Pehea wau e hoʻokaʻawale ai i kahi kiʻi kala i kāna mau kahawai 3 RGB?
loulou pololei i kēia manaʻo
- E hoʻohana i ka imread(), a laila.
- E hoʻohuli i nā kiʻi me ka hoʻohana ʻana i img=255-img.
- inā hina hina ke kiʻi, e hoʻohālike i ka ʻulaʻula, ka ʻōmaʻomaʻo, a me ka uliuli me ke kiʻi, a i ʻole, e kiʻi i ka ʻulaʻula, ʻōmaʻomaʻo, a me ka uliuli me ka hoʻohana ʻana i ka imsplit()
- E hoʻohana i ka hoʻohui a i ʻole ka unuhi ʻana e hoʻololi i kēlā me kēia kaila kala.
- Hoʻohui i ke kiʻi kala me ka pōpoki (3, ʻulaʻula, ʻōmaʻomaʻo, uliuli)
Pehea wau e hōʻike ai i ke kiʻi RGB ma Matlab?
hōʻike ʻo imshow ( RGB ) i ke kiʻi ʻoniʻoni maoli ʻo RGB i kahi kiʻi. hōʻike ʻo imshow(BW) i ke kiʻi binary BW ma kahi kiʻi. No nā kiʻi binary, hōʻike ʻo imshow i nā pika me ka waiwai 0 (zero) ma ke ʻano ʻeleʻele a me ka 1 me ke keʻokeʻo. hōʻike ʻo imshow(X, palapala ʻāina) i ke kiʻi kuhikuhi ʻia X me ka palapala palapala kala.
ʻEhia mau kaha kala i loko o ke kiʻi RGB?
Nā kiʻi RGB
ʻEkolu mau kaha kiʻi RGB: ʻulaʻula, ʻōmaʻomaʻo, a me ka uliuli. Hoʻohana ʻia nā kaha RGB i nā ʻāpana kala i ka maka o ke kanaka, a hoʻohana ʻia i nā hōʻike kamepiula a me nā kiʻi kiʻi.
Pehea wau e hoʻololi ai i ka RGB i ka grayscale?
1.1 RGB a hiki i ka Grayscale
- Aia kekahi mau ʻano hana maʻamau e hoʻohuli i kahi kiʻi RGB i ke kiʻi hina e like me ke ʻano maʻamau a me ke ʻano kaumaha.
- Kahinahinahina = (R + G + B ) / 3.
- Kahinahinahina = R / 3 + G / 3 + B / 3.
- ʻAhinahina = 0.299R + 0.587G + 0.114B.
- Y = 0.299R + 0.587G + 0.114B.
- U'= (BY)*0.565.
- V'= (RY)*0.713.
Pehea wau e hoʻololi ai i ka RGB i ka grayscale ma Matlab?
I = rgb2gray( RGB ) ke hoʻololi i ke kiʻi kala ʻoiaʻiʻo RGB i ke kiʻi ʻāhinahina I . Hoʻololi ka hana rgb2gray i nā kiʻi RGB i grayscale ma ka hoʻopau ʻana i ka ʻike hue a me ka saturation ʻoiai e mālama ana i ka luminance. Inā ua hoʻokomo ʻia ʻo Parallel Computing Toolbox™, hiki iā rgb2gray ke hana i kēia hoʻololi ʻana ma kahi GPU.
He aha ke kiʻi RGB?
Nā Kiʻi RGB
ʻO kahi kiʻi RGB, i kapa ʻia i kekahi manawa he kiʻi kala ʻoiaʻiʻo, mālama ʻia ma MATLAB ma ke ʻano he m-by-n-by-3 pūʻulu ʻikepili e wehewehe ana i nā ʻāpana kala ʻulaʻula, ʻōmaʻomaʻo, a me ka uliuli no kēlā me kēia pika. ʻAʻole hoʻohana nā kiʻi RGB i kahi palette.
Pehea ʻoe e hoʻokaʻawale ai i ka RGB ma Python?
Python PIL | Image.split() ala
Hoʻohana ʻia ke ʻano split() e hoʻokaʻawale i ke kiʻi i nā hui pākahi. Hoʻihoʻi kēia ʻano hana i kahi tuple o nā hui kiʻi pākahi mai kahi kiʻi. ʻO ka hoʻokaʻawale ʻana i kahi kiʻi "RGB" e hana i ʻekolu mau kiʻi hou i loaʻa i kēlā me kēia me kahi kope o kekahi o nā hui kumu (ʻulaʻula, ʻōmaʻomaʻo, uliuli).
Pehea ʻoe e hoʻololi ai mai ka hina i ka RGB ma Matlab?
loulou pololei i kēia manaʻo
kiʻi8 = uint8(255 * mat2gray(kiʻi pālua)); palapala 'āina = hsv(256); % A i ʻole ka palapala kala āu e makemake ai. rgbKiʻi = ind2rgb(kiʻi8, palapala ʻāina); ʻO % im he kiʻi hina a i kuhikuhi ʻia paha.
Pehea wau e ʻike ai i kahi kiʻi ma RGB?
Kaomi i ke pihi 'print screen' ma kāu papa keyboard e kiʻi i kahi kiʻi o kāu pale. Hoʻopili i ke kiʻi i loko o MS Paint. 2. E kaomi i ka ikona koho kala (ka eyedropper), a laila kaomi i ke kala o ka hoihoi e koho ai, a laila kaomi ma ka 'edit color'.
He aha ke kiʻi RGB ma Matlab?
ʻO ke kiʻi RGB, i kapa ʻia i kekahi manawa he kiʻi kala ʻoiaʻiʻo, mālama ʻia ma ke ʻano he m-by-n-by-3 pūʻulu ʻikepili e wehewehe ana i nā ʻāpana kala ʻulaʻula, ʻōmaʻomaʻo, a me ka uliuli no kēlā me kēia pika. … Hiki i ka hui RGB MATLAB® ke papalua, uint8, a uint16 paha.
Pehea ʻoe e hōʻike ai i ka ʻāpana ʻulaʻula ma ke kiʻi?
No laila, ʻulaʻula maʻemaʻe me ka be #FF0000, ʻo ka ʻōmaʻomaʻo maʻemaʻe ka # 00 FF00 a me ka uliuli maʻemaʻe me ka # 0000 FF. Hōʻike ʻia kēlā me kēia kala e nā ʻāpana 8, no laila ua wehewehe ʻia ke kala e 24 mau ʻāpana. Hāʻawi kēia i ka huina o 16777216 kala (224 kala like ʻole).
Hiki iā RGB ke hōʻike i nā kala āpau?
ʻOi aku ka maikaʻi o ka waihoʻoluʻu RGB no nā noi ma ka pale, e like me ka hoʻolālā kiʻi. Hōʻike ʻia kēlā me kēia kaha kala mai ka 0 (ka liʻiliʻi liʻiliʻi) a i ka 255 (ʻoi loa ka saturated). ʻO ia ke ʻano he 16,777,216 mau kala ʻokoʻa hiki ke hōʻike ʻia i ka lumi kala RGB.
No ke aha mākou e hoʻololi ai i ka RGB i ka grayscale?
Pane hou loa. No ka mea he kiʻi papa hoʻokahi ia mai 0-255 aʻo ka RGB he ʻekolu kiʻi papa ʻokoʻa. ʻO ia ke kumu makemake mākou i ke kiʻi ʻeleʻele hina ma mua o RGB.
No ke aha mākou e hoʻohana ai i ka RGB ma kahi o RYB?
Hoʻohana nā kamepiula i ka RGB no ka mea e hoʻomālamalama ana kā lākou mau pale. ʻO nā kala mua o ka māmā he RGB, ʻaʻole RYB. ʻAʻohe melemele ma kēia huinahā: He melemele wale nō ke nānā aku.