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The Adobe Photoshop CS5 Book for Digital Photographers part 23 pptx

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Give it a try, and I’ll bet you’ll say, “Hey, that’s the old-timey look.” Step Nine: Now, click the OK button at the bottom right to have Photoshop process the image.. When the Open dia

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Step Eight:

The section at the bottom has two tabs:

Color and Curve The Color tab has

Vibrance and Saturation controls (like

Camera Raw’s), so if you need to make

the colors more vibrant, try dragging

the Vibrance slider to the right If you

want to take your image to “Harry Potter

world,” then add in the Saturation slider,

as well Here, we’ll set the Vibrance at 22

and the Saturation at 26 (the only reason

we’re doing something this extreme is

because the image doesn’t have much

color to begin with) If you need to add

more contrast, click on the Curve tab

and create an S-curve Add points to

the curve by clicking along the diagonal

line, then move them by dragging them

up/down We’ll add the S-curve you see

here at the bottom Also, I turned on the

Remove Ghosts checkbox (at the top right)

in case the clouds moved a bit between

shots (more on this later in the chapter)

TIP: Get That “Old-Timey” Look

If you increase the Vibrance and then

decrease the Saturation, it gives your

image that “old-timey look” (there’s

prob-ably a better description, but you know

what I mean) Give it a try, and I’ll bet

you’ll say, “Hey, that’s the old-timey look.”

Step Nine:

Now, click the OK button at the bottom

right to have Photoshop process the

image When it’s done, you’ll see the

HDR image appear in Photoshop (as

seen here) Now, there’s something many

people don’t realize about the

post-pro-duction process of HDR images: there’s

always a second round of processing in

Camera Raw (this isn’t new—we did this

back in CS4 with third-party plug-ins, too!)

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Step 10:

Before we start the post-production

process, you have to save the file as a

TIFF or JPEG (if you want to keep it in

16-bit mode, save it as a TIFF, otherwise,

JPEG is fine) and then close it Then

go under Photoshop’s File menu and

choose Open (PC: Open As) When

the Open dialog appears, click on the

JPEG or TIFF image you just saved, and

from the Format (PC: Open As)

pop-up menu at the bottom of the dialog,

choose Camera Raw (as shown here) to

have the image open in Camera Raw

for processing, and then click Open

Step 11:

When the image opens in Camera Raw,

I usually crank up the Clarity amount

(which brings out lots of little details),

and in this case, we’ll crank it up to

+42 (as shown here) I also increased

the Exposure to +0.35, the Recovery

to 89, the Fill Light to 23, and the

Blacks to 34

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Before

After

Step 12:

Next, we’ll add a dark edge vignette (this

is a very popular look in hyperreal HDR images), so click on the Lens Corrections icon (the fifth icon from the right) at the top of the Panel area, then at the top

of the panel, click on the Manual tab

At the bottom of the panel, in the Lens Vignetting section, drag the Amount slider all the way to the left to darken the edges, and then drag the Midpoint slider to the left to extend the darkening inward from just the corners, so it’s more even and larger all the way around

Step 13:

That’s it (well, that’s it if you were going for the hyperreal look) Now, these settings worked for this particular image, but you could open a different image, and these settings might not work at all, which is why on the next two pages, I’m going to give you a few settings that

I use myself for different HDR images when I want them to have the hyperreal look What I recommend is trying them out, saving them as presets (see the next step), and then when you open an HDR image, at least you’ll have a couple

of starting points that are better than the presets that come with Merge to HDR Pro

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Step 14:

The settings we’ve used so far are the

set-tings I use most of the time with Merge

to HDR Pro, because they seem to work

on almost any image Around the office,

we just call them “Scott 5” (because that’s

the name I gave the preset I saved with

those settings) Here, I put them together

in one place, so you can find them easily

(don’t forget to add the S-curve, though)

Also, once you enter these, I would save

them as a preset (but of course, you

don’t have to call them Scott 5) I always

try these first: Under Edge Glow, set the

Radius at 176 and set the Strength down

to 0.47 Under Tone and Detail, set the

Gamma at 0.76 and the Exposure at 0.30

Push the Detail all the way to 300% Now,

for the next two sliders, I pretty much

use the same settings for every

hyper-real look: I open the shadows fully up

(setting the Shadow slider at 100%) and

clamp the highlights fully down (setting

the Highlight slider at –100%) In the last

section, increase the Vibrance to 22% and

the Saturation to 26%, then click on the

Curve tab and make an S-curve (see Step

Eight) to add contrast Once you’ve put

these settings in, if you like the look (of

course, it depends on the image), go to

the flyout menu to the right of the Preset

pop-up menu, and choose Save Preset

(as shown here) Give this new preset a

name and it will be added to the bottom

of the Preset pop-up menu

Step 15:

This one doesn’t look a whole lot

differ-ent than the previous one, except I’ve

learned that subtle differences between

the Radius and Strength amounts can

make a big difference Set the Radius at

166, and the Strength at 0.39 Leave all

the Tone and Detail settings like they

were in Step 14, but then at the bottom,

crank the Vibrance up to 80%, and set

the Saturation down to 0% Go ahead

and save that one as a preset, too!

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Step 16:

This particular one is a bit punchier, a bit

more over the top, but it’s worth trying

because, on some images, it’s just the

tick-et Set the Radius at 370 and the Strength

at 1.84 Set the Gamma at 0.23, the

Expo-sure at –0.35, and the Detail down to

just 156% Set the Shadow and Highlight

amounts the same as always (Shadow at

100%, Highlight at –100%) Down in the

bottom section, set the Vibrance to 82%

and the Saturation to just 10% Of course,

I always have the curve set to an S-curve to

add more contrast Now save this one as a

preset, too, then I have one more for ya

Step 17:

Our last hyperreal preset just tweaks

things a little bit, but fairly often, that’s

all you need (and don’t forget, you’re

going to do some post-processing after

the fact, and with this one, you’ll

prob-ably be adding lots of contrast and

clarity in Camera Raw after the HDR

processing) Set the Radius at 83 and

the Strength at 0.43 Set the Tone and

Detail settings like this: Gamma at 0.23,

Exposure at 0.80, Detail at 270%, and

Shadow and Highlight both at 100%

(yup, I’m throwin’ ya a curve ball) This

one really pumps up the color, so set

the Vibrance at 76% and the Saturation

at 52% Just remember: you may apply

this preset and it might look terrible,

depending on the image you try it on

(this is why you need all five of these

presets At least one will get you in

the ballpark)

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Step One:

Start by selecting your HDR-bracketed

images in Mini Bridge, and then choose

Merge to HDR Pro, under Photoshop,

from Mini Bridge’s Tools icon’s menu

After a few moments, you’ll see the

Merge to HDR Pro dialog appear (seen

here) with the default settings applied

Step Two:

From the Preset pop-up menu at the top

right of the dialog, chose Photorealistic

(as shown here) This is probably the

only built-in preset that I like (but we’re

only going to use it as a starting place)

Creating Photorealistic

HDR Images

In the previous project, we looked at the very popular hyperreal, surrealistic look, which is definitely a creative, artistic use of HDR, but if you’re looking

to simply expand the dynamic range of what your digital camera can capture, without adding a surrealistic effect to it, you’ll be happy to know that getting that look is even easier (though I recommend going through the previous project first, so you know what all the sliders do, because here I’m just going to give you a recipe for photorealistic HDR images)

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The HDR image using the Photorealistic preset settings

and then adding a few tweaks The original normal exposure image

Step Three:

Now, in the Tone and Detail section, increase the Detail amount to 65%

(as shown here) Then, in the Color tab, increase the Vibrance to 65% and the Saturation to 25% A before/after is shown below

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Step One:

Once you’ve finished creating your

HDR image using Merge to HDR Pro,

and it’s open in Photoshop, start by

pressing Command-J (PC: Ctrl-J) to

duplicate the Background layer Now

go under the Filter menu, under

Other, and choose High Pass (as

shown here)

Step Two:

When the High Pass filter dialog appears,

drag the Radius slider all the way to the

left, so that everything turns solid gray

Now, drag the slider to the right until

you can just start to see the color peek

through the solid gray (as shown here)—

the farther you drag, the more intense

the effect will be (here, as an example,

I dragged 9 pixels, and you can see

a glow appearing around the edges of

the boat) When you’re done, click OK

Although I cover High Pass sharpening in the sharpening chapter, I thought it was important to include it here, as well, because High Pass sharpening has kind of become synonymous with HDR editing (especially with the hyperreal-fantasy HDR effects) High Pass sharpening is sometimes called “extreme sharpening” and that’s

a really good description of what it is Here, I’m going to show you how to apply it, how to control it afterward, and an optional method that I use myself quite a bit

High Pass Sharpening for

HDR Images

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Step Three:

To bring the sharpening into the image,

go to the top of the Layers panel and

change the duplicate layer’s blend mode

from Normal to Hard Light (as shown

here), and you’ll see the full sharpening

If it seems like it’s too much, you can do

one of two things: (1) Lower the opacity

of this duplicate layer Think of this as the

control for the amount of sharpening, so

try lowering the Opacity amount (at the

top of the Layers panel) to 75% (for 75%

of the sharpening), or 50% if that’s still too

much The other method (2) is to leave

the Opacity at 100%, but change the layer

blend mode to Soft Light You still get the

intense sharpening, but it’s just not quite

as intense So, that’s High Pass sharpening,

but there’s another option, and in the next

step, we’ll look at limiting where the

sharp-ening is applied (and keeping some of the

glow around the edges in check)

Step Four:

To limit where the sharpening is applied,

press-and-hold the Option (PC: Alt) key

and click on the Add Layer Mask icon at

the bottom of the Layers panel (shown

circled here) to hide your sharpened layer

Get the Brush tool (B), and make sure

your Foreground color is set to white

Then from the Brush Picker in the Options

Bar, choose a medium-sized, soft-edged

brush and paint over just the parts of the

image you want to be super-sharp (here,

I’ve painted over the boat, but avoided the

water, sky, and sea grass, so just the boat

itself gets that extreme sharpening) Also,

if you pushed the High Pass filter so high

that you saw a glow around the edges, try

to stay away from the edges or you’ll see

the glow If you do see it, just press X to

switch your Foreground color to black

and paint it away

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Step One:

Open the image you want to add a

“faux-HDR” look to, then go under the Image

menu, under Adjustments, and choose

HDR Toning (as shown here) Before we

go on, I just want to reiterate what I said

in the intro above: while the controls in

the HDR Toning dialog look the same

as the Merge to HDR Pro controls, they

seem to be much more sensitive, so you

can’t use the same settings and get the

same effect—you have to back everything

off a bit

Step Two:

When the HDR Toning dialog appears,

the default settings give your image

somewhat of a tone-mapped effect (as

seen here, where the image is more

con-trasty, brighter in the shadow areas,

appears to have some clarity applied,

and the colors are more vivid) This is

what I mean by being more sensitive,

because when you open a bracketed

multi-image HDR photo, with the default

settings, you hardly notice a difference

in tone at all Now, let’s crank things up

and get the faux-HDR look from this one

image Note: If the Toning Curve and

Histo gram section at the bottom of the

dialog is collapsed, just click on the

right-facing arrow to the left of

the section header to expand it

If you didn’t shoot for HDR (meaning you don’t have at least three bracketed images of the same scene), you can still do single-image toning While it doesn’t create the exact same result, it does create a pretty cool effect, and best of all,

it uses the same controls as the regular Merge to HDR Pro dialog does for multi-image HDR processing So, you already pretty much know what to do (except I’ve found the controls are much more sensitive with just one image than they are when applying them to a multi-image, real HDR)

Single-Image

HDR Toning Effect

Ngày đăng: 03/07/2014, 22:21

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