I'm so confused right now, because I still don't understand how to find maxVariation, minArea, maxArea, and thresholdDelta value in manual calculation in MSER with this formula :
$$\Psi(R_i^g)=\left(|R_j^{g-\Delta}|-|R_k^{g+\Delta}|\right)/|R_i^{g}|$$
Can anyone tell me how to solve this formula? Thanks.