{"id":676,"date":"2012-06-14T18:14:26","date_gmt":"2012-06-14T18:14:26","guid":{"rendered":"http:\/\/www.dientoan.us\/?p=676"},"modified":"2018-06-19T10:34:38","modified_gmt":"2018-06-19T10:34:38","slug":"sua-hinh-ong-du-va-thu-phap-dung-photoshop-cs5","status":"publish","type":"post","link":"http:\/\/www.dientoan.us\/?p=676","title":{"rendered":"S\u1eeda h\u00ecnh “\u00d4ng \u0110\u1ed3 v\u00e0 Th\u01b0 Ph\u00e1p” d\u00f9ng Photoshop CS5"},"content":{"rendered":"
T\u00f3m t\u1eaft<\/u>: B\u00e0i sau \u0111\u00e2y h\u01b0\u1edbng d\u1eabn c\u00e1ch ch\u1ec9nh s\u1eeda h\u00ecnh “\u00d4ng \u0110\u1ed3 v\u00e0 Th\u01b0 Ph\u00e1p” d\u00f9ng Photoshop CS5. H\u1ea7u h\u1ebft c\u00e1c phi\u00ean b\u1ea3n Photoshop k\u1ec3 t\u1eeb Photoshop 7 \u0111\u1ec1u c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt d\u00f9ng trong b\u00e0i. H\u00ecnh nguy\u00ean th\u1ee7y b\u00ean tr\u00e1i d\u01b0\u1edbi \u0111\u00e2y v\u00e0 h\u00ecnh sau khi s\u1eeda l\u1ea1i \u0111\u1eb7t \u1edf b\u00ean ph\u1ea3i.<\/div>\n
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\nH\u00ecnh b\u00ean tr\u00e1i cho th\u1ea5y hai khuy\u1ebft \u0111i\u1ec3m ch\u00ednh sau \u0111\u00e2y l\u00e0m cho b\u1ee9c h\u00ecnh tr\u1edf n\u00ean nh\u00e0m kh\u00f4ng \u0111\u1eb7c s\u1eafc:
\n1. Kh\u1ea9u \u0111\u1ed9 \u1ed1ng k\u00ednh \u0111\u1eb7t t\u1ea1i s\u1ed1 h\u01a1i l\u1edbn (f5.6 tr\u1edf l\u00ean) khi ch\u1ee5p t\u1ef1 \u0111\u1ed9ng n\u00ean b\u1ee9c h\u00ecnh m\u1ea5t \u0111i hay kh\u00f4ng c\u00f3 chi\u1ec1u s\u00e2u (absence or loss of depth of field). Nh\u1eefng chi ti\u1ebft ph\u1ee5 nh\u01b0 b\u00fat vi\u1ebft, b\u00e0n tay l\u00e0m ng\u01b0\u1eddi xem b\u1ecb chi ph\u1ed1i kh\u00f4ng t\u1eadp trung v\u00e0o nh\u1eefng n\u00e9t ch\u00ednh c\u1ee7a b\u1ee9c h\u00ecnh.
\nNguy\u00ean t\u1eafc ch\u1ec9nh s\u1eeda<\/u>:
\n1.1. D\u00f9ng Filter.Unsharp Mask \u0111\u1ec3 l\u00e0m ch\u1eef “Nh\u1eabn” cho th\u1eadt r\u00f5 g\u00e2y s\u1ef1 ch\u00fa \u00fd cho ng\u01b0\u1eddi xem h\u00ecnh.
\n1.2. D\u00f9ng Filter.Blur.Gaussian Blur \u0111\u1ec3 l\u00e0m m\u1edd \u0111i c\u00e1c chi ti\u1ebft ph\u1ee5.
\n1.3. D\u00f9ng Tools.Gradient \u0111\u1ec3 nh\u1eefng chi ti\u1ebft l\u00e0m r\u00f5 (ch\u1eef Nh\u1eabn) chuy\u1ec3n sang c\u00e1c chi ti\u1ebft b\u1ecb l\u00e0m m\u1edd \u0111\u01b0\u1ee3c li\u00ean t\u1ee5c t\u1ea1o ra chi\u1ec1u s\u00e2u cho b\u1ee9c h\u00ecnh. D\u00f9ng k\u1ef9 thu\u1eadt n\u00e0y ng\u01b0\u1eddi xem c\u00f3 c\u1ea3m t\u01b0\u1edfng b\u1ee9c h\u00ecnh ch\u1ee5p v\u1edbi \u1ed1ng k\u00ednh ch\u00e2n dung (portrait lens) c\u00f3 kh\u1ea9u \u0111\u1ed9 \u0111\u1eb7t t\u1ea1i s\u1ed1 nh\u1ecf (f1.8 hay nh\u1ecf h\u01a1n). \u0110\u1ed9 m\u1edd (Gaussian Blur) c\u00e0ng l\u1edbn, b\u1ee9c h\u00ecnh c\u00e0ng gi\u1ed1ng \u1ed1ng k\u00ednh c\u00f3 ti\u00eau c\u1ef1 nh\u1ecf (f1.4 hay f1.2).<\/p>\n

2. Chi\u1ec1u cao b\u1ee9c h\u00ecnh qu\u00e1 d\u00e0i l\u00e0m t\u1ea5m gi\u1ea5y vi\u1ebft h\u00ecnh ch\u1eef nh\u1eadt m\u00e9o d\u1ea1ng tr\u00f4ng gi\u1ed1ng h\u00ecnh thang khi\u1ebfn h\u00ecnh x\u1ea5u \u0111i. K\u1ef9 thu\u1eadt r\u1ecdi \u0111\u00e8n s\u00e1ng tr\u00ean s\u00e2n kh\u1ea5u (spotlight) n\u1ebfu \u00e1p d\u1ee5ng \u1edf \u0111\u00e2y c\u00f3 th\u1ec3 r\u1ecdi s\u00e1ng ch\u1eef “Nh\u1eabn” g\u00e2y ra s\u1ef1 ch\u00fa \u00fd v\u00e0 \u0111\u1ea9y nh\u1eefng n\u00e9t m\u00e9o m\u00f3 v\u00e0o ch\u1ed7 t\u1ed1i. V\u00f2ng tr\u00f2n s\u00e1ng l\u00e0m m\u1edd h\u1eb3n hai \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a m\u00e9p gi\u1ea5y v\u00e0 l\u00e0m n\u1ed5i ch\u1eef vi\u1ebft v\u00e0 b\u00e0n tay ph\u1ea3i.
\nNguy\u00ean t\u1eafc ch\u1ec9nh s\u1eeda<\/u>:
\n2.1. D\u00f9ng Feather v\u00e0 Layer Mask \u0111\u1ec3 chi\u1ebfu s\u00e1ng ch\u1eef “Nh\u1eabn”.
\n2.2. D\u00f9ng Layer v\u00e0 Layer opacity \u0111\u1ec3 c\u00e1c chi ti\u1ebft ph\u1ee5 kh\u00f4ng c\u1ea7n thi\u1ebft b\u1ecb \u0111\u1ea9y v\u00e0o ch\u1ed7 t\u1ed1i nh\u01b0 b\u00e0n tay tr\u00e1i, \u0111u\u00f4i b\u00fat vi\u1ebft, m\u00e9p gi\u1ea5y. B\u00f3ng t\u1ed1i n\u00ean t\u00f4 m\u00e0u \u0111en \u0111\u1ec3 khu v\u1ef1c r\u1ecdi \u0111\u00e8n \u0111\u01b0\u1ee3c n\u1ed5i b\u1eadt.<\/p>\n

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C\u00e1ch ch\u1ec9nh s\u1eeda<\/b><\/u><\/div>\n

1. M\u1edf h\u00ecnh nguy\u00ean th\u1ee7y trong Photoshop (ch\u1ecdn File, ch\u1ecdn Open, ch\u1ecdn h\u00ecnh 36.ongdo.jpg). B\u1ea5m ch\u1ecdn l\u1edbp ch\u1ee9a Background trong b\u1ea3ng l\u1edbp ch\u1ee9a (Layer Palette), b\u1ea5m chu\u1ed9t ph\u1ea3i ch\u1ecdn Layer From Background… \u0111\u1ec3 \u0111\u1ed5i h\u00ecnh n\u1ec1n (background) th\u00e0nh m\u1ed9t l\u1edbp ch\u1ee9a (layer).
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\u0110\u1eb7t t\u00ean l\u1edbp ch\u1ee9a n\u00e0y l\u00e0 Original \u0111\u1ec3 l\u01b0u tr\u1eef h\u00ecnh nguy\u00ean th\u1ee7y \u0111\u1ec1 ph\u00f2ng khi c\u1ea7n t\u1edbi.
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2. B\u1ea5m ch\u1ecdn l\u1edbp ch\u1ee9a Original, sau \u0111\u00f3 b\u1ea5m chu\u1ed9t ph\u1ea3i v\u00e0 ch\u1ecdn Duplicate Layer… \u0111\u1ec3 t\u1ea1o ra hai l\u1edbp ch\u1ee9a m\u1edbi c\u00f3 t\u00ean OngDo.Sharp v\u00e0 OngDo.Blur. L\u1edbp ch\u1ee9a OngDo.Sharp l\u00e0m ch\u1eef “Nh\u1eabn” cho r\u00f5 n\u00e9t h\u01a1n. L\u1edbp ch\u1ee9a OngDo.Blur l\u00e0m n\u1ec1n h\u00ecnh (b\u00fat vi\u1ebft, b\u00e0n tay, m\u00e9p gi\u1ea5y, m\u00e0u g\u1ed7) m\u1edd \u0111i gi\u1ed1ng nh\u01b0 ch\u1ee5p h\u00ecnh v\u1edbi \u1ed1ng k\u00ednh c\u00f3 ti\u00eau c\u1ef1 f1.8 hay nh\u1ecf h\u01a1n \u0111\u1ec3 t\u1ea1o ra chi\u1ec1u s\u00e2u cho b\u1ee9c h\u00ecnh.
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\n3. B\u1ea5m ch\u1ecdn l\u1edbp ch\u1ee9a OngDo.Sharp. Ch\u1ecdn Filter.Sharpen.Unsharp Mask \u0111\u1ec3 l\u00e0m r\u00f5 n\u00e9t ch\u1eef “Nh\u1eabn”. B\u1ea5m n\u00fat d\u1ea5u – hay + \u0111\u1ec3 \u0111\u1ed5i \u0111\u1ed9 ph\u00f3ng \u0111\u1ea1i xu\u1ed1ng kho\u1ea3ng 50% hay 67% cho h\u00ecnh nh\u1ecf l\u1ea1i. Cho m\u0169i t\u00ean v\u00e0o khung h\u00ecnh ki\u1ec3m l\u1ea1i (Preview) \u0111\u1ec3 th\u00e0nh d\u1ea5u hi\u1ec7u b\u00e0n tay. B\u1ea5m n\u00fat chu\u1ed9t tr\u00e1i v\u00e0 k\u00e9o cho t\u1edbi khi n\u00e0o th\u1ea5y \u0111\u01b0\u1eddng v\u1ebd ngang nh\u01b0 trong h\u00ecnh b\u00ean tr\u00e1i. \u0110\u1ed5i b\u00e1n k\u00ednh l\u00e0m r\u00f5 n\u00e9t (Radius) th\u00e0nh 15 (r\u00f5 nh\u1ea5t t\u1eeb 15 \u0111\u1ebfn 20, s\u1eafc n\u00e9t qu\u00e1 c\u00e1c v\u1ebft b\u00f3ng trong h\u00ecnh s\u1ebd b\u1ecb m\u1ea5t \u0111i nhi\u1ec1u chi ti\u1ebft hay \u0111\u1ed5i m\u00e0u v\u00e0 tr\u00f4ng kh\u00f4ng t\u1ef1 nhi\u00ean).

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\nH\u00ecnh r\u00f5 nh\u1ea5t khi n\u00e0o v\u1ebft tr\u1eafng tr\u00ean n\u00e9t b\u00fat \u0111en tr\u00f4ng kh\u00f4ng c\u00f2n m\u1edd n\u1eefa nh\u01b0 h\u00ecnh b\u00ean ph\u1ea3i cho th\u1ea5y. Ch\u00fang ta c\u00f3 th\u1ec3 so s\u00e1nh h\u00ecnh tr\u01b0\u1edbc v\u00e0 sau khi l\u00e0m r\u00f5 n\u00e9t \u0111\u1ec3 ch\u1ecdn b\u00e1n k\u00ednh l\u00e0m r\u00f5 n\u00e9t cho \u0111\u00fang. B\u1ea5m n\u00fat chu\u1ed9t tr\u00e1i \u0111\u1ec3 th\u1ea5y h\u00ecnh tr\u01b0\u1edbc khi s\u1eeda. Bu\u00f4ng n\u00fat chu\u1ed9t \u0111\u1ec3 th\u1ea5y h\u00ecnh sau khi s\u1eeda v\u1edbi s\u1ed1 b\u00e1n k\u00ednh l\u00e0m r\u00f5 n\u00e9t.<\/p>\n


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\n4. B\u1ea5m ch\u1ecdn l\u1edbp ch\u1ee9a OngDo.Blur. Ch\u1ecdn Filter.Blur.Gaussian Blur. \u0110\u1ed5i b\u00e1n k\u00ednh l\u00e0m m\u1edd (Radius) th\u00e0nh 25. B\u00e1n k\u00ednh c\u00e0ng l\u1edbn h\u00ecnh c\u00e0ng m\u1edd. B\u00e1n k\u00ednh trong kho\u1ea3ng 20-30 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi chi\u1ec1u s\u00e2u c\u1ee7a \u1ed1ng k\u00ednh ch\u00e2n dung kh\u1ea9u \u0111\u1ed9 \u0111\u1eb7t t\u1ea1i f1.8. K\u00e9o chu\u1ed9t x\u00ea d\u1ecbch h\u00ecnh trong khung \u0111\u1ec3 th\u1ea5y b\u00e0n tay ph\u1ea3i hay \u0111u\u00f4i b\u00fat nh\u01b0 h\u00ecnh b\u00ean tr\u00e1i.
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\n5. Ch\u1ecdn d\u1ee5ng c\u1ee5 di chuy\u1ec3n h\u00ecnh \u0111\u1ea7u m\u0169i t\u00ean c\u00f3 d\u1ea5u c\u1ed9ng (Move Tool) hay g\u00f5 ch\u1eef V. K\u00e9o ra b\u1ed1n \u0111\u01b0\u1eddng k\u1ebb t\u1eeb c\u00e1c th\u01b0\u1edbc \u0111o \u1edf c\u1ea1nh h\u00ecnh tr\u00ean \u0111\u1ea7u v\u00e0 ph\u00eda b\u00ean tr\u00e1i. B\u1ea5m n\u00fat chu\u1ed9t ph\u1ea3i \u0111\u1ec3 ch\u1ecdn \u0111\u01a1n v\u1ecb n\u1ebfu c\u1ea7n. Hai \u0111\u01b0\u1eddng k\u1ebb \u0111\u1ee9ng t\u1ea1i 2 v\u00e0 9. Hai \u0111\u01b0\u1eddng k\u1ebb ngang t\u1ea1i 2 v\u00e0 9.5. C\u00e1c \u0111\u01b0\u1eddng k\u1ebb n\u00e0y t\u1ea1o th\u00e0nh m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt bao quanh ch\u1eef “Nh\u1eabn”. T\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c h\u00ecnh ch\u1ee5p b\u1edfi \u1ed1ng k\u00ednh ch\u00e2n dung, v\u1ecb tr\u00ed b\u00ean trong h\u00ecnh ch\u1eef nh\u1eadt r\u00f5 v\u00ec n\u1eb1m gi\u1eefa \u0111\u1ed9 s\u00e2u \u1ed1ng k\u00ednh (inside depth of field), c\u00f2n b\u00ean ngo\u00e0i b\u1ecb m\u1edd (out of focus). Sau \u0111\u00e2y l\u00e0 c\u00e1ch ph\u1ed1i h\u1ee3p hai l\u1edbp ch\u1ee9a r\u00f5 v\u00e0 m\u1edd \u0111\u1ec3 t\u1ea1o ra hi\u1ec7u qu\u1ea3 h\u00ecnh ch\u00e2n dung.
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\n6. B\u1ea5m ch\u1ecdn d\u1ea5u h\u00ecnh vu\u00f4ng c\u00f3 l\u1ed7 tr\u00f2n \u0111\u1ec3 t\u1ea1o ra m\u1eb7t n\u1ea1 (Add Layer Mask) cho l\u1edbp ch\u1ee9a OngDo.Sharp. Nh\u1edb b\u1ea5m ch\u1ecdn l\u1edbp ch\u1ee9a OngDo.Sharp \u0111\u1ec3 c\u00f3 \u0111\u00e1nh d\u1ea5u m\u00e0u xanh (highlight). \u0110\u1ec3 \u00fd l\u1edbp ch\u1ee9a OngDo.Sharp ph\u1ea3i \u0111\u1eb7t ph\u00eda tr\u00ean l\u1edbp ch\u1ee9a OngDo.Blur nh\u01b0 trong h\u00ecnh d\u01b0\u1edbi \u0111\u00e2y.

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\n7. Ch\u1ecdn m\u00e0u li\u00ean t\u1ee5c (Gradient Tool) \u0111\u1ec3 t\u00f4 m\u1eb7t n\u1ea1. \u0110\u1ec3 \u00fd nh\u1eefng ph\u1ea7n trong h\u00ecnh b\u00ean ph\u1ea3i c\u00f3 ghi d\u1ea5u \u0111\u1ecf. C\u00e1ch t\u00f4 m\u00e0u: Foreground to Background. Ch\u1ecdn d\u1ea5u h\u00ecnh vu\u00f4ng (Linear Gradient). Mode: Normal. Opacity: 100%. M\u00e0u v\u1ebd tr\u1eafng, c\u00f2n m\u00e0u n\u1ec1n \u0111en. G\u00f5 ch\u1eef d (default) \u0111\u1ec3 gi\u1eef m\u00e0u \u0111en tr\u1eafng, hay g\u00f5 x (exchange) \u0111\u1ec3 \u0111\u1ed5i m\u00e0u v\u1ebd tr\u1eafng hay \u0111en.

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\n\u0110\u1ecbnh v\u1ecb tr\u00ed chi\u1ec1u s\u00e2u \u1ed1ng k\u00ednh b\u1eaft \u0111\u1ea7u t\u1eeb d\u1ea5u m\u0169i t\u00ean \u0111\u1ecf ph\u00eda tr\u00ean v\u00e0 ch\u1ea5m d\u1ee9t t\u1ea1i d\u1ea5u m\u0169i t\u00ean \u0111\u1ecf ph\u00eda d\u01b0\u1edbi. Nh\u1eefng v\u1ecb tr\u00ed m\u00e0u tr\u1eafng trong m\u1eb7t n\u1ea1 s\u1ebd cho th\u1ea5y c\u00e1c \u0111i\u1ec3m m\u00e0u (pixels) trong l\u1edbp ch\u1ee9a OngDo.Sharp c\u00f2n nh\u1eefng v\u1ecb tr\u00ed m\u00e0u \u0111en cho th\u1ea5y \u0111i\u1ec3m m\u00e0u trong l\u1edbp ch\u1ee9a OngDo.Blur. Chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng th\u1eb3ng m\u00e0u li\u00ean t\u1ee5c c\u00f3 th\u1ec3 k\u00e9o d\u00e0i ra th\u00eam n\u1ebfu kh\u00f4ng mu\u1ed1n b\u00e0n tay ph\u1ea3i b\u1ecb m\u1edd s\u1edbm (c\u00f3 th\u1ec3 k\u00e9o d\u00e0i \u0111\u1ebfn v\u1ecb tr\u00ed \u0111u\u00f4i b\u00fat vi\u1ebft).
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\n8. Ch\u1ecdn Layer.Layer Mask.Apply n\u1ebfu c\u00f3 \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 gi\u1ed1ng nh\u01b0 h\u00ecnh b\u00ean ph\u1ea3i. M\u1eb7t n\u1ea1 s\u1ebd ph\u1ed1i h\u1ee3p v\u1edbi l\u1edbp ch\u1ee9a t\u1ea1o th\u00e0nh m\u1ed9t h\u00ecnh m\u1edbi. N\u1ebfu kh\u00f4ng v\u1eeba \u00fd mu\u1ed1n b\u1ecf, ch\u1ecdn Layer.Layer Mask.Discard l\u00e0m l\u1ea1i m\u1ed9t m\u1eb7t n\u1ea1 kh\u00e1c, b\u1eaft \u0111\u1ea7u t\u1eeb ph\u1ea7n 6 (6. B\u1ea5m ch\u1ecdn d\u1ea5u h\u00ecnh vu\u00f4ng…) nh\u01b0 \u0111\u00e3 n\u00f3i tr\u00ean. N\u1ebfu th\u00e0nh c\u00f4ng khi ch\u1ecdn Layer.Layer Mask.Apply, l\u1edbp ch\u1ee9a OngDo.Sharp s\u1ebd b\u1ecb s\u1eeda l\u1ea1i kh\u00f4ng c\u00f2n m\u1eb7t n\u1ea1 n\u1eefa nh\u01b0 trong h\u00ecnh d\u01b0\u1edbi \u0111\u00e2y.

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\nTr\u01b0\u1edbc khi ph\u1ed1i h\u1ee3p m\u1eb7t n\u1ea1, ch\u00fang ta n\u00ean xem x\u00e9t k\u1ef9 c\u00e1c v\u1ecb tr\u00ed gi\u1eef r\u00f5 n\u00e9t trong b\u1ee9c h\u00ecnh b\u1eb1ng c\u00e1ch t\u1eaft c\u00e1c d\u1ea5u hi\u1ec7u m\u1eaft ng\u01b0\u1eddi c\u1ee7a c\u00e1c l\u1edbp ch\u1ee9a b\u00ean d\u01b0\u1edbi nh\u01b0 h\u00ecnh b\u00ean tr\u00e1i cho th\u1ea5y.

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\nC\u00e1c v\u1ecb tr\u00ed trong su\u1ed1t \u0111\u1ec3 th\u1ea5y h\u00ecnh m\u1edd trong c\u00e1c l\u1edbp ch\u1ee9a b\u00ean d\u01b0\u1edbi \u0111\u01b0\u1ee3c v\u1ebd b\u1eb1ng nh\u1eefng \u00f4 \u0111en tr\u1eafng nh\u1ecf. C\u00e1c v\u1ecb tr\u00ed trong su\u1ed1t gi\u00fap ch\u1ecdn l\u1ef1a chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng th\u1eb3ng m\u00e0u li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c ch\u00ednh x\u00e1c theo \u00fd mu\u1ed1n.<\/p>\n


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\n9. Ch\u1ecdn Layer.New Layer \u0111\u1ec3 t\u1ea1o ra m\u1ed9t l\u1edbp ch\u1ee9a m\u00e0u \u0111en \u0111\u1eb7t t\u00ean Black. \u0110\u1ec3 \u00fd m\u00e0u v\u1ebd \u0111en b\u1eb1ng c\u00e1ch g\u00f5 d (default) hay x (exchange), sau \u0111\u00f3 g\u00f5 Alt Backspace \u0111\u1ec3 t\u00f4 to\u00e0n th\u1ec3 l\u1edbp ch\u1ee9a th\u00e0nh \u0111en.

\nL\u1edbp ch\u1ee9a Black ph\u1ea3i \u0111\u1eb7t b\u00ean d\u01b0\u1edbi l\u1edbp ch\u1ee9a OngDo.Blur. T\u00f9y theo n\u1ed9i dung c\u1ee7a b\u1ee9c h\u00ecnh, c\u00f3 th\u1ec3 d\u00f9ng c\u00e1c m\u00e0u \u0111\u1eadm kh\u00e1c nh\u01b0 m\u00e0u \u0111\u1ecf, t\u00edm, hay ch\u00e0m \u0111\u1ec3 l\u00e0m m\u00e0u b\u00f3ng t\u1ed1i. Ngay c\u1ea3 sau khi b\u1ee9c h\u00ecnh \u0111\u00e3 ch\u1ec9nh s\u1eeda ho\u00e0n t\u1ea5t, ch\u1ec9 c\u1ea7n \u0111\u1ed5i m\u00e0u c\u1ee7a l\u1edbp ch\u1ee9a Black n\u00e0y s\u1ebd thay \u0111\u1ed5i m\u00e0u b\u00f3ng t\u1ed1i.


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\n\u0110\u1ed5i \u0111\u1ed9 m\u1edd (opacity) c\u1ee7a l\u1edbp ch\u1ee9a OngDo.Blur xu\u1ed1ng 18% \u0111\u1ec3 m\u00e0u \u0111en t\u1eeb l\u1edbp ch\u1ee9a Black b\u00ean d\u01b0\u1edbi tr\u00e0n v\u00e0o h\u00ecnh. N\u1ebfu th\u1ea5y b\u00f3ng t\u1ed1i qu\u00e1, t\u0103ng \u0111\u1ed9 m\u1edd trong kho\u1ea3ng 18-30% \u0111\u1ec3 h\u00ecnh tr\u00f4ng s\u00e1ng s\u1ee7a h\u01a1n. \u0110\u1ed5i s\u1ed1 100% trong v\u00f2ng tr\u00f2n \u0111\u00e1nh d\u1ea5u \u0111\u1ecf b\u1eb1ng c\u00e1ch g\u00f5 s\u1ed1 18 hay b\u1ea5m m\u0169i t\u00ean b\u00ean ph\u1ea3i v\u00e0 k\u00e9o s\u1ed1 xu\u1ed1ng 18%. Nh\u1edb ch\u1ecdn l\u1edbp ch\u1ee9a OngDo.Blur. C\u00e1c s\u1ed1 kh\u00e1c kh\u00f4ng n\u00ean \u0111\u1ed5i (Normal, Fill 100%).

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\nH\u00ecnh b\u00ean ph\u1ea3i cho th\u1ea5y nh\u1eefng ch\u1ed7 t\u1ed1i b\u1ecb b\u00f3ng \u0111en l\u00e0m nh\u1ea1t hay m\u1ea5t \u0111i nh\u1eefng chi ti\u1ebft kh\u00f4ng c\u1ea7n thi\u1ebft \u0111\u1ec3 ng\u01b0\u1eddi xem kh\u00f4ng b\u1ecb ph\u00e2n t\u00e2m nh\u01b0 m\u00e9p gi\u1ea5y, b\u00fat vi\u1ebft, b\u00e0n tay tr\u00e1i, m\u1eb7t b\u00e0n. \u0110\u1ec3 \u00fd hai l\u1edbp ch\u1ee9a OngDo.Blur v\u00e0 Black \u0111\u1ec1u c\u00f3 d\u1ea5u hi\u1ec7u con m\u1eaft. D\u1ea5u hi\u1ec7u con m\u1eaft c\u1ee7a l\u1edbp ch\u1ee9a OngDo.Sharp t\u1ea1m th\u1eddi t\u1eaft \u0111\u1ec3 xem x\u00e9t k\u1ef9 nh\u1eefng ph\u1ea7n h\u00ecnh \u0111\u1eb7t trong b\u00f3ng t\u1ed1i.<\/p>\n


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\n10. B\u1ea5m ch\u1ecdn d\u1ea5u h\u00ecnh vu\u00f4ng c\u00f3 l\u1ed7 tr\u00f2n \u0111\u1ec3 t\u1ea1o ra m\u1eb7t n\u1ea1 (Add Layer Mask) cho l\u1edbp ch\u1ee9a OngDo.Sharp. Nh\u1edb b\u1ea5m ch\u1ecdn l\u1edbp ch\u1ee9a OngDo.Sharp \u0111\u1ec3 c\u00f3 \u0111\u00e1nh d\u1ea5u m\u00e0u xanh (highlight). D\u00f9ng m\u1ed9t h\u00ecnh b\u1ea7u d\u1ee5c c\u00f3 vi\u1ec1n bao chung quanh ph\u1ea7n h\u00ecnh c\u00f3 ch\u1eef “Nh\u1eabn”. B\u00ean trong h\u00ecnh b\u1ea7u d\u1ee5c c\u00f3 \u0111\u1ed9 s\u00e1ng c\u1ee7a l\u1edbp ch\u1ee9a OngDo.Sharp c\u00f2n b\u00ean ngo\u00e0i t\u1ed1i do m\u00e0u \u0111en c\u1ee7a l\u1edbp ch\u1ee9a OngDo.Blur b\u00ean d\u01b0\u1edbi. Ch\u1ecdn vi\u1ec1n h\u00ecnh b\u1ea7u d\u1ee5c r\u1ed9ng kho\u1ea3ng 100 \u0111i\u1ec3m m\u00e0u (pixels) gi\u1ed1ng nh\u01b0 r\u1ecdi \u0111\u00e8n s\u00e1ng tr\u00ean s\u00e2n kh\u1ea5u (spotlight). Ch\u1ecdn Select Inverse \u0111\u1ec3 t\u00f4 ph\u1ea7n ngo\u00e0i h\u00ecnh b\u1ea7u d\u1ee5c v\u1edbi m\u00e0u \u0111en. Sau khi g\u00f5 Alt Backspace h\u00ecnh b\u00ean ph\u1ea3i d\u01b0\u1edbi \u0111\u00e2y s\u1ebd hi\u1ec7n ra.

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<\/p>\n","protected":false},"excerpt":{"rendered":"

T\u00f3m t\u1eaft: B\u00e0i sau \u0111\u00e2y h\u01b0\u1edbng d\u1eabn c\u00e1ch ch\u1ec9nh s\u1eeda h\u00ecnh “\u00d4ng \u0110\u1ed3 v\u00e0 Th\u01b0 Ph\u00e1p” d\u00f9ng Photoshop CS5. H\u1ea7u h\u1ebft c\u00e1c phi\u00ean b\u1ea3n Photoshop k\u1ec3 t\u1eeb Photoshop 7 \u0111\u1ec1u c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt d\u00f9ng trong b\u00e0i. … \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\/676"}],"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=676"}],"version-history":[{"count":0,"href":"http:\/\/www.dientoan.us\/index.php?rest_route=\/wp\/v2\/posts\/676\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.dientoan.us\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.dientoan.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=676"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.dientoan.us\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}