Adobe photoshop elements Benutzerhandbuch

ADOBE PHOTOSHOP ELEMENTS

If your image needs midtone corrections, use 

the gray Input Levels slider. Drag the slider to the 
right to darken the midtones; drag it to the left to 
lighten the midtones. You can also enter values 
directly in the middle Input Levels text box.

Click OK.

To view the adjusted histogram, reopen the 

Levels dialog box. 

The gaps in the adjusted histogram do not indicate 
a perceptible problem in the image unless they are 
large or accompanied by a low pixel count.

In addition to setting the tonal range, you can use 
Levels to set target colors for the lightest and 
darkest areas of detail in the image, as well as areas 
of neutral gray.

When identifying the lightest and darkest areas of 
an image, it’s important to identify representative 
highlights and shadows. Otherwise the tonal range 
may be expanded unnecessarily to include extreme 
pixel values that don’t give the image detail. 
A highlight area must be a printable highlight, not 
specular white. Specular white has no detail, and so 
no ink is printed on the paper. For example, a spot 
of glare is specular white, not a printable highlight.

Select the eyedropper tool, and choose 3 by 3 

Average from the Sample Size menu in the 
eyedropper tool options. This ensures a represen-
tative sample of an area rather than the value of a 
single screen pixel.

Choose View > Actual Pixels to make sure that 

you are viewing the image at 100%.

Open the Levels dialog box. (See “Using the 

When you open Levels, the eyedropper tool (

) is 

still active outside the dialog box. You still have 
access to the scroll controls and to the hand and 
zoom tools by using keyboard shortcuts.

Identify areas of representative highlights, 

known grays, and shadows in the image. One way 
to do this is to move the pointer around the image, 
and look at the Info palette to find the lightest, 
neutral, and darkest areas. (See “Using the Info 
palette” on page 29.) 

Double-click the Set White Point eyedropper 

tool (

) in the Levels dialog box to display the 

Color Picker. Enter the color values you want to 
assign to the lightest area in the image, and click 
OK. Follow these guidelines: 

When you are printing on white paper, you can 

achieve a good highlight in an average-key image 
using RGB values of 244, 244, 244. An approx-
imate grayscale equivalent is a 4% dot. 

You can approximate these target values quickly 

by entering 96 in the Brightness (B) text box under 
the HSB section of the Color Picker.