Adobe Photoshop CS5 One-on-One
Confirm the colors in the image window. The nu- merical values at the bottom of the dialog box read 195°/225° and 255°\285°. Ac ...
Sidebar Title Converting an Image to Black and Whitegoes Here In a world that is saturated with color, something about the elega ...
add up to 100 percent or any other total. Just raise a value to brighten a primary or lower the value to darken it. Once you’ve ...
Adjust the Vibrance and Saturation values. Choose Image→Adjustments→Vibrance to bring up a dialog box with just two sliders: Vi ...
Adjusting Brightness Levels As I mentioned at the outset of this lesson, luminance refers to the quality of lightness and darkne ...
Sidebar Title The nature of Channelsgoes Here To understand how to modify colors in Photo- shop, you have to know how color is c ...
from the image, another just the green, and a third just the blue. Shine the three projectors at the same spot on a white screen ...
Duplicate the image. I often find it helpful to give one of the Auto commands a try before resorting to Levels. (After all, if ...
Figure 6-24. The Adjustments panel switches to show the Levels Adjust- ments option (shown in Figure 6-24). Change the Adjustme ...
Sidebar Title goes Here In the world of statistics, a histogram is a kind of bar graph that shows the distribution of data. In t ...
To preview exactly which pixels will go to black or white, press the Alt key (Option on the Mac) as you drag a slider triangle. ...
Apply the Auto Tone function. In the Adjust- ments panel, click the Auto button to apply the Auto Levels function. The histogra ...
Move the black triangle to the left to a value of 60 to send more of the pixels to black in the Red channel. This causes a littl ...
Add a Vibrance adjustment layer. We’ve lost a bit of color along the way, so return to the Adjustments panel and press the arro ...
Correcting with Curves As a rule, the Auto and Levels commands work best when you want to increase the contrast of an image, not ...
Create a Curves adjustment layer. Like the other adjustments we’ve applied so far, the Curves command can be applied as a stati ...
a point to it. Then drag the point up or down to make the corresponding brightness value lighter or darker. In the middle of th ...
Click and drag an area on the elephant’s forehead. Our pachy- derm has some highlight areas in her forehead that will serve as ...
Figure 6-34. Figure 6-35. Switch to the Red channel. We’ve successfully reduced the contrast, but we’ve left behind a slight co ...
Figure 6-36 shows the image we started with (above) and our final, properly gray, reasonably lit elephant (below). The Adjustmen ...
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