how to do the inceptionv2.9 preprocess question

[bilibilifaker]

https://github.com/onnx/models/blob/main/validated/vision/classification/inception_and_googlenet/inception_v2/model/inception-v2-9.onnx
I have downloaded this model and found the data set, but I do not know how to do the image preprocessing, and the results are all wrong. May I ask who knows how to do the preprocessing of this model? Thank you very much