Autolevel improves the brightness and contrast in most photos, and can be used to bring out the color in underexposed pictures.
Note: Occasionally Autolevel does not improve the appearance of a picture, and may need to be switched off.
Alternatively, use the Effects options in the Paint window of mySewnet™ Draw & Paint, or other graphics apps to alter the color balance in your picture. For example, increase saturation to enhance the intensity of colors, add sharpness to a slightly blurred picture, or use highlights to bring out detail.