Can you explain more about the mean value for each channel?

rishizek / tensorflow-deeplab-v3-plus

DeepLabv3+ built in TensorFlow

MIT License

833 stars 307 forks source link

Can you explain more about the mean value for each channel? #83

Closed sunnylulu closed 2 years ago

sunnylulu commented 4 years ago

Hi,

I have a question about the values(_R_MEAN, _G_MEAN, _B_MEAN) used in below function: def mean_image_addition(image, means=(_R_MEAN, _G_MEAN, _B_MEAN)): The default value is as below _R_MEAN = 123.68 _G_MEAN = 116.78 _B_MEAN = 103.94

could you please explain more about the value, why they are 123,116,103? Thanks in advance!