Levels Node
The Levels Node read the input color channels and outputs analytical values. The output is one-dimensional meaning the visualization will be a uniform gray color.
輸入
- 圖像
Standard color input.
屬性
- Channel
Selects which color values are used to calculate analytics.
- Combined
Calculate values based on the red, green, and blue channels.
- Red
Calculate values based on the red channel.
- Green
Calculate values based on the green channel.
- Blue
Calculate values based on the blue channel.
- Luminance
Calculate values based on the Luminance of the image.
輸出
- Mean
The mean is the average value of all image pixels in specified channel. 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.
- Standard Deviation
How much pixel values differ from the mean. A low standard deviation indicates that the pixel values tend to be very close to the mean. A high standard deviation indicates that the values are spread out over a large range of values.