Section 4: Unveiling the Magic Number: Why 2.205?
"The official formula for μ is: μ = log(height * width) - log(1024 * 1024)"
"For Qwen-Image's standard high-resolution outputs (1664x928), the calculation is:
μ = log(1664 * 928) - log(1048576)
μ ≈ 14.25 - 13.46
μ ≈ 0.7911
The shift factor is exp(μ): exp(0.7911) ≈ 2.205 "
log(1664 * 928) = 14.25
log(1024*1024) = log(1048576) = 13.86
μ ≈ 0.39
exp(0.39) = 1.477
Q1: Where does this official formula come from?
Q2: Is this derivation a fudge or the real source of 2.2 discrete_flow_shift value?