What does Q factor in TQWT (Q Tunable Wavelet Transform) signify when used for images?

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Sushma TV am 10 Nov. 2020

TQWT has been usen on images for filtering and Feature extraction. Q factor is chosen according to the oscillatory behaviour of the signal.

This can be understood in case of 1D signal. But how can the Q factor be understood when applied to images?

How do we determine what is the value of Q to be chosen?

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