the Unsharp Mask filter over a wide area—that is, pushing up its radius slider. It took no time to repeat the process with Ctrl/Cmd-F and discover that evenly toned areas could be bleached and the details could be fringed with the original image colors. It's such an easy recipe and can be applied to all sorts of pictures.

1 In the Layers palette, duplicate the original image layer by dragging the background layer onto the "Create a new layer" icon, or use Ctrl/Cmd-J

2 Using the pull-down blending mode menu in the Layers palette or the shortcut Alt/Opt-Shift-D, change the new layer's blending mode to Color Dodge, and name it "Color Dodge."

3 Invert the Color Dodge layer with Ctrl/Cmd-I. The image should now appear completely white

4 In the Layers palette, use Ctrl/Cmd-J to make two copies of the original image layer, and drag them to the top of the layer stack Name one "Color" and one "Color Burn," and set their blending modes accordingly Drag the "Color Burn" layer to the top of the stack

5 Activate the inverted Color Dodge layer and sharpen it Use Filter

> Sharpen > Unsharp Mask Set the amount at 200 or more and push up the radius to at least 50 Leave the threshold value low, such as below 5 Click OK Repeat the filter for a more intense effect

6 For other interesting results, experiment with changing the opacity of the various blend layers

Fringed edges

With this image, the appearance of fringing emphasizes the already wintry feel of this image

In this example, although the tree is bleached out, the branches are surrounded by blues from the original image

Color Sum

Color Sum

Color

Color Dodge + blur + USM 300

Background

Burned out

I just applied the Unsharp Mask once to this high-contrast portrait of a girl in the sun

Xj h

I Layers " Channels H (J Color Dodge v Opacity: 100% * 0

Color Burn

Color

Color Dodge + blur + USM 300

Background

O Color Burn

B

100

c

100

0 A Color

B

100

c

100

0 Color Dodge

B

100

c

100

0 Color Burn

B

100

c

100

0 A Color

B

100

c

100

0 Color Dodge

B

100

c

In some cases, where a source image contains a lot of detail, you have to be judicious with applying Unsharp Mask to retain it

Color line drawing

Using an Unsharp Mask with a radius of roo was enough to spice up this picture but retained the seagull and other important details in the bridge

Graphic patterns

By the time I had applied the Unsharp Mask filter three times to this image of Brighton Pavilion, England, fascinating patterns were appearing in the plain blue sky of this image

This picture contains lots of detail in the trees This disappeared unless the Unsharp Mask radius was set to a relatively low value.

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This picture contains lots of detail in the trees This disappeared unless the Unsharp Mask radius was set to a relatively low value.

Layers :-aths

Color Sum

Color

Background'

Color Dodge + blur + USM 100

Layers I'ath

Color Dodge V Opacity: j 1011% > Q

J Color dodge + blur - USM 100

Background

at_jf

I Layers ""Ufainels 1 Paths ,

(J Color Dodge ""^Opacity: | 1 QQ-y, > |Q

I Layers ""Ufainels 1 Paths ,

(J Color Dodge ""^Opacity: | 1 QQ-y, > |Q

Color Burn

19

Color

1

Color Dodge + hlur + USM 500 k 3

Background 3

9. El €>. -i a if

O Color Burn

B

100

c

100

0

A

Color Burn

B

100

c

100

0

A

Color Burn

B

100

c

100

© A Color

B

100

c

100

0

A

Color

B

100

c

100

0

A

Color

B

100

c

100

© Color Dodge

B

100

c

100

0

A

Color Dodge

B

100

c

100

0

A

Color Dodge

B

100

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100

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