Build opencv with avx2 avx512

according to your reply, i get such conclusion:

  1. build opencv by defalut config, the basline is SSE3,if my cpu does not support SSE3,my executable will not run,the Dispatched include AVX and AVX2 , if i build opencv with AVX2 in config, the baseline is AVX2, and it wiil run if my cpu supportvAVX2.
  2. if i build opencv by defalut config , and my CPU features support AVX and AVX2, they will run this code path at run time.
    Am i correct?