Mayeso a kuzindikira mitundu: njira

Zimene amayezera

(1) Mtundu wa hue umene mlendo amasiya kutcha mtundu kuti 'wobiriwira' n’kuyamba kuutcha 'wabuluu' (malire a magulu a mitundu). (2) Kutha kusiyanitsa mitundu ya hue yoyandikana kwambiri, koyezedwa ndi zolakwika pokonza mitundu yowala mofanana komanso yokhuthala mofanana pa sikirini ya mlendoyo.

Mmene amachitira

Mitundu yonse ndi ya mtundu wa OKLCH, yowala pa 0.72 ndi kukhuthala kwa mtundu pa 0.12 (ili m’gulu la mitundu ya sRGB pa hue iliyonse), choncho hue yokha ndiyo imasintha; imaonetsedwa pa imvi yapakati yopanda mtundu wina. Gawo 1: kachigamba kamodzi ka mtundu pa nthawi, kuchokera pa hue ya 140° (kumapeto kwa wobiriwira) mpaka 250° (kumapeto kwa wabuluu); mlendo amasankha Wobiriwira kapena Buluu (mabatani kapena makiyi a ← ndi →); kachigambako kamakhalabe mpaka ayankhe, kenako pamakhala imvi kwa 350 ms. Njira ziwiri zosinthira pang’onopang’ono zimayambira pa 150° ndi 240°; pa mayeso aliwonse, imodzi mwa njira zomwe sizinamalizidwe imasankhidwa mwachisawawa. Yankho lakuti 'wobiriwira' limasuntha njirayo kulowera ku buluu, ndipo lakuti 'wabuluu' limaisuntha kulowera ku wobiriwira; sitepe imayamba pa 16° ndipo imachepetsedwa ndi theka nthawi iliyonse pamene mayankho asintha mbali, mpaka kufika pa 2°. Mayeso 12 pa njira iliyonse (24 onse pamodzi). Gawo 2: zipewa 52 zoikidwa mofanana mozungulira bwalo la hue (zotalikirana pafupifupi 6.9°, kuyambira pa hue ya 0°) zimapanga mizere 4; mzere uliwonse uli ndi chipewa chokhazikika kumapeto kulikonse ndi zipewa 12 zosakanizidwa pakati pake. Mlendo amakoka zipewazo, kapena amadina ziwiri kuti asinthane, mpaka mitundu ya mzerewo isinthe pang’onopang’ono motsatira. Palibe malire a nthawi kapena kuyeserera koyamba.

Miyezo ya makonzedwe

Kuwerengera zotsatira

Malire: ntchito ya logistic P(buluu | hue) = 1 / (1 + exp(−(hue − b) / s)) imayeneretsedwa ku mayankho onse 24 pogwiritsa ntchito njira ya maximum likelihood pa mndandanda wa ma b ndi ma s (b imakwera ndi masitepe a 0.5°, s imachokera pa 1.5° kufika pa 40°); malirewo ndi b, pomwe mwayi ndi 50%, osonyezedwa mu madigiri a hue ya OKLCH ndipo ali pakati pa 140°–250°. Ngati mayankho onse anali ofanana, malirewo amaikidwa kumapeto kwa malire a mtunduwo ndipo amalembedwa kuti apitirira malirewo. Palibe mtengo wolondola kapena wolakwika. Kukonza motsatira: zipewa zimapatsidwa manambala mozungulira bwalo; chipewa chilichonse chosunthika chimapeza |n − n_left| + |n − n_right|, ndipo chiwerengero cha zolakwika ndi chiwerengero cha (chiwerengero cha chipewa − 2) pa zipewa zonse (0 = dongosolo langwiro, monga pa mayeso a mitundu 100), pa mzere uliwonse ndi zonse pamodzi; chotsika ndi chabwino. Amanenanso chiwerengero cha zipewa zoikidwa molakwika ndi gawo la hue limene lili ndi zolakwika zambiri.

Malamulo ovomerezera mayeso ochitidwa

Njira iliyonse yosinthira pang’onopang’ono iyenera kukhala ndi mayankho 12 ndendende, ndipo hue iliyonse yosonyezedwa iyenera kugwirizana ndi hue imene malamulo a njirayo amapereka potengera mayankho amene aperekedwa mpaka pamenepo (izi zimatsimikizidwa pa seva mpaka kusiyana kwa ±0.05°); mzere uliwonse uyenera kukhala ndi zipewa zake zokha. Ngati sichoncho, kuyesako kumakanidwa.

Kusiyana ndi ntchito yakale yoyambirira

Mayeso a Farnsworth–Munsell a mitundu 100 amagwiritsa ntchito zipewa zenizeni 85 m’matrayi 4 pansi pa kuwala kokhazikika ndipo ali ndi miyezo ya m’zipatala. Baibulo ili limagwiritsa ntchito mitundu 52 ya pa sikirini yosankhidwa ndi ife (48 yosunthika) yokhala ndi kuwala ndi kukhuthala kwa OKLCH kosasintha, pa masikirini amene sanasinthidwe kuti aonetse mitundu molondola; choncho zotsatira zake sizingayerekezere ndi miyezo ya m’zipatala. Ntchito yodziwira malire pakati pa buluu ndi wobiriwira si mbali ya mayeso a mitundu 100.

Zimene mayesowa sangathe kuyeza

Masikirini amasiyana mmene amaonetsera mitundu, ndipo mawonekedwe a usiku, zosefera kuwala kwa buluu, kuwala kwa sikirini ndi kuwala kwa m’chipinda zimasintha maonekedwe a mitundu; zotsatira zingayerekezere pokhapokha ngati mukugwiritsa ntchito sikirini ndi makonzedwe omwewo. Malirewo amadaliranso mawu a mitundu a chinenero cha tsambali. Awa si mayeso owunika vuto la kuona mitundu kapena kuzindikira matenda.

Zinenero ndi mmene zawunikidwira

Mitundu yoyesedwa siidalira chinenero, ndipo malangizo ali m’zinenero zonse za tsambali. Mayina a mayankho akuti 'Wobiriwira' ndi 'Buluu' amasuliridwa, choncho malire a kutchula mitundu amasonyeza mawu a mitundu a chinenero cha tsambali (m’zinenero zina mawu amodzi amagwiritsidwa ntchito pa mitundu yonse iwiri).