Pamene tikukonzekera njira yothawirako ntchito yojambula zithunzi za oblique , pofuna kusonkhanitsa chidziwitso cha kapangidwe ka nyumbayo m'mphepete mwa malo omwe mukufuna, nthawi zambiri zimakhala zofunikira kukulitsa malo othawa.
Koma izi zipangitsa kuti pakhale zithunzi zambiri zomwe sitizifuna nkomwe, chifukwa m'malo otalikirapo owulukira, pali data imodzi yokha mwa magalasi asanu omwe kudera la kafukufuku ndilovomerezeka .
Kuchuluka kwa zithunzi zosavomerezeka kumapangitsa kuti chiwerengero chomaliza cha deta chiwonjezeke, chomwe chidzachepetse kwambiri mphamvu yokonza deta, ndipo zingayambitsenso zolakwika pakuwerengera kwa mlengalenga (AT).
Pulogalamu ya zosefera zakuthambo imatha kuchepetsa zithunzi zosavomerezeka ndi 20% ~ 40%, kuchepetsa kuchuluka kwa zithunzi pafupifupi 30% ndikuwongolera magwiridwe antchito a data ndi kupitilira 50%.