Adobe Photoshop CS3 - Manual (Page 183)

PHOTOSHOP CS3
User Guide
176
5 To assign shadow values to the darkest area of the image that you want preserved, double-click the Set Black Point
Eyedropper tool in the Levels or Curves dialog box to display the Color Picker. Enter the values you want to
assign to the darkest area in the image, and click OK. Then click the shadow you identified in step 3.
When you’re printing on white paper, you can usually achieve a good shadow in an average-key image using CMYK
values of 65, 53, 51, and 95. An approximate RGB equivalent is 10, 10, 10, and an approximate grayscale equivalent
is a 96% dot.You can approximate these values quickly by entering 4 in the Brightness (B) text box under the HSB
area of the Color Picker.
With a high-key image, you may want to set the shadow to a higher value to maintain detail in the highlights. Exper-
iment with Brightness values between 4 and 20.
Matching, replacing, and mixing colors
Match the color in different images
The Match Color command matches colors between multiple images, between multiple layers, or between multiple
selections. It also lets you adjust the colors in an image by changing the luminance, changing the color range, and
neutralizing a color cast. The Match Color command works only in RGB mode.
When you use the Match Color command, the pointer becomes the Eyedropper tool. Use the Eyedropper tool while
adjusting the image to view the color pixel values in the Info palette. This palette gives you feedback about changes
in color values as you use the Match Color command. See “View color values in an image” on page 155.
The Match Color command matches the colors in one image (the source image) with those in another image (the
target image). This is useful when you’re trying to make the colors in different photos consistent, or when certain
colors (such as skin tones) in one image must match the colors in another image.
In addition to matching the color between two images, the Match Color command can match the color between
different layers in the same image.
Match the color between two images
1 (Optional) Make a selection in the source and target images.
If you don’t make a selection, then the Match Color command matches the overall image statistics between images.
2 Make the image that you want to target active, and then choose Image > Adjustments > Match Color.
If you’re applying the Match Color command to a specific layer in the target image, make sure that layer is active
when you choose the Match Color command.
3 From the Source menu in the Image Statistics area of the Match Color dialog box, choose the source image whose
colors you’ll be matching in the target image. Choose None when you don’t want to reference a different image to
calculate the color adjustment. With None chosen, the target image and the source image are the same.
If necessary, use the Layer menu to choose the layer from the source image whose colors you want to match. You can
also choose Merged from the Layer menu to match the colors from all the layers in the source image.
4 If you made a selection in the image, do one or more of the following:
• In the Destination Image area, select Ignore Selection When Applying Adjustment if you’re applying the
adjustment to the entire target image. This option ignores the selection in the target image and applies the
adjustment to the entire target image.