{"id":2078,"date":"2014-05-02T14:24:49","date_gmt":"2014-05-02T14:24:49","guid":{"rendered":"http:\/\/www.dientoan.us\/?p=2078"},"modified":"2018-06-19T10:34:23","modified_gmt":"2018-06-19T10:34:23","slug":"photoshop-concepts-and-techniques","status":"publish","type":"post","link":"http:\/\/www.dientoan.us\/?p=2078","title":{"rendered":"Photoshop Essential Concepts & Techniques"},"content":{"rendered":"

B\u00e0i h\u01b0\u1edbng d\u1eabn 1<\/u>: K\u1ef9 thu\u1eadt c\u0103n b\u1ea3n c\u1ea7n thi\u1ebft gi\u00fap c\u00f4ng vi\u1ec7c th\u1ef1c hi\u1ec7n r\u00e1p n\u1ed1i v\u00e0 ch\u1ec9nh s\u1eeda phim \u1ea3nh cho linh \u0111\u1ed9ng v\u00e0 d\u1ec5 d\u00e0ng h\u01a1n.
\nPhim \u1ea3nh kh\u00e1c h\u00ecnh ch\u1ee5p \u1edf m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sau:
\n1. K\u00edch th\u01b0\u1edbc h\u00ecnh ch\u1ee5p kh\u00f4ng c\u00f3 gi\u1edbi h\u1ea1n v\u00e0 c\u1ea7n s\u1eafc n\u00e9t khi c\u00f3 nhu c\u1ea7u in tr\u00ean gi\u1ea5y. Ng\u01b0\u1ee3c l\u1ea1i, k\u00edch th\u01b0\u1edbc khung h\u00ecnh phim \u1ea3nh b\u1ecb gi\u1edbi h\u1ea1n \u1edf m\u1ed9t s\u1ed1 ti\u00eau chu\u1ea9n ph\u1ed5 th\u00f4ng: 1920×1080 hay 1280×720 (\u0111\u1ed9 r\u00f5 n\u00e9t cao, high definition HD), 850×480 (l\u01b0u tr\u1eef), 720×480 (ti\u00eau chu\u1ea9n DVD), 640×360 hay 480×270 (d\u00f9ng tr\u00ean m\u1ea1ng). Phim \u1ea3nh kh\u00f4ng c\u1ea7n s\u1eafc n\u00e9t v\u00ec h\u00ecnh \u1ea3nh di \u0111\u1ed9ng kh\u00f4ng \u0111\u1ee9ng y\u00ean n\u00ean c\u00e1c chi ti\u1ebft d\u00f9 b\u1ecb m\u1edd v\u1eabn th\u1ea5y r\u00f5 n\u1ebfu c\u00f3 m\u00e0u s\u1eafc trung th\u1ef1c. Phim \u1ea3nh khi d\u00f9ng \u0111\u1ed9 d\u1ed3n n\u00e9n qu\u00e1 cao \u0111\u1ec3 gi\u1ea3m s\u1ee9c ch\u1ee9a, m\u00e0u s\u1eafc b\u1ecb sai l\u1ea1c s\u1ebd l\u00e0m h\u00ecnh \u1ea3nh b\u1ecb lem, m\u1edd nh\u00f2a.<\/p>\n

2. Phim \u1ea3nh c\u00f3 \u00e2m nh\u1ea1c v\u00e0 ti\u1ebfng n\u00f3i g\u00e2y nhi\u1ec1u \u1ea3nh h\u01b0\u1edfng t\u01b0 t\u01b0\u1edfng cho ng\u01b0\u1eddi xem nh\u1ea5t l\u00e0 nh\u1eefng kh\u00fac phim c\u00f3 h\u00ecnh \u1ea3nh h\u00e0i h\u00f2a chi\u1ebfu song song \u0111\u00fang l\u00fac v\u1edbi \u00e2m thanh g\u00e2y ra \u1ea5n t\u01b0\u1ee3ng, c\u1ea3m x\u00fac. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y kh\u00f4ng c\u00f3 khi xem h\u00ecnh ch\u1ee5p. Phim \u1ea3nh l\u1ec7 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o c\u00e1ch th\u1ee9c tr\u00ecnh b\u00e0y, n\u1ebfu r\u00e1p n\u1ed1i hay chuy\u1ec3n ti\u1ebfp kh\u00f4ng li\u00ean t\u1ee5c g\u00e2y ra c\u1ea3m t\u01b0\u1edfng b\u1ecb gi\u1ef1t, g\u00e2y gi\u00e1n \u0111o\u1ea1n s\u1ebd kh\u00f4ng h\u1ea5p d\u1eabn ng\u01b0\u1eddi xem.<\/p>\n

3. N\u1ed9i dung h\u00ecnh ch\u1ee5p kh\u00f4ng thay \u0111\u1ed5i sau khi ho\u00e0n th\u00e0nh. Tr\u00e1i l\u1ea1i, n\u1ed9i dung c\u1ee7a khung h\u00ecnh c\u00f3 th\u1ec3 ph\u00f3ng l\u1edbn hay l\u00e0m cho nh\u1ecf l\u1ea1i (zoom or scale), chuy\u1ec3n d\u1ecbch v\u1ecb tr\u00ed (pan or translate), quay (rotate), \u0111\u1ed5i m\u00e0u (hue colorization), ph\u1ee5 \u0111\u1ec1 (text), hay ch\u1ed3ng nhi\u1ec1u khung h\u00ecnh l\u00ean nhau (layers). Ph\u1ee5 \u0111\u1ec1 c\u0169ng c\u00f3 th\u1ec3 bi\u1ebfn \u0111\u1ed5i c\u00f9ng l\u00fac v\u1edbi phim \u1ea3nh trong khung h\u00ecnh.<\/p>\n

\u263c M\u00e0u v\u1ebd v\u00e0 m\u00e0u n\u1ec1n (foreground and background color)<\/u>
\nM\u00e0u v\u1ebd hay d\u00f9ng \u0111\u1ec3 t\u00f4 hay v\u1ebd c\u00e1c chi ti\u1ebft nh\u1ecf c\u1ea7n ch\u1ec9nh s\u1eeda trong m\u1ed9t khung h\u00ecnh. M\u00e0u n\u1ec1n th\u01b0\u1eddng ch\u1ec9 m\u00e0u t\u00f4 cho to\u00e0n th\u1ec3 di\u1ec7n t\u00edch khung h\u00ecnh.<\/p>\n

M\u00e0u n\u1ec1n n\u00ean d\u00f9ng c\u00e1c m\u00e0u s\u1eafc ch\u00ednh sau \u0111\u00e2y: \u0111\u1ecf, cam, v\u00e0ng, l\u1ee5c (xanh l\u00e1 c\u00e2y), lam, ch\u00e0m, t\u00edm, \u0111en, tr\u1eafng (Nine basic colors: red, orange, yellow, green, cyan, blue, magenta, white, black).<\/div>\n
 \u263c T\u1ea1o n\u1ec1n h\u00ecnh \u0111\u1ec3 phim \u1ea3nh c\u00f3 chi\u1ec1u s\u00e2u<\/u>
H\u00ecnh 1.0 c\u00f3 ch\u1ee9a c\u00e1c \u00f4 vu\u00f4ng \u0111en tr\u1eafng t\u01b0\u1ee3ng tr\u01b0ng cho c\u00e1c \u0111i\u1ec3m m\u00e0u trong su\u1ed1t. H\u00ecnh 1.1 c\u00f3 khung h\u00ecnh m\u00e0u xanh \u0111\u1eadm l\u00e0m n\u1ec1n h\u00ecnh \u0111\u01b0\u1ee3c \u0111\u1eb7t b\u00ean d\u01b0\u1edbi khung h\u00ecnh 1.0, ch\u1ec9 tr\u00f4ng th\u1ea5y t\u1ea1i c\u00e1c v\u1ecb tr\u00ed trong su\u1ed1t trong khung h\u00ecnh 1.0 (v\u00ec nh\u00ecn xuy\u00ean qua). Trong phim \u1ea3nh, m\u00e0u v\u1ebd v\u00e0 m\u00e0u n\u1ec1n th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 chuy\u1ec3n m\u00e0u c\u00f3 \u0111\u1ed9 s\u00e1ng li\u00ean t\u1ee5c t\u1eeb m\u1ed9t m\u00e0u \u0111\u00e3 ch\u1ecdn sang m\u1ed9t m\u00e0u kh\u00e1c (gradient). M\u00e0u v\u1ebd th\u01b0\u1eddng d\u00f9ng l\u00e0m m\u00e0u b\u1eaft \u0111\u1ea7u, m\u00e0u n\u1ec1n th\u01b0\u1eddng d\u00f9ng l\u00e0m m\u00e0u ch\u1ea5m d\u1ee9t. G\u00f5 ch\u1eef d (default) \u0111\u1ec3 ch\u1ecdn m\u00e0u tr\u1eafng \u0111en. G\u00f5 x (exchange) \u0111\u1ec3 \u0111\u1ed5i th\u1ee9 t\u1ef1 m\u00e0u v\u1ebd v\u00e0 m\u00e0u n\u1ec1n (th\u00ed d\u1ee5, tr\u1eafng \u0111en \u0111\u1ed5i th\u00e0nh \u0111en tr\u1eafng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i). K\u1ef9 thu\u1eadt n\u00e0y r\u1ea5t th\u00f4ng d\u1ee5ng \u0111\u1ec3 \u0111\u1ed5i \u00e1nh s\u00e1ng (lighting), \u0111\u1ed5i kh\u00f4ng kh\u00ed v\u00e0 t\u00e2m tr\u1ea1ng khung \u1ea3nh (mood) \u0111ang tr\u00ecnh b\u00e0y t\u1ea1o ra nh\u1eefng c\u1ea3nh t\u01b0\u1ee3ng c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng \u1ea3o m\u01a1. <\/div>\n
 H\u00ecnh 1.2 v\u00e0 1.3 tr\u00f4ng t\u1ef1 nhi\u00ean h\u01a1n v\u00ec d\u00f9ng m\u00e0u li\u00ean t\u1ee5c (gradient) v\u1ebd theo h\u01b0\u1edbng b\u00f3ng ng\u01b0\u1eddi m\u1eabu. T\u00f9y theo b\u00f3ng tr\u00ean g\u01b0\u01a1ng m\u1eb7t ng\u01b0\u1eddi m\u1eabu, m\u00e0u li\u00ean t\u1ee5c n\u00ean x\u1ebfp \u0111\u1eb7t theo h\u01b0\u1edbng \u00e1nh s\u00e1ng chi\u1ebfu cho ph\u00f9 h\u1ee3p v\u1edbi b\u00f3ng th\u1eadt ph\u1ea3n chi\u1ebfu tr\u00ean m\u1eb7t ng\u01b0\u1eddi m\u1eabu. N\u1ebfu x\u1eafp kh\u00f4ng \u0111\u00fang, h\u00ecnh tr\u00f4ng c\u00f3 v\u1ebb gi\u1ea3 t\u1ea1o. M\u00e0u li\u00ean t\u1ee5c trong h\u00ecnh 1.2 v\u00e0 1.3 chuy\u1ec3n t\u1eeb m\u00e0u \u0111\u1ecf \u0111\u1eadm sang m\u00e0u \u0111en. H\u01b0\u1edbng m\u00e0u li\u00ean t\u1ee5c x\u1eafp theo chi\u1ec1u ngang trong h\u00ecnh 1.2 v\u00e0 x\u1eafp theo chi\u1ec1u d\u1ecdc trong h\u00ecnh 1.3 \u0111\u1ec3 c\u00f3 c\u1ea3m t\u01b0\u1edfng ng\u01b0\u1eddi m\u1eabu \u0111\u1ee9ng d\u1ef1a g\u1ea7n m\u1ed9t b\u1ee9c t\u01b0\u1eddng. Ch\u1ecdn h\u01b0\u1edbng \u0111\u1ec3 x\u1ebfp b\u00f3ng kh\u00f4ng c\u1ea7n ch\u00ednh x\u00e1c l\u1eafm trong phim \u1ea3nh v\u00ec khi h\u00ecnh \u1ea3nh chuy\u1ec3n \u0111\u1ed9ng, mi\u1ec5n th\u1ea5y khung h\u00ecnh n\u1ed5i nh\u01b0 c\u00f3 chi\u1ec1u s\u00e2u l\u00e0 coi nh\u01b0 th\u00e0nh c\u00f4ng.<\/div>\n
 H\u00ecnh 1.4 d\u00f9ng m\u00e0u li\u00ean t\u1ee5c d\u1ea1ng c\u1ea7u v\u1ed3ng b\u1ea3y m\u00e0u l\u00e0m n\u1ec1n. Photoshop gi\u00fap chuy\u1ec3n m\u00e0u m\u1ed9t c\u00e1ch li\u00ean t\u1ee5c, kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n v\u00e0 c\u00f3 th\u1ec3 ch\u1ecdn b\u1ea5t c\u1ee9 m\u00e0u g\u00ec. N\u00ean ch\u1ecdn c\u00f9ng m\u1ed9t m\u00e0u nh\u01b0ng c\u00f3 \u0111\u1ed9 s\u00e1ng kh\u00e1c nhau l\u00e0m n\u1ec1n v\u00ec m\u1eaft r\u1ea5t nh\u1eady v\u1edbi \u0111\u1ed9 s\u00e1ng l\u00e0m h\u00ecnh ph\u00eda tr\u01b0\u1edbc n\u1ec1n n\u1ed5i b\u1eadt l\u00ean. Tr\u00e1nh ch\u1ecdn h\u01a1n b\u1ea3y m\u00e0u l\u00e0m n\u1ec1n v\u00ec m\u1eaft nh\u00ecn s\u1ebd d\u1ec5 l\u1eabn l\u1ed9n v\u1edbi c\u00e1c chi ti\u1ebft trong h\u00ecnh ph\u00eda tr\u01b0\u1edbc n\u1ec1n l\u00e0m cho khung h\u00ecnh x\u1ea5u \u0111i, m\u1ea5t linh \u0111\u1ed9ng. H\u00ecnh n\u1ec1n n\u00ean c\u00f3 \u0111\u1ed9 s\u00e1ng h\u01a1i t\u1ed1i d\u1ec5 g\u00e2y ra c\u1ea3m gi\u00e1c d\u1ecbu v\u00e0 \u0111\u1eb9p. T\u00f3m l\u1ea1i, Photoshop gi\u00fap t\u1ea1o n\u1ec1n h\u00ecnh b\u1eb1ng m\u1ed9t m\u00e0u \u0111\u01a1n, m\u00e0u c\u00f9ng s\u1eafc nh\u01b0ng c\u00f3 \u0111\u1ed9 s\u00e1ng kh\u00e1c nhau, nhi\u1ec1u m\u00e0u li\u00ean t\u1ee5c, ho\u1eb7c d\u00f9ng m\u1ed9t b\u1ee9c h\u00ecnh kh\u00e1c l\u00e0m n\u1ec1n nh\u01b0 trong h\u00ecnh 1.5. Trong phim \u1ea3nh, n\u1ec1n h\u00ecnh c\u00f2n c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t \u0111o\u1ea1n phim \u1ea3nh kh\u00e1c (n\u1ec1n h\u00ecnh chuy\u1ec3n \u0111\u1ed9ng, kh\u00f4ng \u0111\u1ee9ng y\u00ean).<\/div>\n
Khi ch\u1ecdn m\u1ed9t h\u00ecnh kh\u00e1c l\u00e0m n\u1ec1n nh\u01b0 h\u00ecnh 1.5 v\u00e0 1.6, n\u00ean \u0111\u1ec3 \u00fd hai \u0111i\u1ec1u sau. Ch\u1ecdn h\u00ecnh l\u1edbn h\u01a1n khung h\u00ecnh v\u00e0 ph\u00f3ng nh\u1ecf l\u1ea1i \u0111\u1ec3 chi\u1ec1u cao ho\u1eb7c chi\u1ec1u r\u1ed9ng c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc nh\u01b0 khung h\u00ecnh. Sau khi ph\u00f3ng nh\u1ecf l\u1ea1i, h\u00ecnh l\u00e0m n\u1ec1n tr\u00f4ng s\u1ebd r\u00f5 n\u00e9t h\u01a1n. N\u1ebfu h\u00ecnh n\u1ec1n c\u00f3 c\u00f9ng chi\u1ec1u cao v\u1edbi khung h\u00ecnh, chi\u1ec1u r\u1ed9ng c\u1ee7a h\u00ecnh n\u1ec1n ph\u1ea3i b\u1eb1ng hay d\u00e0i h\u01a1n khung h\u00ecnh. H\u00ecnh ch\u1ee5p v\u1edbi \u1ed1ng k\u00ednh c\u00f3 ti\u00eau c\u1ef1 hay kh\u1ea9u \u0111\u1ed9 m\u1edf l\u1edbn (nh\u1ecf h\u01a1n 1.8) th\u01b0\u1eddng c\u00f3 n\u1ec1n h\u00ecnh r\u1ea5t m\u1edd v\u00ec \u1edf b\u00ean ngo\u00e0i t\u1ea7m ti\u00eau c\u1ef1. Photoshop gi\u00fap l\u00e0m n\u1ec1n h\u00ecnh tr\u1edf n\u00ean lem m\u1edd d\u1ec5 d\u00e0ng d\u00f9ng Gaussian blur filter \u0111\u1ec3 t\u1ea1o ra c\u1ea3m t\u01b0\u1edfng chi\u1ec1u s\u00e2u cho khung h\u00ecnh. H\u00ecnh n\u1ec1n c\u00e0ng m\u1edd, chi ti\u1ebft c\u1ee7a h\u00ecnh ch\u00ednh trong khung h\u00ecnh c\u00e0ng n\u1ed5i. H\u00ecnh n\u1ec1n n\u00ean c\u00f3 m\u00e0u s\u1eafc t\u01b0\u01a1ng t\u1ef1 v\u1edbi h\u00ecnh ch\u00ednh, nh\u01b0 trong h\u00ecnh 1.6, m\u00e0u l\u00e1 \u0111\u1ecf v\u00e0 b\u00edm th\u1eaft c\u1ee7a ng\u01b0\u1eddi m\u1eabu. N\u1ebfu m\u00e0u s\u1eafc kh\u00f4ng \u0111\u01b0\u1ee3c h\u00e0i ho\u00e0, n\u00ean \u0111\u1ed5i h\u00ecnh n\u1ec1n th\u00e0nh \u0111en tr\u1eafng.<\/div>\n
\u263c Quay khung h\u00ecnh l\u1ea1i cho ngay<\/u>
H\u00ecnh b\u00ean ph\u1ea3i n\u00ean quay l\u1ea1i cho ngay trong l\u00fac so\u1ea1n h\u00ecnh \u1ea3nh l\u00e0m phim. D\u00f9ng th\u01b0\u1edbc \u0111o (measure tool) \u0111\u00e1nh d\u1ea5u h\u01b0\u1edbng b\u1ecb l\u1ec7ch. \u0110\u1ec3 h\u00ecnh quay l\u1ea1i \u0111\u01b0\u1ee3c ch\u00ednh x\u00e1c, kho\u1ea3ng c\u00e1ch \u0111\u00e1nh d\u1ea5u kh\u00f4ng n\u00ean ng\u1eafn qu\u00e1 v\u00e0 n\u00ean d\u1ef1a v\u00e0o m\u1ed9t s\u1ed1 chi ti\u1ebft r\u00f5 nh\u1ea5t trong h\u00ecnh (d\u1ecdc theo s\u1ed1ng m\u0169i hay c\u1ed5 ng\u01b0\u1eddi m\u1eabu). Sau \u0111\u00f3, ch\u1ecdn xoay<\/div>\n
m\u00e0n v\u1ea3i (rotate canvas) v\u1edbi g\u00f3c b\u1ea5t k\u1ef3 (arbitrary…). Photoshop s\u1ebd t\u00ednh d\u00f9m g\u00f3c v\u00e0 h\u01b0\u1edbng quay. H\u00ecnh sau khi quay s\u1ebd c\u00f3 nh\u1eefng v\u1ec7t \u0111en v\u00ec b\u1ecb khuy\u1ebft \u1edf b\u1ed1n g\u00f3c. \u0110\u1ec3 \u00fd che c\u00e1c v\u1ebft khuy\u1ebft n\u00e0y b\u1eb1ng c\u00e1ch ph\u00f3ng l\u1edbn h\u00ecnh sau khi quay. N\u1ebfu h\u00ecnh v\u1eabn b\u1ecb l\u1ec7ch ch\u01b0a \u0111\u00fang \u00fd, n\u00ean tr\u1edf l\u1ea1i t\u1eeb \u0111\u1ea7u thay v\u00ec ti\u1ebfp t\u1ee5c xoay m\u00e0n v\u1ea3i nh\u1ea5t l\u00e0 khi quay \u1edf c\u00e1c g\u00f3c \u0111\u1ed9 nh\u1ecf, m\u1ed9t s\u1ed1 chi ti\u1ebft hay m\u00e0u s\u1eafc kh\u00f4ng c\u00f3 trong h\u00ecnh nguy\u00ean th\u1ee7y xu\u1ea5t hi\u1ec7n do sai s\u1ed1 trong ph\u00e9p quay l\u00e0m h\u00ecnh b\u1ecb lem v\u00e0 x\u1ea5u \u0111i.<\/div>\n
\u263c \u0110\u1ed5i \u0111\u1ed9 s\u00e1ng cho m\u00e0u s\u1eafc trong khung h\u00ecnh d\u1ecbu xu\u1ed1ng hay l\u00e0m m\u1edd \u0111i c\u00e1c chi ti\u1ebft kh\u00f4ng \u01b0ng \u00fd<\/u>. Nhi\u1ec1u kh\u00fac phim \u1ea3nh cho th\u1ea5y c\u00e1c bi\u1ec3u hi\u1ec7n tr\u00ean khu\u00f4n m\u1eb7t r\u1ea5t th\u00edch h\u1ee3p v\u1edbi ho\u1ea1t c\u1ea3nh trong phim, nh\u01b0ng \u00e1nh s\u00e1ng l\u1ea1i kh\u00f4ng \u0111\u01b0\u1ee3c ho\u00e0n m\u1ef9 sau khi r\u00e1p<\/div>\n
n\u1ed1i c\u00e1c kh\u00fac phim c\u00f3 \u0111\u1ed9 s\u00e1ng v\u00e0 m\u00e0u s\u1eafc kh\u00e1c bi\u1ec7t nhau. Photoshop (ch\u1ec9nh h\u00ecnh) v\u00e0 Proshow (ch\u1ec9nh h\u00ecnh v\u00e0 phim \u1ea3nh) c\u00f3 th\u1ec3 d\u00f9ng k\u1ef9 thu\u1eadt m\u1eb7t n\u1ea1 che nh\u1eefng khu v\u1ef1c s\u00e1ng qu\u00e1 hay l\u00e0m m\u1edd \u0111i t\u1eeb t\u1eeb m\u1ed9t s\u1ed1 chi ti\u1ebft trong khung h\u00ecnh. H\u00ecnh b\u00ean tr\u00ean cho th\u1ea5y b\u00f3ng ng\u01b0\u1eddi m\u1eabu d\u01b0\u1edbi n\u01b0\u1edbc qu\u00e1 \u0111\u1eadm l\u00e0m gi\u1ea3m s\u1ef1 ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c \u0111\u1ed9ng t\u00e1c v\u00e0 v\u1ebb m\u1eb7t ng\u01b0\u1eddi m\u1eabu ho\u1eb7c g\u00e2y ra s\u1ef1 ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c c\u00e1nh hoa tr\u00ean m\u1eb7t n\u01b0\u1edbc. H\u00ecnh d\u01b0\u1edbi d\u00f9ng m\u1eb7t n\u1ea1 che c\u00f3 \u0111\u1ed9 s\u00e1ng li\u00ean t\u1ee5c (gradient mask) l\u00e0m b\u00f3ng ngu\u1eddi m\u1eabu trong n\u01b0\u1edbc m\u1edd \u0111i t\u1eeb t\u1eeb khi \u0111i ra xa kh\u1ecfi khu\u00f4n m\u1eb7t gi\u00fap cho khung h\u00ecnh c\u00f3 chi\u1ec1u s\u00e2u gi\u1ed1ng nh\u01b0 \u0111\u00e3 ch\u1ee5p v\u1edbi \u1ed1ng k\u00ednh ti\u00eau c\u1ef1 m\u1edf l\u1edbn (kh\u1ea9u \u0111\u1ed9 1.2) c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng cao.<\/div>\n
\u263c M\u00e0u s\u1eafc phim \u1ea3nh li\u00eau trai<\/u>
\nPhim \u1ea3nh ma qu\u00e1i hay n\u1ed9i dung li\u00eau trai th\u01b0\u1eddng d\u00f9ng m\u00e0u \u0111en tr\u1eafng, t\u00edm l\u1ee3t, hay m\u00e0u r\u1ec9 s\u00e9t v\u00e0ng n\u00e2u (sepia) cho c\u00e1c ho\u1ea1t c\u1ea3nh v\u00e0 ch\u1ec9 l\u1ed3ng m\u1ed9t v\u00e0i m\u00e0u \u0111\u01a1n ch\u00ednh v\u1edbi m\u1ee5c \u0111\u00edch l\u00e0m n\u1ed5i b\u1eadt \u0111\u1ec3 g\u00e2y ra s\u1ef1 ch\u00fa \u00fd, hay t\u1ea1o c\u1ea3m gi\u00e1c<\/div>\n
r\u00f9ng r\u1ee3n, gh\u00ea s\u1ee3 nh\u01b0 m\u00e0u m\u00e1u \u0111\u1ecf hay m\u00e0u tinh kh\u00ed xanh l\u00e1 c\u00e2y. Ch\u1ecdn Layer\/Duplicate Layer… \u0111\u1ec3 c\u00f3 hai khung h\u00ecnh n\u1ed9i dung v\u00e0 m\u00e0u s\u1eafc y h\u1ec7t nhau. Ch\u1ecdn Image\/Adjustment\/ Hue-Saturation hay g\u00f5 Ctrl-U \u0111\u1ec3 \u0111\u1ed5i \u0111\u1ed9 s\u00e1ng v\u00e0 \u00e1nh m\u00e0u c\u1ee7a to\u00e0n khung h\u00ecnh nguy\u00ean th\u1ee7y<\/div>\n
\u0111\u1ea7u ti\u00ean ph\u00eda tr\u00ean. Ch\u1ecdn Colorize v\u00e0 \u0111\u1ed9 b\u00e3o h\u00f2a trong kho\u1ea3ng 15 (l\u1ee3t) \u0111\u1ebfn 25 (\u0111\u1eadm). Ch\u1ecdn Hue \u0111\u1ec3 l\u1ef1a \u00e1nh m\u00e0u th\u00edch h\u1ee3p. T\u1ea1o m\u1eb7t n\u1ea1 che cho khung h\u00ecnh tr\u00ean v\u00e0 b\u00f4i x\u00f3a nh\u1eefng v\u1ecb tr\u00ed trong khung h\u00ecnh tr\u00ean \u0111\u1ec3 tr\u00f4ng th\u1ea5y m\u00e0u s\u1eafc nguy\u00ean th\u1ee7y trong khung h\u00ecnh d\u01b0\u1edbi (m\u00f4i \u0111\u1ecf, h\u00ecnh gi\u1eefa). H\u00ecnh \u1ea3nh li\u00eau trai th\u01b0\u1eddng c\u00f3 s\u01b0\u01a1ng m\u00f9 hay kh\u00f3i \u0111\u1ec3 t\u1ea1o ra c\u1ea3m gi\u00e1c ch\u1eadp ch\u1eddn \u1ea9n hi\u1ec7n. T\u1ea1o ra m\u1ed9t m\u1eb7t n\u1ea1 che cho to\u00e0n th\u1ec3 khung h\u00ecnh. B\u1ea5m ch\u1ecdn m\u1eb7t n\u1ea1 v\u00e0 ch\u1ecdn Filter\/Render\/Clouds \u0111\u1ec3 t\u1ea1o ra s\u01b0\u01a1ng m\u00f9 hay kh\u00f3i. B\u1ea3n ch\u1ea5t c\u1ee7a k\u1ef9 thu\u1eadt Clouds b\u1ea5t k\u1ef3 v\u00e0 h\u1ed7n \u0111\u1ed9n n\u00ean k\u1ebft qu\u1ea3 m\u1ed7i l\u1ea7n \u00e1p d\u1ee5ng m\u1ed7i kh\u00e1c. Kh\u00f4ng n\u00ean \u00e1p d\u1ee5ng Clouds nhi\u1ec1u l\u1ea7n cho m\u1ed9t khung h\u00ecnh. N\u1ebfu k\u1ebft qu\u1ea3 kh\u00f4ng v\u1eeba \u00fd, t\u00f4 \u0111en to\u00e0n th\u1ec3 m\u1eb7t n\u1ea1 che v\u00e0 l\u00e0m l\u1ea1i t\u1eeb \u0111\u1ea7u.<\/div>\n
N\u00ean nh\u1edb \u0111\u1ed9 b\u00e3o h\u00f2a \u1edf tr\u1ecb s\u1ed1 0 t\u1ea1o ra h\u00ecnh \u0111en tr\u1eafng. 15<\/div>\n
\u00e1nh m\u00e0u b\u00ean tr\u00e1i th\u01b0\u1eddng d\u00f9ng trong c\u00e1c phim kinh d\u1ecb<\/div>\n
hay trinh th\u00e1m. \u00c1nh m\u00e0u n\u1ed5i ti\u1ebfng nh\u1ea5t m\u00e0u v\u00e0ng n\u00e2u r\u1ec9 s\u00e9t (trong \u00f4 khung xanh) g\u1ecdi l\u00e0 sepia gi\u00fap l\u00e0m n\u1ed5i b\u1eadt nh\u1eefng c\u1ea3nh t\u01b0\u1ee3ng c\u0169 k\u1ef9, ma qu\u00e1i, huy\u1ec1n b\u00ed. \u00c1nh m\u00e0u t\u00edm l\u1ee3t th\u01b0\u1eddng d\u00f9ng trong c\u00e1c nh\u1ea1c c\u1ea3nh Paris By Night (\u00f4 c\u00f3 khung \u0111\u1ecf).<\/div>\n

\u263c Ghi ng\u00e0y th\u00e1ng tr\u00ean h\u00ecnh<\/u>
\n\u263c Ch\u1ec9nh m\u00e0u s\u1eafc v\u00e0 \u0111\u1ed9 s\u00e1ng<\/u>
\n\u263c L\u00e0m h\u00ecnh r\u00f5 n\u00e9t hay m\u1edd \u0111i<\/u><\/p>\n

<\/div>\n

\u263c Phim \u1ea3nh tr\u00ean m\u1eb7t ch\u1eef<\/u>
\n[WMVPlayer video=”\/video\/08.Tigers.flv” image=”\/images\/tigers.0.jpg” width=285 height=184 autostart=0 repeat=1 \/]<\/p>\n

\u263c Useful Photoshop tools for image editing<\/u>
\n0) Undo (Ctrl-Z), history palette.
\n1) Selection (m), Inverse selection, Selection mask (see mask, Ctrl-D).
\n2) Move (v), keyboard arrows (with Shift key).
\n3) Magic wand (w, tolerance).
\n4) Layers (stacking order), properties (blending modes, opacity), effects (stroke, shadow), duplicate.
\n5) Color picker, RGB triplets. C\u00e1ch ch\u1ecdn m\u00e0u c\u01a1 b\u1ea3n.
\n6) Default foreground and background colors (d, x, Alt-Backspace to paint a selection).
\n7) Type tool (t), stroke, shadow, rasterize layer.
\n8) Ruler (Ctrl-R) and guides (drag from ruler area).
\n9) Zoom tool (z), scaling tool.
\n10) Eyedropper tool (i), \u1ed1ng h\u00fat, to pick color from a pixel.
\n11) \u0110\u1ed9 trong v\u00e0 \u0111\u1ed9 \u0111\u1ee5c (Transparency and opacity) t\u1ea1i c\u00e1c v\u1ecb tr\u00ed trong b\u1ee9c h\u00ecnh r\u1ea5t ti\u1ec7n l\u1ee3i cho ph\u01b0\u01a1ng ph\u00e1p t\u00f4 h\u00ecnh n\u1ec1n.
\nPixel transparency (PNG format), layer transparency (opacity setting),
\nmask transparency (partial transparency).
\n12) Gradient tool (up to 3 or 4 selected colors).
\n13) Filter-Gaussian Blur tool.
\n14) Measure tool. Th\u01b0\u1edbc \u0111o d\u00f9ng \u0111\u1ec3 quay b\u1ee9c h\u00ecnh cho ngay m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.
\n\u263c Ph\u00f3ng to nh\u1ecf, di chuy\u1ec3n, quay (Zoom\/Scale, Translate, Rotate) with Naviagtor window.
\nC\u00f9ng\/Ng\u01b0\u1ee3c chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3 (Clockwise, Counterclockwise)<\/div>\n

15) M\u1eb7t n\u1ea1 khung h\u00ecnh (frame mask) d\u00f9ng \u0111\u1ec3 gh\u00e9p h\u00ecnh d\u1ec5 d\u00e0ng.
\nGrayscale mask vs Transparency mask<\/p>\n","protected":false},"excerpt":{"rendered":"

B\u00e0i h\u01b0\u1edbng d\u1eabn 1: K\u1ef9 thu\u1eadt c\u0103n b\u1ea3n c\u1ea7n thi\u1ebft gi\u00fap c\u00f4ng vi\u1ec7c th\u1ef1c hi\u1ec7n r\u00e1p n\u1ed1i v\u00e0 ch\u1ec9nh s\u1eeda phim \u1ea3nh cho linh \u0111\u1ed9ng v\u00e0 d\u1ec5 d\u00e0ng h\u01a1n. Phim \u1ea3nh kh\u00e1c h\u00ecnh ch\u1ee5p \u1edf m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sau: … \u0110\u1ecdc ti\u1ebfp →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[29],"tags":[],"_links":{"self":[{"href":"http:\/\/www.dientoan.us\/index.php?rest_route=\/wp\/v2\/posts\/2078"}],"collection":[{"href":"http:\/\/www.dientoan.us\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.dientoan.us\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.dientoan.us\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.dientoan.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2078"}],"version-history":[{"count":0,"href":"http:\/\/www.dientoan.us\/index.php?rest_route=\/wp\/v2\/posts\/2078\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.dientoan.us\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.dientoan.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2078"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.dientoan.us\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}