Basic Appearance Images

Color and Gray-scale Images
Image Transparency	Set the transparency percentage of the image from opaque to completely transparent.
Transparent Color	Transparent Color Use	Tick to activate the use of a transparent color in the image.
	Transparent Color	Choose a color that should be transparent.
	Transparent Color Margin	Enter the acceptable deviation (0-255) of an image pixel color from the chosen transparent color.
Sharpen Image	See Wikipedia Unsharp masking.
Grayscale	Set the color image to grayscale.
Image Adjustment
Brightness	Set the image brightness. See Wikipedia Brightness.
Contrast	Set the image contrast. See Wikipedia Contrast.
Saturation	Set the image saturation. See Wikipedia Saturation.
Compare	Click to see the image in default values, click again to view the image in chosen specifications.
Reset	Reset the image adjustment specification to the default values.

The “Edit All Parameters” button is disabled, these are the only legend parameters to set for images.