Use the Surface Blur Filter
o o •
o o
Originalimage
Select the Layers panel. Select the layer you want to adjust. To create a smart object, click the Filter menu, and then click Convert for Smart Filters. Click the Filter menu, point to Blur, and then click Surface Blur . Drag the Radius slider left or right to decrease or increase the amount of blur applied to the image.
El Radius:
iOOlC
IB
E:J
Pixels
~
levels
6 Threshold:
Drag the Threshold slider left or right to decrease or increase the acceptance of the shift in brightness of the image information (the edges). Click OK.
Resultsof SurfaceBlur
Use the Shape Blur Filter
o o
o •
o
Originalimage
Select the Layers panel. Select the layer you want to adjust. To create a smart object, click the Filter menu, and then click Convert for Smart Filters.
r!1Prevlew
Click the Filter menu, point to Blur, and then click Shape Blur .
Shape:
Select a shape (called a kernel) from the available options.
Radius:
~PI)(eIS
Drag the Radius slider left or right to decrease or increase the amount of blur applied to the image. Click OK.
Resultsof ShapeBlur
Chapter 7
Working with Adjustment Layers, Filters, and Tools
173
Using the Gaussian Blur and Oespeckle Filters
You can also apply the Gaussian Blur filter that blurs an image or a selection by a controllable amount. While not strictly a restoration tool, the Gaussian Blur filter can be used to add a sense of depth to the image. For example, you could select and blur the background of an image while leaving the foreground in focus. The outcome of the filter is to create a hazy, out-of-focus effect on the image or selection. Another filter, the Despeckle filter, detects the edges in an image and blurs the entire image except those edges. Of course, there are no real edges in a Photoshop document-the Despeckle filter works along areas where there is a significant shift in the brightness of the pixels. Since a shift in brightness usually signifies an edge, the Despeckle filter performs a very accurate blurring of the image while preserving detail.
Use the Gaussian Blur Filter
o o •
o
Select the Layers panel. OK
Select the layer you want to adjust. To create a smart object, click the Filter menu, and then click Convert for Smart Filters. Click the Filter menu, point to Blur, and then click Gaussian Blur. Select the Preview check box to view the results.
•
Drag the Radius slid er or enter a pixel value to increase or decrease the amount of Gaussian blur applied to the image.
•
Click OK.
Use the Oespeckle Filter
o o •
Select the Layers panel. Select the layer you want to change. To create a smart object, click the Filter menu, and then click Convert for Smart Filters. Click the Filter menu, point to Noise, and then click Despeckle. Photoshop applies the Despeckle filter to the image.
174
Cancel
Chapter 7
Radius:
[j.s
I pixels
Using the Gaussian Blur and Oespeckle Filters
You can also apply the Gaussian Blur filter that blurs an image or a selection by a controllable amount. While not strictly a restoration tool, the Gaussian Blur filter can be used to add a sense of depth to the image. For example, you could select and blur the background of an image while leaving the foreground in focus. The outcome of the filter is to create a hazy, out-of-focus effect on the image or selection. Another filter, the Despeckle filter, detects the edges in an image and blurs the entire image except those edges. Of course, there are no real edges in a Photoshop document-the Despeckle filter works along areas where there is a significant shift in the brightness of the pixels. Since a shift in brightness usually signifies an edge, the Despeckle filter performs a very accurate blurring of the image while preserving detail.
Use the Gaussian Blur Filter
o •
Gaussian Blur
Select the Layers panel.
OK
Select the layer you want to adjust. To create a smart object, click the Filter menu, and then click Convert for Smart Filters.
Cancel
Click the Filter menu, point to Blur, and then click Gaussian Blur . •
o
Select the Preview check box to view the results. Drag the Radius slider or enter a pixel value to increase or decrease the amount of Gaussian blur applied to the image.
Radius:
[is
]
pixels
Click OK.
Use the Oespeckle Filter
o
o
Select the Layers panel. Select the layer you want to change. To create a smart object, click the Filter menu, and then click Convert for Smart Filters. Click the Filter menu, point to Noise, and then click Despeckle. Photoshop applies the Despeckle filter to the image.
174
Chapter 7
a
t>.D !U
Using the Unsharp Mask Filter
The Unsharp Mask filter creates a visually sharper image by locating pixels that differ in value from surrounding pixels. When the filter is applied to the image, the bordering pixels specified by the threshold option get lighter and the darker pixels get darker. It's important to understand that the Unsharp Mask does not actually sharpen the image; it only attempts to create the illusion of sharpness. Be careful; an over-application of this filter creates harsh images with ragged edges and shadows. Also, the effects of the Unsharp Mask filter appear more severe when viewed with the low resolution of a computer than when the document is output to a printer.
Use the Unsharp Mask Filter
•
Select the Layers panel. Select the layer you want to change. To create a smart object, click the Filter menu, and then click Convert for Smart Filters. Click the Filter menu, point to Sharpen, and then click Unsharp Mask.
•
Select from the following options:
•
Preview. Select the option to view changes to the image directly in the active document window.
10010
Amounl:~"
6 Radius: ~
Threshold:
c=J
Pi.els
levels
6
Drag the slider or • Amount. enter a value to determine how much to increase the contrast of pixels.
•
Radius. Drag the slider or enter a value to determine the number of pixels surrounding the edge pixels that affect the sharpening.
•
Threshold. Drag the slider or enter a value to determine how different the sharpened pixels must be from the surrounding area before they are considered edge pixels and sharpened by the filter .
•
Click OK. TheUnsharpMaskfilter applied to the image. Chapter 7
Working with Adjustment Layers, Filters, and Tools
175
Using the Shake Reduction Filter
The Shake Reduction filter (New!) analyzes and sharpens an out-offocus image due to camera motion. Sometimes when you take a photo, a slight movement of the camera can cause the image to blur. This is typically caused by a slow shutter speed or a long focal length. The image may be in focus, however, it's just a blurry. If this is the case, you can fix the problem by analyzing the image with the Shake Reduction filter, which automatically tries to determine a blur trace region of the image that needs help. You can move and adjust the specified area as well as manually add more regions to apply the Shake Reduction filter.
Use the Shake Reduction Filter
o
Original image
Select the Layers panel.
•
Select the layer you want to change. To create a smart object, click the Filter menu, and then click Convert for Smart Filters.
•
Click the Filter menu, point to Sharpen, and then click Shake Reduction. The filter automatically tries to find a blur trace problem region.
•
To move the blur trace region, point to the center gray circle, and then drag to another position.
•..
4) To resize the blur trace region, drag a white square resize handles.
.
·WT'~'''''~' •••• T•.••• _.
•
•
o o 176
-"""..
To add a suggested blur trace region, click the Add Suggested Blur Trace button. If no region exists, click OK.
----
r
Add Manually. Click the Blur Estimation Tool button, and then drag a blur trace region.
To select a blur trace region, click the center gray circle in the Main preview or the thumbnail. To delete a blur trace, select the blur trace region, and then click the Delete Blur Trace button. To show or hide the bounding box for blur trace regions, select or clear the Show Blur Estimation Regions check box. Chapter 7
iiliJ __-
;
_"'I'll
.
Mi'la '-'"_
__
I
-- Si
-1 •••
-.;.;,.--"
--
lO.O. 10.0
III
!
J'
Cl) To activate or deactivate a blur trace, select or clear the check box under the thumbnail. •
-s--..
_.
lOO
~~_
•
Blur Trace Bounds. Drag the slider to specify the size of the blur trace boundary.
•
Source Noise. Specify the amount of noise to match the image.
•
Smoothing. Drag the slider to specify smooth sharpening; lower is more sharpening detail with more noise, while higher is less sharpening detail with less noise.
• Artifact Suppression. Drag the slider to reduce artifacts from sharpening.
r
~:::=. ~-"
Select from the following Blur Trace Settings options:
..Ei!
-
,
" '11
_
Clickto closethe preview
G To preview image details in the -----'
Details area, click a Zoom icon. •
•
Undock Detail. Click to display Detail preview in the Mail preview. Click the Close button to close the preview.
I
•••• ,.,-_.
"""
Lock Detail. Click to lock the detail in place.
g_----l-A W'
T_.~
. -...•.•..•. ~.
r-' ••
...
G) Select the Preview check box or press P to view the results in the Main preview.
•
+.,
*
Click OK.
Did You Know? You can show the blur trace of the camera movement. In the Advanced area of the Shake Reduction filter, click the thumbnail (New!), and then click the ExpandBlur Trace icon. A mask of the blur trace movement appears showing how your hand was moving. Click again to exit.
Clickto updatethe preview
Chapter 7
UndockedDetailpreview
Working with Adjustment Layers, Filters, and Tools
177
Using the Smart Sharpen Filter
Use the Smart Sharpen Filter
o •
o
o
The Smart Sharpen filter sharpens the details (pixels) of an out-of-focus image without increasing the related noise (New!). You can use the filter in two ways, either the CC(New!) or CS6 (legacy with more noise) method. The filter works in much the same way as the Unsharp Mask filter. The major difference is the ability of Smart Sharpen to remove previously applied Gaussian, Lens, and Motion Blur filters. The problem is that Unsharp Mask will attempt to sharpen what it assumes to be an out-of-focus image. Unfortunately, an image taken with an out-of-focus lens, and a Lens blur are two different things, and that's where the Smart Sharpen filter comes to the rescue.
Original image
Select the Layers panel. Select the layer you want to change. To create a smart object, click the Filter menu, and then click Convert for Smart Filters. Click the Filter menu, point to Sharpen, and then click Smart Sharpen. Select the Preview check box to view the results.
Click and hold the image preview to display the original results (New!).
TIMESAVER
o
o
To use CS6 smart sharpen settings, click the Settings icon (New!), and then select an option: •
Use Legacy. Select to use the CS6 smart sharpen method.
•
More Accurate. Select for a more accurate (slower) sharpening effect.
o
;!
Click the Preset list arrow, and then select a user-defined preset.
Radius:
••
Select from the following Sharpen options:
Reduce
Noise:
Remove:
• Amount. Drag the slider to determine the amount of sharpness applied to the image. •
178
Radius. Drag the slider to determine the width of the sharpening effect.
Chapter 7
110-
""!"!-----
§:]" E]px
~----
~"
-"'6~--
Amount:
I Lens Blur
"I()I ., l~_ J
Shadows I Highlights Cancel
OK
j
•
Smart Sharpen
Reduce Noise. Drag the slider to determine the percentage of noise to allow (New!).
•
Remove. Click the list arrow and then select what type of blur effect you are removing from the image.
•
o
-6----
Radius:
T Sh~dows
Radius: (.)~-----
Fade Amount. Drag the slid er to determine the amount of shadow correction applied to the image.
Highlights Fade Amount:
Blur
:In
--"l'!6~-
Tonal Width:
Select from the following Shadow options:
~px
....,.6~---§:::J"
Fad•••• moun<:
Click the Expand icon as needed to display the options for Shadows and Highlights.
§:J"
"'6----- ~"
Reduce Nctse:
Angle. Enter the angle of the Motion Blur filter to remove.
•
:1
-""6~--
"'mount
Remove: [ lens
•
o
Preview Preset: ( Custom
§':::]"
Dpx
~d-----D"
Tonal Wtdth:
--~6~EJ" UPl(
Radius: (.)~-----
CU\ctl
B
• Tonal Width. Drag the slider to set the width of the tonal values in the image shadows. •
Radius. Drag the slider to choose the scale size for the shadows.
G Select from the following
ImageusingSmartSharpen
Highlight
options:
•
•
Fade Amount. Drag the slider to determine the amount of highlight correction applied to the image.
•
Tonal Width. Drag the slider to set the width of the tonal values in the image highlights.
•
Radius. Drag the slider to choose the scale size for the highlights .
To save a copy of the current Smart Sharpen settings, click the Preset list arrow, and then click Save Preset. • To delete the active saved Smart Sharpen settings, click the Preset list arrow, and then click Delete Preset.
G Click OK. Chapter 7
Working with Adjustment Layers, Filters, and Tools
179
Using Sharpen, Blur, and Smudge Tools
Use the Sharpen, Blur, or Smudge Tools
o
If you want to sharpen or blur parts of an image, you can use the Sharpen, Blur, or Smudge tools. These tools are grouped together on the toolbox. The Sharpen tool increases contrast along edges to increase sharpness; the more you use the tool, the greater the sharpening effect. The Blur tool softens hard edges or reduces detail; the more you use the tool, the greater the blur effect. The Smudge tool creates a finger drag through wet paint effect.
Original image
Select the Sharpen, Blur, or Smudge tool on the tool box.
•
Blur. Softens hard edges or reduces detail.
•
e
•
Sharpen. Increases contrast.
•
Smudge. Pushes a calor in the drag direction to create a smudge effect.
Select a brush tip. Select brush options on the Options bar:
•
•
Mode. Click the list arrow, and then select a mode: Normal, Darken, Lighten, Hue, Saturation, Calor or Luminosity. Strength. Specify a percentage value.
•
Sample All Layers. Select to modify pixels from all visible layers.
•
Protect Detail (Sharpen tool). Select to minimize pixelization while maintaining details.
•
o 180
Finger Painting (Smudge tool). Select to use the background calor as the smudge. Deselect to use the calor under the pointer.
Drag over the part of the image you want to change.
Chapter 7
Image using Sharpen tool
Using the Clone Stamp Tool
One of Photoshop's most powerful features is its ability to retouch a photographic image. When you want to manipulate an image, you can apply the Clone Stamp tool. The Clone Stamp tool allows you to sample the image, and then apply that sample somewhere else on the same image, or on another open document. When you use the Clone Stamp tool, by selecting Aligned in the Options bar, you can reuse the most current sampling point no matter how many times you start and stop painting. When Aligned is deselected, you'll reuse the same sampled pixels each time you paint. For example, you could use the Clone Stamp tool to repair damage to an image, remove a tree, or even add someone to or remove them from an image. If you want to take multiple samples, the Clone Source panel allows you to set up to five different sample sources for the Clone Stamp or the Healing Brush tools. Select Show Overlay and the Clipped option to see the clone source inside your brush cursor as you paint.
Use the Clone Stamp Tool
o •
e
•
•
o o
Select the Clone Stamp tool on the toolbox. Select a brush tip, and then select brush options, such as blending mode, opacity, and flow, on the Options bar. Select the Aligned check box on the Options bar to sample pixels continuously without losing the current sampling point. Clear the check box to continue using pixels from the initial sampling point each time you stop and resume painting. Click the Sample list arrow on the Options bar, and then select the layer option you want to use to obtain sample data: Current Layer, Current & Below, or All Layers.
CloneStamptool ··EfI~"'·
Hold down the Alt (Win) or Option (Mac) key, and then click an area to sample the portion of the image you want to use for your sample.
Joshuatree removedusing the Clone Stamptool.
Drag over the area of the image you want to restore or modify. To select more samples, click the Window menu, click Clone Source, click a clone button, and then repeat steps 5 & 6. Chapter 7
Working with Adjustment Layers, Filters, and Tools
181
Setting Up Multiple Clone Sources
The Clone Source panel allows you to set up to five different sample sources for the Clone Stamp or Healing Brush tools in Photoshop. The Clone Source panel contains five clone buttons to which you can assign samples. Simply open the Clone Source panel, click a Clone Stamp button, and then select the sample you want. The Clone Source panel saves the samples until you close the document. To help you clone the source in a specific location, you can overlay your sample source and show the overlay on the screen. The overlay allows you to view your changes and helps you visualize where to paint. In addition, you can scale and rotate the sample source to clone the sample at a specific size and orientation as well as use the Flip buttons for reversing the clone source. If you need to paint in a very specific location relative to the sampling point, you can use the x and y pixel offset.
Use the Clone Source Panel
o o
o •
o o
o
Click the Clone Source button to display the Clone Source panel. To determine if a Clone Stamp button is in use, point to it to display a Screen Tip. Click a Clone Stamp not in use, or one you want to replace. To set a sample point, Alt (Win) or Option (Mac), and click a point. To show the overlay, select the Show Overlay check box. Select overlay options: •
Opacity. Specify a percentage.
•
Clipped. Select to clip the overlay to the brush size.
•
Auto Hide. Select to hide the overlay while you paint.
•
Invert. Select to invert the overlay.
•
Blend. Click the list arrow, and then select a blending mode.
To scale or rotate the sample source, enter the values you want. •
182
Flip. Click to reverse (horizontal or vertical) the clone source.
Chapter 7
c?o
Offset:
x: 1-131 px Y:
1-71
~~
px
Iloo.~
H: IIOO.~
1-, 1-'
Li~'~
o
Frame Offset: 1 0 Show Overlay
;
lock Frame
Clipped
Opacity: ~
I Normal
W:
I
0 Auto Hide 0 Invert
Using the Dodge and Burn Tools
You can also use the Dodge and Burn tools to lighten or darken specific areas of an image. If you wanted to lighten the shadow areas of an image, you would use the Dodge tool, and conversely, if you wanted to darken the highlight areas of an image, you would select the Burn tool. While there are other ways to control the highlights and shadows of an image, such as a Levels adjustment, the Dodge and Burn tools are controlled by using a brush and painting in the image. That kind of control gives you the option to choose exactly what you want to modify.
Use the Dodge and Burn Tools
o o o
Select the Dodge or Burn tool on the toolbox.
l¥.
Click the Range list arrow on the Options bar, and then click Midtones (middle range of grays), Shadows (dark areas), or Highlights (light areas) . Specify the Exposure value for the stroke .
•
To use the brush as an airbrush, click the Airbrush button. Alternately, select the Airbrush option in the Brushes panel.
o
[:J. ~+
9.
Select a brush tip, and then select brush options on the Options bar.
•
o
Originalimage
Select the Protect Tones check box to minimize clipping and reduce hue shifting. Drag over the part of the image you want to lighten or darken.
Darkareasrestoredwith the Burntool
Did You Know? The Sponge tool does not lighten or darken an image. It saturates or desat-
urates color values as you drag over parts of the image. Since overexposed or underexposed images have a tendency to lose some tonal values and appear flat, you can use the Sponge tool (with Saturate) to return some of the color values back to the image.
Chapter 7
Working with Adjustment Layers, Filters, and Tools
183
Using the Healing Brush and Patch Tools
These tools have become my favorite tools for working with digital images and correcting problems. The Healing Brush tool allows you to correct small imperfections, making them disappear into the surrounding image. This tool works from a sample of the original image, and then matches the texture, lighting, transparency, and shading of the sampled pixels into the source pixels. If an image contains a lot of random noise, before working with the Healing Brush, try lowering the amount of noise with the Reduce Noise filter. After you've applied the Reduce Noise filter, you can use the Healing Brush to clean up the rest of the problem areas. The Patch tool takes a sample and matches the texture, lighting, transparency, and shading of the sample to the source, creating an almost seamless repair of the image. You can also use the Patch tool to clone isolated areas of an image. When you use healing operations in a separate layer, you gain control over the process; you can even use the opacity and blending mode settings to further control the healing process. Always use the Healing Brush in a separate layer ... always.
Use the Healing Brush Tool •
o o •
o o
o 184
Select the Healing Brush tool on the toolbox. Select a soft round brush on the Options bar. Create a new layer above the layer you want to modify. Click the Sample list arrow, and then select the layer option you want to use to obtain sample data: Current Layer, Current & Below, or All Layers.
The image contains scratches and spots [:J. ~+
9. t(
c"".
'H~__ I. tJI.
.I.. ~. '.
IJ.
O .•... eJ. T
It. D. f'l.
Cl,.
[EJ
Hold the Alt (Win) or Option (Mac) key, and then click on the area of the image for a sample. This area should represent the texture (not colorl of the areas you wantto heal. Use small short strokes and carefully drag over the areas you want to change, then release your mouse and move to the next area. The Healing brush works to match the sample to the source. If the texture of the area you are healing changes, repeat step 4, and sample a different area. Chapter 7
The Healing Brush makes short work of correcting damaged images.
Use the Patch Tool
o
o
o o o o o
Select the Patch tool on the tool box.
~_4
•
Select the layer you want to adjust. Using the Patch tool, select the damaged area of the image you want to repair (the Patch tool functions just like the Lasso selection tool). Click the Source option on the Options bar. Move into the middle of the selection marquee, and drag the selection over the area you want to repair and release. As you drag, you will see a copy of the area you are moving over appear in the original selection. Release your mouse when you see the best match.
•.
IJ,
,
T, It, 0,
..·_, RJ
-0, <\ ..J
~
IQ] ~,
d
'It(h
1 NormAl
The Patch tool corrects the damaged area of the image. Repeat steps 2 through 6 to patch any other damaged areas of the image.
Did You Know? The Patch tool options on the Options bar provide power. Onthe Options bar,
The Patchtool removedthe rings underthe model's eyes.
use the Source option with the Patch tool if you are selecting the damaged area and dragging it over the good area, and use the Destination option if you would rather select a good area to drag over the damaged area. The Transparent option preserves transparent areas during the patching process.
-Chapter 7
Working with Adjustment Layers, Filters, and Tools
185
Working with the Spot Healing Brush
A powerful tool in Photoshop's formidable arsenal of restoration and correction tools is the Spot Healing Brush. With a name similar to the Healing Brush, you might expect that the tools have similar features, and you would be correct. The main difference between the two tools is that the Spot Healing Brush does not require you to take a sample of the area to heal. The Spot Healing Brush tool takes the area sample as you work by sampling the surrounding pixels. The Spot Healing Brush, as its name implies, works best on small spots and imperfections. To heal larger areas, the standard Healing Brush, Patch tool, and even the good old Clone Stamp tool are your best bets.
Use the Spot Healing Brush
o
e o
o
Select the Spot Healing Brush tool on the toolbox.
Originalimage ._-- ~+
Select a soft round brush on the Options bar. Create a new layer above the layer you want to modify. Select the Sample All Layers option. Using small short strokes, carefully drag over the areas you want to change, then release your mouse and move to the next area. The Spot Healing brush works to match the sample to the source.
Did You Know? You can use the Clone Source panel to set different sampling points. The
Clone Source panel allows you to set up to five different sampling source points for the Clone Stamp tools or Healing Brush tools. Click a clone source button in the Clone Source panel, and then click a sampling point. To open the Clone Source panel, click the Window menu, and then click Clone Source. You can also scale or rotate the clone source, or show an overlay of the clone source.
186
Chapter 7
TheSpotHealing Brushsmoothedout someofthe wrinkles.
Working with the Red Eye Tool
The Red Eye tool not only gives the digital restorer an excellent tool for removing pesky red eye, it will also remove the green and white reflections in pets' eyes. The biggest generator of red eye is the onboard flash on your camera. Actually, if they would simply rename a camera's built-in flash, "red eye generator," it might help amateur photographers pay more attention. However, until that day comes, designers will still have to deal with images that contain red eye. The Red Eyetool performs two operations: it desaturates the red values, and darkens the pupil.
Use the Red Eye Tool
o •
Select the Red Eye tool on the toolbox. Select from the following options on the Options bar:
Originalimage ._.. ~+ 9. C/ . t(
1'.
• Pupil Size. Select the size of the pupil in relation to the amount of red eye. •
o
Darken Amount. Select how much you want to darken the pupil area of the eye.
Click in the middle of the red portion of the eye, and release. The red is removed, and the pupil is darkened.
Theredeyeis removed withthe clickofyour mouse.
Chapter 7
Working with Adjustment Layers, Filters, and Tools
187
Controlling Tonal Range
The Levels adjustment lets you adjust the tonal range of an image by giving you three sliders-one each for shadows, midtones, and highlights. Dragging the sliders precisely adjusts the tonal ranges of an image. In addition, the Output sliders let you adjust the ink percentages used to print during output. By adjusting the output ink levels, you avoid the overly black images that sometimes plague images printed with high dot-gain papers. The Levels adjustment provides smoother histograms.
Control Tonal Range
o •
o
Original image
Select the layers panel. Select the layer to which you want to control tonal range. Click the Create New Fill or Adjustment layer button, and then click levels or use the icon for Levels from the Adjustments panel. •
•
To open the Properties panel, click the Window menu, and then click Properties.
To have Photoshop set levels for you, including improved smoother histograms, click Auto. Continue to make adjustments, or use the results.
•
o o o
188
To use common Levels settings, click the Preset list arrow in the Properties panel, and then select a preset.
Properties panel Adjustment.s Add an adjust
Click the Channel list arrow to select whether to work on the entire image, or just one of the image's default color channels (useful for color correction). Drag the Shadow input slider to the right to adjust the balance of black in the image. Drag the Midtone input slider left or right to lighten or darken the midtones of the image.
Chapter 7
nt
-»:Illij;
~
IlH'o IJ ~
~!':;lr:i!j1Xl
V ff.li
o Cl)
Drag the Highlight input slider to the left to adjust the balance of white in the image.
Properties
Il Drag the Black and White Output Levels sliders left and right to adjust the percentage of ink used in printing the image.
Preset:
•••••
~
I Custom
:
:1 ~
IRGB
I
Save levels Preset. .. load Levels Preset ... Delete Current Preset
hite Points
Reset levels
Preset from the Properties options menu, and then select and load the file. Properties options menu to save the current Levels adjustment.
Parameter
Auto Options ... Show Clipping for Black
CD Toadjustment, load a previously saved Levels click Load Levels G Click Save Levels Preset from the
Auto-Select
le""ls
Close Close Tab Group
Output levels: ~
~
G Use the eyedropper tools to select black, white, and midtone points directly within the active image .
•
Use the available buttons to finetune the adjustment and navigate through the Properties panel. •
Tonalchangesapplied
The rectangle with downpointing arrow icon creates a clipping group.
• The eye icon toggles visibility of the adjustment layer. • The eye icon with an arrow allows you to see the previous state before the adjustment was made. • The circular arrow returns the image to the default adjustments. • The trash can icon deletes the adjustment layer.
Did You Know? You can view the Levels Histogram anytime. Click the Window menu, and
then click Histogram. Photoshop opens a Histogram panel that lets you view tonal changes to the image as you make them.
Chapter 7 /
Working with Adjustment Layers, Filters, and Tools
189
Working with the Histogram Panel
Photoshop's Histogram panel gives you many options for viewing tonal and color information about the active image. The Histogram's default display is the tonal range of the entire image. However, you can use any of Photoshop's selection tools, select a portion of the active document, and display a histogram for just that portion of the image. You can also view a specific color channel or view all the channels at once. The tonal range and color values for an image are vitally important to generating great graphics, and the Histogram panel is a great resource for instant up-to-date information.
Work with the Histogram Panel
o
• •
Expandedview
Select the Histogram panel. Click the Window menu, and then click Histogram.
Hist09ram~==::::;
I RCS
Ch.nnel:
Uncached Refresh. Click to refresh the image cache (rescans the image).
•
Compact View. Click to create a small, panel-size view of the Histogram panel. Expanded View. Click to create an expanded view of the Histogram panel. Includes options to view specific channels, luminosity settings or color.
•
All Channels View. Click to view all the color channels.
•
Show Statistics. Click to show history statistics.
•
Show Channels In Color. Click to show the channels using specific colors, such as red, green, and blue.
:1
.... Couot.
Mu
: 94.80 32.48
Med a : 98 'I)eels.
NedA!' U P1u& lnooo
I Entire 'mage
Source:
Std Dev:
•
o
~I
Click the Histogram Options button, and then select from the following options: •
~
376000
...
Level:
"<elM ~ (.a,cN~...,
2
Count: Percent e: Cad·t:teve : 2
All channels in color
For Your Information Viewing Information Using the Histogram Panel You can view information about a specific pixel or pixel range using the Histogram panel. Make sure the ExpandedView option is selected, and then place the pointer in the histogram to view information about a specific pixel value. Toview information about a range of values, drag in the histogram to highlight the range.
190
Chapter 7