按照想要的颜色突出效果，来更改R、G、B的值，即重新给某种基色在0到255间赋值，使得图像的像素都随之适当变化，达到我们所需的颜色效果-Prominent effect in accordance with the color you want to change the R, G, B values, that is, some color back to the assignment between 0 and 255, making the pixel changes are follow