Dab tsi yog gradient hauv kev ua duab?
Dab tsi yog gradient hauv kev ua duab?

Video: Dab tsi yog gradient hauv kev ua duab?

Video: Dab tsi yog gradient hauv kev ua duab?
Video: Plab Plab Ntswg..(Pluav Pluav Ntswg) Maiv Twm New Song 2023-2024 2024, Hlis ntuj nqeg
Anonim

Ib duab gradient yog ib qho kev hloov pauv hauv kev siv zog lossis xim hauv ib qho duab . Cov gradient ntawm duab yog ib qho ntawm lub hauv paus tsev blocks hauv ua duab . Piv txwv li, Canny edge detector siv duabgradient rau kev nrhiav pom ntug.

Hauv qhov no, Gradient txhais li cas?

npe. qhov degree ntawm inclination, los yog tus nqi ntawm ascentor qhovntsej thiaj tsis mob, nyob rau hauv txoj kev loj, railway, thiab lwm yam. ib tug inclined nto; qib; txoj kev. Physics. tus nqi ntawm kev hloov pauv nrog rau qhov kev ncua deb ntawm qhov sib txawv ntawm qhov sib txawv, raws li qhov kub thiab txias, nyob rau hauv qhov kev taw qhia ntawm kev hloov siab tshaj plaws.

Ib yam li ntawd, Sobel gradient yog dab tsi? Cov Sobel tus neeg teb xov tooj ua 2-D spatial gradient Kev ntsuas ntawm ib daim duab thiab yog li qhia txog thaj tsam ntawm qhov siab spatial zaus uas sib haum rau cov npoo. Feem ntau nws yog siv los nrhiav qhov kwv yees qhov tseeb gradient magnitude ateach point nyob rau hauv ib tug input grayscale duab.

Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qhov gradient magnitude?

Cov qhov loj ntawm gradient yog qhov kev hloov pauv siab tshaj plaws ntawm qhov taw tes. Cov kev taw qhia derivative yog tus nqi ntawm kev hloov hauv ib qho kev taw qhia.

Dab tsi yog orientation hauv kev ua duab?

Kev taw qhia ntawm ntug pixels implies lawv txoj kev. Piv txwv li, ib qho ntug yuav muaj ntsug kev taw qhia (pixels ntawm kab ntsug / nkhaus) lossis kab rov tav kev taw qhia (pixels ntawm kab rov tav), los yog nws yuav slanted. Koj tuaj yeem sawv cev ntawm ntug kev taw qhia los ntawm anangle (hauv degrees lossis radians).

Pom zoo: