56 Scanning from HP Precisionscan Pro
About the histogram
The histogram is a graph of the distribution of pixels in the selection area. The magenta line represents the current setting for shadow. The red line represents the current setting for highlight. The midtone setting is not represented.
Shadow |
|
|
| Highlight |
|
|
Back to TOC
Changing the hue
Color in an image consists of its hue and the saturation. Hue refers to the overall color cast of the image.
The software sets the hue for an image, but you can change it. You might want to change it if the image has too much of one color, or if you want to create a special effect.
To change the hue
1On the Advanced menu, click Adjust Color.
The turquoise line appears in the histogram when either eyedropper cursor is positioned over the image. This line shows you where in the histogram the pixels in that area of the image occur.
2Change the overall color of the image by doing one of the following on the color wheel:
Drag the indicator circle to a new | |
| area. |
Click the arrow for a color on the | |
| outer edge of the wheel. |
The result of the change can be seen in the image.
Indicator circle
Arrows
Where pixels in the image under the eyedropper fall
The histogram represents pixel distribution in the preview image, not in the final scanned image. Changing the selection area changes the histogram. Changing the setting for highlight or shadow does not change the histogram.
Tip If the image has too much of one color, move the indicator circle away from that color.
To return to the default settings
1On the Advanced menu, click Adjust Color.
2Click Auto to return to the default hue and saturation settings for this scanned image.