Sky & Leaf Filter
This feature allows users to darken specific colors (foliage area) and lighten others (sky area). In the example below foliage colors that should be green are blurred by the sky with a blue hue. After applying the Sky & Leaf Filter the second image shows those areas are darkened so they will be counted as foliage instead of sky.
To use this filter click on a color square, click on the color in the image to work with and then select the “Color Match Tolerance”. Increase this tolerance to include pixels with colors similar to the selected color.