层级节点

../../../_images/compositing_node-types_CompositorNodeLevels.png

层级节点。

The Levels Node read the input color channels and outputs analytical values.

输入

图像

标准法向输入。

属性

通道

C (Combined RGB), R (Red), G (Green), B (Blue), L (Luminance)

输出

1D values based on the levels of an image.

平均值

The mean is the average value of all image pixels in specified channel (combined, red, green, blue, luminance). It represents the overall brightness of the image and can be used as such for setups that depend on how "bright" or "dark" the input is.

标准差

表明图像像素值偏离平均值的程度。低标准差数值表明了图像像素和平均值比较接近，高标准差数值表明了偏离平均值较大的数值范围。

The visualization of such data is just a gray rectangle.