Adjust the monitor's gamma value to simulate viewing conditions when comparing image contrast on the monitor and on the original. When using color matching software, the system specifically specifies the monitor's gamma value. The gamma value affects the hue of the middle value of the graphic or the grayscale of the middle levels. By adjusting the gamma value, you can change the brightness value of the mid-tone grayscale of the image to increase the middle level of the image without having too much impact on the levels of dark and bright parts. Entering a number larger than one will expand the range of midtones, resulting in less contrast and more detail in images with a large proportion of midtones.