Enhancing Images

Sampling the Image for Gray Point

1 Select Set Gray Point

Select Set Gray Point from the pop-up menu at the top of the White Balance palette.

2 If the Apply button is off () , turn it on ()

Apply button

Pop-up menu

Reset button

Sliders

Gain values

3 Sample the image to choose a reference point for white balance

White balance can be defined using a single pixel or the average of the values for all pixels in a selected area.

Using a Single Point to Define White Balance

After selecting Use a single point, click Start. The cursor will take the shape of an eyedropper () when moved over the image in the active window. Click a point that you would like to appear a neutral gray color in the final image. The new value for white bal- ance will be reflected in the image in the active window.

Using the Average of the Area Sampled to Define White Balance

After selecting Marquee Sample, click Start. The cursor will take the shape of an area- selection eyedropper () when moved over the image in the active window; drag the mouse over the image to select an area. White balance will be set to the average for the selected areas, and the image in the active window will be updated to reflect the new value for white balance.

Sample Size

The size of the area sampled with the eyedropper cursor can be set using the Dropper sample size option in the Advanced Color tab of the Preferences dialog.

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Nikon 4 Sampling the Image for Gray Point Select Set Gray Point, Using a Single Point to Define White Balance, Reset button