Zones can be created using luminance, hue, saturation, average, red, green, blue, cyan, magenta, and yellow values. Look at how the image below is divided into hue zones.

With Ozone, the color values of each zone can be independently adjusted until you’ve painted a new picture. Your adjustments occur on a zone by zone basis, but you view the result of all color corrections simultaneously.

Color.

Selects one of the 11 zones. Once you click in the Zone selector, you can use the left and right arrow keys to cycle through the zones.

The Extract On pop-up menu allows you to specify the image values to be used for dividing the image into the 11 individual zones.

Zones are created using the image’s luminance values.

Zones are created using the image’s hue. When adjusting the Position parameter, you are selecting different hues.

Zones are created using the image’s saturation values.

Zones are created based on the average of the image’s RGB values.

Zones are created using the image’s red values.

Zones are created using the image’s green values.

Zones are created using the image’s blue values.

Zones are created using the image’s cyan values.

Zones are created using the image’s magenta values.

Zones are created using the image’s yellow values.

Pure black is defined as Zone 0, Zone 5 as middle gray and pure white as Zone 10. By using the View menu, you can look at the zone which is helpful in determining the portions of the image you are going to adjust. The values shown as white in the selected zone are the areas of the image that will be modified by the color adjustments. Alternatively, at the bottom of the Parameter window is a small image thumbnail of the selected zone.

The Position value pinpoints the color values to be used in the selected zone. This value has been preset according to the Digital Zone System, but can be changed if you choose. If the zones are created using Luminance, a high Position value shows the brightest image values as white values in the zone. A low Position value shows the darkest image values as white values in the zone.

The Range value increases or decreases the range of values in the selected zone. This value has been preset according to the Digital Zone System, but can be changed if you want.

Go to the Matte section of Common Filter Controls to see how the Position and Range controls work.

Rotates the hue of the zone.

Adjusts the saturation of the zone. Positive values saturate, negative values desaturate.

Adjusts the brightness of the zone. Positive values brighten, negative values darken.

Adjusts the contrast of the zone. Positive values increase contrast, negative values decrease contrast.

Adjusts the gamma of the zone. The gamma adjustment leaves the white and black points the same and only modifies the values in-between. Positive values lighten the midtones, negative values darken the midtones.

Adds or subtracts red from the zone.

Adds or subtracts green from the zone.

Adds or subtracts blue from the zone.

Sets the color temperature of the zone. Dragging the slider to the right makes the image cooler (bluer) and dragging the slider to the left makes the image warmer (redder).

Adds either Cyan or Magenta to the zone. Dragging the slider to the right makes the image more magenta and dragging the slider to the left makes the image more cyan.