I was checking tflite file in Netron. There I found the quantization formula in Netron as below:

quantization: 0.007709330413490534 * (q + 3)

I know the quantization formula is: quantized_value = (r/S + Z) Where, r = input, S = scale and Z = zero-point

I have used quantization-aware training before converting the model to the TFLite model. I have uploaded the TFlite Model file to Netron App website where I have found quantization as below image. Can anyone explain What do the q and 3 mean in Netron quantization?

enter image description here

  • $\begingroup$ Hello. Can you 1. put your specific question in the title, and 2. provide the link to the source where you took that screenshot from? $\endgroup$
    – nbro
    Jan 4 at 9:37
  • $\begingroup$ I have added the file and edited the title. $\endgroup$
    – Amit
    Jan 4 at 13:23
  • $\begingroup$ Thanks. You may also want to format the equations with latex/mathjax to improve the readability. $\endgroup$
    – nbro
    Jan 4 at 13:44

I have found the answer to this doubt I had. Here, 0.007709330413490534 = 1 / S, q = input, Z = 3. Basically, this is the formula to quantize the input value. If you pull out 1/S then it becomes clear. Here, is an article related to this topic.


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