Adjust Gamma

The gamma controller of VividSwitcher can adjust the output gamma of a video adapter to apply color correction to a monitor, including Red, Green and Blue amounts, contrast, brightness, and High/Low clamping.

We can use the sliders showed in Figure 5, 6, 7 to change the current gamma curve (Figure 1), the curve will be applied immediately to the monitor. If we'd like to save current gamma setting, click on the "Add" button (Figure 3) to add it as a gamma preset (Figure 2). We can give a preset a friendly name to identify its use. The buttons showed in Figure 4 are used to apply, to rename, to remove a gamma preset, or to restore current gamma back to normal.

Let's look at Figure 5, these sliders are the basic function of a gamma controller, dragging R, G, B sliders can adjust the output signal amount of Red, Green and Blue separately. There's a link slider, dragging this slider can keep the proportion of R, G, B amounts and increment/decrement their total amount.

Figure 6 is a pair of sliders for adjusting Contrast and Brightness of current gamma curve. They are not only used when the monitor is too dark or too bright but are also used to enhance the picture of movies. When we are watching movies, we can increase a little Contrast amount to bring a more vivid and nicer picture, and also adjust the Brightness amount to meet our best feel.

If a gamma preset is good for watching movies, it may not be good for reading text. We need to define different gamma presets for different use.

Hi/Lo clamping (Figure 7) is a function that we don't use it often. It is used for clipping the highest and lowest gamma value. In most cases, keeping Hi/Lo clamping sliders at their default positions is enough for us. But if we are satisfied with most areas of a movie picture except the brightest or darkest area, we can decrease High clamping value to make the brightest area darker, or increase Low clamping value to make the darkest area brighter.