Required materials: any Chinese input method with symbol input device (here, QQ five strokes are used to demonstrate).
1. Switch to the QQ five-stroke input method (other input methods are similar in operation process), and right-click the input method status bar.
2. Click Wu Bi Tools-Symbol in the pop-up right-click menu. expression "
3. After opening the symbol input device, switch to "Greek/Russian" on the left, and right-click the third Greek letter to be the gamma symbol.
Below this symbol is a capital gamma symbol, which can be accessed by clicking it.
Gamma introduction
Gamma is used in optics. Every pixel in a digital image has a certain brightness, that is, from black (0) to white. These pixel values are information input to the computer display.
However, due to technical limitations, flat panel (CRT) displays can only output these values in a nonlinear manner. Without adjustment, the gamma value of most CRT monitors is 2.5, which means that if the brightness of a pixel is 0.5, its output brightness on the display is only 0.2(0.5/2.5) without the intervention of color management application (*).
The above contents refer to Baidu Encyclopedia-Gamma.