{"id":1510,"date":"2023-07-25T13:35:50","date_gmt":"2023-07-25T06:35:50","guid":{"rendered":"https:\/\/ladigi.vn\/t\/?p=1510"},"modified":"2023-07-25T11:47:05","modified_gmt":"2023-07-25T04:47:05","slug":"ly-thuyet-mau-trong-photoshop-cho-nguoi-moi-bat-dau","status":"publish","type":"post","link":"https:\/\/ladigi.vn\/t\/ly-thuyet-mau-trong-photoshop-cho-nguoi-moi-bat-dau\/","title":{"rendered":"L\u00fd thuy\u1ebft m\u00e0u trong PhotoShop cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u"},"content":{"rendered":"
\n

Ch\u1ec9nh s\u1eeda m\u00e0u s\u1eafc cho h\u00ecnh \u1ea3nh l\u00e0 m\u1ed9t trong nh\u1eefng ch\u1ee9c n\u0103ng quan tr\u1ecdng nh\u1ea5t c\u1ee7a Photoshop, do \u0111\u00f3 vi\u1ec7c t\u00ecm hi\u1ec3u v\u1ec1 l\u00fd thuy\u1ebft m\u00e0u s\u1ebd gi\u00fap b\u1ea1n x\u1eed d\u1ee5ng Photoshop 1 c\u00e1ch hi\u1ec7u qu\u1ea3<\/strong><\/span>.<\/p>\n

I. M\u00f4 h\u00ecnh m\u00e0u c\u1ed9ng (additive color model<\/em>)
\n<\/span><\/strong>
\nM\u00e0u c\u1ed9ng l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a m\u1ecdi m\u00e0u s\u1eafc, v\u00ec b\u1eaft ngu\u1ed3n t\u1eeb nguy\u00ean l\u00fd c\u1ea3m l\u1ea1nh nh\u1eadn m\u00e0u c\u1ee7a m\u1eaft. V\u00f5ng m\u1ea1c trong \u0111\u00e1y m\u1eaft ng\u01b0\u1eddi c\u00f3 nh\u1eefng t\u1ebf b\u00e0o h\u00ecnh n\u00f3n nh\u1ea1y c\u1ea3m l\u1ea1nh v\u1edbi nh\u1eefng m\u00e0u \u0111\u1ecf (red), l\u1ee5c (green) & lam (blue). C\u00e1c t\u1ebf b\u00e0o n\u00e0y truy\u1ec1n t\u00edn hi\u1ec7u ri\u00eang l\u1ebb cho \u0111\u1ebfn n\u00e3o b\u1ed9, \u1edf \u0111\u00f3 h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p th\u00e0nh m\u1ecdi th\u1ee9 m\u00e0u s\u1eafc. Ngo\u00e0i ra c\u00f2n c\u00f3 t\u1ebf b\u00e0o h\u00ecnh que nh\u1ea1y c\u1ea3m l\u1ea1nh v\u1edbi nh\u1eefng s\u1eafc \u0111\u1ed9 s\u00e1ng t\u1ed1i c\u1ee7a m\u00e0u s\u1eafc.<\/p>\n

\"\"
\nCh\u00fang ta c\u1ea3m l\u1ea1nh nh\u1eadn \u0111\u01b0\u1ee3c m\u00e0u s\u1eafc nh\u1edd \u00e1nh s\u00e1ng ph\u1ea3n chi\u1ebfu
\nt\u1eeb v\u1eadt th\u1ec3 & \u0111i cho \u0111\u1ebfn m\u1eaft c\u1ee7a ch\u00fang ta <\/span><\/p>\n

N\u0103m 1704, nh\u00e0 b\u00e1c h\u1ecdc n\u1ed5i ti\u1ebfng ng\u01b0\u1eddi Anh Isaac Newton \u0111\u00e3 ph\u00e2n gi\u1ea3i \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng tr\u1eafng th\u00e0nh 7 s\u1eafc c\u1ea7u v\u1ed3ng l\u00e0 t\u00edm – ch\u00e0m – lam – l\u1ee5c – v\u00e0ng – cam – \u0111\u1ecf, trong \u0111\u00f3 t\u00edm, ch\u00e0m, v\u00e0ng, cam c\u00f3 th\u1ec3 t\u1ea1o ra t\u1eeb \u0111\u1ecf, l\u1ee5c & lam. Do \u0111\u00f3 \u0111\u1ecf, l\u1ee5c & lam \u0111\u01b0\u1ee3c xem l\u00e0 3 m\u00e0u c\u01a1 b\u1ea3n (primary colors) \u0111\u1ec3 t\u1ea1o ra b\u1ea5t k\u1ec3 m\u00e0u s\u1eafc n\u00e0o kh\u00e1c.<\/p>\n

M\u1eb7t kh\u00e1c, khoa h\u1ecdc c\u0169ng ch\u1ee9ng minh \u00e1nh s\u00e1ng ch\u1ee7 \u0111\u1ea1o l\u00e0 m\u1ed9t d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c b\u1ee9c x\u1ea1 d\u01b0\u1edbi d\u1ea1ng s\u00f3ng lan t\u1ecfa v\u1edbi t\u1ed1c \u0111\u1ed9 300.000 km\/gi\u00e2y. \u00c1nh s\u00e1ng c\u00f3 m\u00e0u kh\u00e1c nhau l\u00e0 do b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau. Quang ph\u1ed5 m\u00e0 m\u1eaft ng\u01b0\u1eddi nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c ch\u1ec9 l\u00e0 m\u1ed9t khe r\u1ea5t h\u1eb9p tr\u00ean thang s\u00f3ng \u0111i\u1ec7n t\u1eeb, tr\u1ea3i t\u1eeb s\u1eafc t\u00edm th\u1eabm 380nm (nanom\u00e9t, \u0111\u01a1n v\u1ecb \u0111o chi\u1ec1u d\u00e0i b\u1eb1ng m\u1ed9t ph\u1ea7n tri\u1ec7u milim\u00e9t) cho \u0111\u1ebfn s\u1eafc \u0111\u1ecf th\u1eabm 780nm.<\/p>\n

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\nQuang ph\u1ed5 kh\u1ea3 ki\u1ebfn <\/span><\/p>\n

Ngu\u1eddi ta g\u1ecdi m\u00f4 h\u00ecnh m\u00e0u c\u1ed9ng l\u00e0 m\u00f4 h\u00ecnh RGB. Nguy\u00ean l\u00fd n\u00e0y \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00f4ng ngh\u1ec7 ch\u1ebf t\u1ea1o m\u00e0n h\u00ecnh tivi, m\u00e0n h\u00ecnh m\u00e1y vi t\u00ednh, k\u1ef9 thu\u1eadt video, chi\u1ebfu s\u00e1ng\u2026<\/p>\n

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\nM\u1ecdi th\u1ee9 c\u00e1c m\u00e0u t\u1ecda l\u1ea1c trong quang kh\u1ed5 kh\u1ea3 ki\u1ebfn \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o ra
\nb\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p thay \u0111\u1ed5i c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a 3 \u00e1nh s\u00e1ng: red, green, blue <\/span><\/p>\n

Trong Photoshop:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\nR<\/span><\/strong><\/td>\nG<\/span><\/strong><\/td>\nB<\/span><\/strong><\/td>\n<\/tr>\n
\u0110\u1ecf (Red)<\/strong><\/td>\n255<\/td>\n0<\/td>\n0<\/td>\n<\/tr>\n
L\u1ee5c (Green)<\/strong><\/td>\n0<\/td>\n255<\/td>\n0<\/td>\n<\/tr>\n
Lam (Blue)<\/strong><\/td>\n0<\/td>\n0<\/td>\n255<\/td>\n<\/tr>\n
Lam – l\u1ee5c (Cyan)<\/strong><\/td>\n0<\/td>\n255<\/td>\n255<\/td>\n<\/tr>\n
\u0110\u1ecf c\u00e1nh sen (Magenta)<\/strong><\/td>\n255<\/td>\n0<\/td>\n255<\/td>\n<\/tr>\n
V\u00e0ng (Yellow)<\/strong><\/td>\n255<\/td>\n255<\/td>\n0<\/td>\n<\/tr>\n
\u0110en<\/strong><\/td>\n0<\/td>\n0<\/td>\n0<\/td>\n<\/tr>\n
Tr\u1eafng<\/strong><\/td>\n255<\/td>\n255<\/td>\n255<\/td>\n<\/tr>\n
X\u00e1m 50%<\/strong><\/td>\n128<\/td>\n128<\/td>\n128<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

II. M\u00f4 h\u00ecnh m\u00e0u tr\u1eeb (subtractive color model<\/em>)
\n<\/span><\/strong>
\nM\u00f4 h\u00ecnh m\u00e0u c\u1ed9ng b\u1eaft \u0111\u1ea7u t\u1eeb m\u00e0u \u0111en (m\u1ed9t m\u00e0n h\u00ecnh tivi tr\u1ed1ng & c\u1ed9ng m\u00e0u R, G, B \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c m\u00e0u tr\u1eafng). Ng\u01b0\u1ee3c l\u1ea1i m\u00f4 h\u00ecnh m\u00e0u tr\u1eeb b\u1eaft \u0111\u1ea7u v\u1edbi m\u00e0u tr\u1eafng (m\u1ed9t t\u1edd gi\u1ea5y tr\u1eafng \u0111\u01b0\u1ee3c chi\u1ebfu b\u1eb1ng \u00e1nh s\u00e1ng tr\u1eafng & tr\u1eeb \u0111i m\u00e0u R,G, B c\u1ee7a \u00e1nh s\u00e1ng tr\u1eafng \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c m\u00e0u \u0111en).<\/p>\n

Vi\u1ec7c lo\u1ea1i b\u1ecf \u00e1nh s\u00e1ng R, G, B \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng s\u1ef1 vi\u1ec7c in ch\u1ed3ng c\u00e1c m\u00e0u m\u1ef1c lam – l\u1ee5c (cyan), \u0111\u1ecf c\u00e1nh sen (magenta) & v\u00e0ng (yellow). M\u1ef1c Cyan c\u00f3 t\u00e1c d\u1ee5ng h\u1ea5p thu \u00e1nh s\u00e1ng red, m\u1ef1c Magenta h\u1ea5p thu \u00e1nh s\u00e1ng green, m\u1ef1c Yellow h\u1ea5p thu \u00e1nh s\u00e1ng blue.<\/p>\n

\"\"
\nM\u1ef1c Cyan h\u1ea5p thu \u00e1nh s\u00e1ng \u0111\u1ecf – m\u1ef1c Magenta h\u1ea5p thu \u00e1nh s\u00e1ng l\u1ee5c –
\nm\u1ef1c Yellow h\u1ea5p thu \u00e1nh s\u00e1ng lam <\/span><\/p>\n

B\u1ea5t k\u1ec3 m\u00e0u n\u00e0o trong kho\u1ea3ng m\u00e0u ph\u1ee5c ch\u1ebf (CMYK gamut) \u0111\u01b0\u1ee3c \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p thay \u0111\u1ed5i t\u1ef7 l\u1ec7 m\u1ef1c m\u00e0u C, M, Y. M\u00f4 h\u00ecnh m\u00e0u tr\u1eeb \u0111\u01b0\u1ee3c x\u1eed d\u1ee5ng cho k\u1ef9 thu\u1eadt nhi\u1ebfp \u1ea3nh m\u00e0u hi\u1ec7n \u0111\u1ea1i & trong m\u1ecdi th\u1ee9 c\u00e1c ti\u1ebfn tr\u00ecnh in m\u00e0u c\u00f4ng nghi\u1ec7p. Tr\u00ean trong th\u1ef1c ti\u1ec5n do m\u1ef1c in kh\u00f4ng tinh khi\u1ebft ch\u1ec9 n\u00ean khi 3 m\u00e0u C, M, Y ch\u1ed3ng l\u00ean nhau v\u1eabn kh\u00f4ng t\u1ea1o ra \u0111\u01b0\u1ee3c m\u00e0u \u0111en th\u1eadt s\u1ef1. & ng\u00e0nh in ph\u1ea3i x\u1eed d\u1ee5ng th\u00eam 1 b\u1ea3n in v\u1edbi m\u1ef1c \u0111en \u0111\u1ec3 h\u1ed7 tr\u1ee3 cho C, M, Y \u0111\u1ec3 t\u1ea1o th\u00eam chi ti\u1ebft & chi\u1ec1u s\u00e2u cho h\u00ecnh \u1ea3nh.<\/p>\n

\"\"
\nTrong ng\u00e0nh in, 4 m\u00e0u CMYK \u0111\u01b0\u1ee3c g\u1ecdi b\u1eb1ng 4 m\u00e0u process colors <\/span><\/p>\n

Trong in \u1ea5n, \u0111\u1ec3 t\u1ea1o ra m\u00e0u \u0111\u1ecf c\u1edd (Red<\/strong>) ng\u01b0\u1eddi ta in ch\u1ed3ng \u0111\u1ecf c\u00e1nh sen (Magenta<\/strong>) & v\u00e0ng (Yellow<\/strong>). Gi\u1ed1ng nh\u01b0 ta c\u00f3:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\nC (%)<\/span><\/strong><\/td>\nM(%)<\/span><\/strong><\/td>\nY(%)<\/span><\/strong><\/td>\nK(%)<\/span><\/strong><\/td>\n<\/tr>\n
\u0110\u1ecf c\u1edd (Red)<\/strong><\/td>\n0<\/td>\n100<\/td>\n100<\/td>\n0<\/td>\n<\/tr>\n
Xanh l\u00e1 (Green)<\/strong><\/td>\n100<\/td>\n0<\/td>\n100<\/td>\n0<\/td>\n<\/tr>\n
Xanh t\u00edm (Blue)<\/strong><\/td>\n100<\/td>\n100<\/td>\n0<\/td>\n0<\/td>\n<\/tr>\n
M\u00e0u tr\u1eafng<\/strong><\/td>\n0<\/td>\n0<\/td>\n0<\/td>\n0<\/td>\n<\/tr>\n
Cam<\/strong><\/td>\n0<\/td>\n50<\/td>\n100<\/td>\n0<\/td>\n<\/tr>\n
Xanh ng\u1ecdc<\/strong><\/td>\n40<\/td>\n0<\/td>\n20<\/td>\n0<\/td>\n<\/tr>\n
Xanh b\u1ea7u tr\u1eddi<\/strong><\/td>\n60<\/td>\n20<\/td>\n0<\/td>\n0<\/td>\n<\/tr>\n
M\u00e0u h\u1ed3ng<\/strong><\/td>\n5<\/td>\n40<\/td>\n5<\/td>\n0<\/td>\n<\/tr>\n
M\u00e0u be<\/strong><\/td>\n5<\/td>\n5<\/td>\n15<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"\"<\/p>\n

B\u1eb1ng k\u1ef9 thu\u1eadt tram h\u00f3a (screening<\/em>) h\u00ecnh \u1ea3nh m\u00e0u \u0111\u01b0\u1ee3c ph\u1ee5c ch\u1ebf b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p in ch\u1ed3ng c\u00e1c h\u1ea1t tram (screen dot<\/em>) v\u1edbi 4 m\u00e0u C, M, Y, K \u0111i theo 4 g\u00f3c kh\u00e1c nhau<\/p>\n

\n

III. M\u00f4 h\u00ecnh HSB (Hue, Saturation, Brightness<\/em>)<\/span><\/strong><\/p>\n

a. Hue (s\u1eafc m\u00e0u)<\/em><\/strong>: Th\u00f4ng th\u01b0\u1eddng, s\u1eafc m\u00e0u ch\u1ee7 \u0111\u1ea1o l\u00e0 t\u00ean c\u1ee7a m\u00e0u. V\u00ed d\u1ee5: \u0111\u1ecf, cam, l\u1ee5c\u2026 C\u00e1c s\u1eafc m\u00e0u kh\u00e1c nhau \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n tr\u00ean v\u00f2ng tr\u00f2n m\u00e0u & c\u00f3 gi\u00e1 tr\u1ecb t\u1eeb 0o<\/sup> cho \u0111\u1ebfn 360o<\/sup>.<\/p>\n

\"\"
\nV\u00f2ng tr\u00f2n m\u00e0u <\/span><\/p>\n

Ng\u01b0\u1eddi ta c\u0169ng c\u00f3 th\u1ec3 bi\u1ec3u di\u1ec5n Hue \u0111i theo m\u00f4 h\u00ecnh 3 chi\u1ec1u b\u00ean d\u01b0\u1edbi:<\/p>\n

\"\"<\/p>\n

Trong Photoshop, \u0111\u1ec3 ch\u1ecdn m\u00e0u ta nh\u1ea5p chu\u1ed9t v\u00e0o h\u00ecnh t\u01b0\u1ee3ng Foreground color<\/strong> ho\u1eb7c Background color<\/strong>.<\/p>\n

\"\"<\/p>\n

Khi \u0111\u00f3, h\u1ed9p tho\u1ea1i Color Picker<\/em> s\u1ebd hi\u1ec7n ra:<\/p>\n

\"\"<\/p>\n

b. Saturation (\u0111\u1ed9 b\u00e3o h\u00f2a m\u00e0u)<\/em><\/strong>: \u0110\u1ed9 b\u00e3o h\u00f2a m\u00e0u bi\u1ec3u hi\u1ec7n \u0111\u1ed9 thu\u1ea7n khi\u1ebft c\u1ee7a m\u00e0u. Khi c\u00f3 \u0111\u1ed9 b\u00e3o h\u00f2a cao, m\u00e0u s\u1ebd s\u1ea1ch & r\u1ef1c r\u1ee1. Khi c\u00f3 \u0111\u1ed9 b\u00e3o h\u00f2a th\u1ea5p, m\u00e0u s\u1ebd \u0111\u1ee5c & x\u1ec9n. \u0110\u1ed9 b\u00e3o h\u00f2a thay \u0111\u1ed5i t\u1eeb 0% (x\u00e1m) cho \u0111\u1ebfn 100%.<\/p>\n

\"\"<\/p>\n

Tr\u00ean v\u00f2ng tr\u00f2n m\u00e0u, \u0111\u1ed9 b\u00e3o h\u00f2a m\u00e0u t\u0103ng d\u1ea7n t\u1eeb t\u00e2m ra chu vi<\/p>\n

\"\"<\/p>\n

c. Brightness (\u0111\u1ed9 s\u00e1ng)<\/em><\/strong>: \u0110\u1ed9 s\u00e1ng c\u1ee7a m\u1ed9t m\u00e0u mi\u00eau t\u1ea3 n\u00f3 s\u00e1ng hay t\u1ed1i nh\u01b0 th\u1ebf n\u00e0o. \u0110\u1ed9 s\u00e1ng thay \u0111\u1ed5i t\u1eeb 0% cho \u0111\u1ebfn 100%.<\/p>\n

\"\"<\/p>\n

Trong m\u00f4 h\u00ecnh 3 chi\u1ec1u, \u0111\u1ed9 s\u00e1ng t\u0103ng d\u1ea7n t\u1eeb \u0111\u00e1y l\u00ean \u0111\u1ec9nh<\/p>\n

\"\"<\/p>\n

IV. M\u00f4 h\u00ecnh CIE Lab
\n<\/span><\/strong>
\nM\u00f4 h\u00ecnh CIE L*a*b* \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean kh\u1ea3 n\u0103ng c\u1ea3m l\u1ea1nh nh\u1eadn m\u00e0u c\u1ee7a m\u1eaft ng\u01b0\u1eddi. C\u00e1c gi\u00e1 tr\u1ecb Lab mi\u00eau t\u1ea3 m\u1ecdi th\u1ee9 nh\u1eefng m\u00e0u m\u00e0 m\u1eaft m\u1ed9t ng\u01b0\u1eddi b\u00ecnh th\u01b0\u1eddng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c. Lab \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh m\u00e0u \u0111\u1ed9c l\u1eadp \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb & th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u1eed d\u1ee5ng nh\u01b0 1 c\u01a1 s\u1edf tham chi\u1ebfu khi chuy\u1ec3n \u0111\u1ed5i m\u1ed9t m\u00e0u t\u1eeb m\u1ed9t kh\u00f4ng gian m\u00e0u n\u00e0y sang m\u1ed9t kh\u00f4ng gian m\u00e0u kh\u00e1c.<\/p>\n

Theo m\u00f4 h\u00ecnh Lab, m\u1ecdi th\u1ee9 c\u00e1c m\u00e0u c\u00f3 c\u00f9ng 1 \u0111\u1ed9 s\u00e1ng s\u1ebd t\u1ecda l\u1ea1c tr\u00ean c\u00f9ng 1 m\u1eb7t ph\u1eb3ng c\u00f3 d\u1ea1ng h\u00ecnh tr\u00f2n \u0111i theo 2 tr\u1ee5c a* & b*. M\u00e0u c\u00f3 gi\u00e1 tr\u1ecb a* d\u01b0\u01a1ng th\u00ec ng\u1ea3 \u0111\u1ecf, m\u00e0u c\u00f3 gi\u00e1 tr\u1ecb a* \u00e2m th\u00ec ng\u1ea3 l\u1ee5c. Gi\u1ed1ng nh\u01b0 b* d\u01b0\u01a1ng th\u00ec ng\u1ea3 v\u00e0ng & b* \u00e2m th\u00ec ng\u1ea3 lam. C\u00f2n \u0111\u1ed9 s\u00e1ng c\u1ee7a m\u00e0u th\u00ec thay \u0111\u1ed5i \u0111i theo tr\u1ee5c d\u1ecdc.<\/p>\n

\"\"<\/p>\n

V. T\u1ea1i sao m\u00e0u s\u1eafc kh\u00f4ng gi\u1ed1ng nhau
\n<\/span><\/strong>
\nKh\u00f4ng c\u00f3 m\u1ed9t thi\u1ebft b\u1ecb n\u00e0o trong c\u00e1c h\u1ec7 th\u1ed1ng in \u1ea5n c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c ch\u1ebf \u0111\u01b0\u1ee3c to\u00e0n b\u1ed9 quang ph\u1ed5 m\u00e0u m\u00e0 m\u1eaft ng\u01b0\u1eddi nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c. M\u1ed7i thi\u1ebft b\u1ecb \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t kh\u00f4ng gian m\u00e0u h\u1eefu h\u1ea1n n\u00e0o \u0111\u00f3. M\u00f4 h\u00ecnh CIE Lab c\u00f3 kh\u00f4ng gian m\u00e0u c\u1ed1 \u0111\u1ecbnh v\u00ec \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean kh\u1ea3 n\u0103ng c\u1ea3m l\u1ea1nh nh\u1eadn m\u00e0u c\u1ee7a m\u1eaft ng\u01b0\u1eddi. M\u00f4 h\u00ecnh Lab l\u00e0 \u0111\u1ed9c l\u1eadp \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb. C\u00e1c m\u00f4 h\u00ecnh c\u00f2n l\u1ea1i nh\u01b0: RGB, CMYK, HSB th\u00ec c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u kh\u00f4ng gian m\u00e0u kh\u00e1c nhau & ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb.<\/p>\n

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Do c\u00f3 c\u00e1c kh\u00f4ng gian m\u00e0u kh\u00e1c nhau ch\u1ec9 n\u00ean m\u00e0u s\u1eafc c\u1ee7a t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c bi\u1ec3u hi\u1ec7n tr\u00ean c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau c\u0169ng s\u1ebd kh\u00f4ng gi\u1ed1ng nhau. S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u00e0u s\u1eafc c\u00f3 th\u1ec3 ph\u00e1t sinh do h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau (t\u1eeb m\u00e1y qu\u00e9t, t\u1eeb m\u00e1y \u1ea3nh s\u1ed1\u2026); c\u00e1c ph\u1ea7n m\u1ec1m \u0111\u1ed3 h\u1ecda \u0111\u1ecbnh ngh\u0129a m\u00e0u c\u0169ng kh\u00e1c nhau; v\u1eadt li\u1ec7u in kh\u00e1c nhau (gi\u1ea5y in b\u00e1o c\u00f3 kh\u00f4ng gian m\u00e0u h\u1eb9p h\u01a1n gi\u1ea5y couch\u00e9); & do thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau; tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb kh\u00e1c nhau\u2026<\/p>\n

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C\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau c\u00f3 kh\u00f4ng gian m\u00e0u kh\u00e1c nhau<\/p>\n

(C\u00f2n n\u1eefa<\/em>)<\/p>\n

GV NGUY\u1ec4N KHOA C\u00c1T
\nC\u00f4ng ty TNHH Kh\u1ea3i Thi\u00ean (KTC Co., Ltd) – Trung t\u00e2m \u0111\u00e0o t\u1ea1o<\/strong><\/p>\n<\/div>\n

Blend m\u00e0u – T\u00ecm hi\u1ec3u & h\u1ecdc ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u1ec1 m\u00e0u s\u1eafc trong photoshop & lightrom<\/h2>\n