The three sliders can be used to adjust the image to give you the best results on you particular monitor. Simply slide to the right to increase and to the left to decrease. If you double-click the value label the slider is reset to its default, unadjusted value.
Allows you to apply a simple special effect to the image before it is displayed. Click here for examples.
Allows you to apply a sharpening process to the displayed picture to improve image quality. Simply choose the one that works best for the type of pictures you are using. Note that on slow systems the additional time required to apply the filter can be significant.