{"id":2139,"date":"2019-04-30T18:23:31","date_gmt":"2019-04-30T18:23:31","guid":{"rendered":"https:\/\/pageloot.com\/?p=2139"},"modified":"2026-05-05T20:04:50","modified_gmt":"2026-05-05T20:04:50","slug":"qr-code-from-image","status":"publish","type":"post","link":"https:\/\/pageloot.com\/vi\/how-to\/qr-code-from-image\/","title":{"rendered":"C\u00e1ch t\u1ea1o m\u00e3 QR t\u1eeb h\u00ecnh \u1ea3nh"},"content":{"rendered":"

B\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t c\u00e1ch nhanh h\u01a1n \u0111\u1ec3 chia s\u1ebb h\u00ecnh \u1ea3nh \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao v\u1edbi kh\u00e1n gi\u1ea3 c\u1ee7a m\u00ecnh? Vi\u1ec7c g\u1eedi th\u1ee7 c\u00f4ng c\u00e1c t\u1ec7p l\u1edbn ho\u1eb7c y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng nh\u1eadp c\u00e1c URL d\u00e0i th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn gi\u1ea3m t\u01b0\u01a1ng t\u00e1c v\u00e0 g\u00e2y kh\u00f3 ch\u1ecbu. S\u1eed d\u1ee5ng m\u00e3 QR h\u00ecnh \u1ea3nh cho ph\u00e9p b\u1ea1n chuy\u1ec3n \u0111\u1ed5i b\u1ea5t k\u1ef3 b\u1ee9c \u1ea3nh n\u00e0o th\u00e0nh m\u1ed9t li\u00ean k\u1ebft c\u00f3 th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c \u0111\u1ec3 truy c\u1eadp k\u1ef9 thu\u1eadt s\u1ed1 ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n

T\u1ea1i sao b\u1ea1n n\u00ean chuy\u1ec3n \u0111\u1ed5i h\u00ecnh \u1ea3nh th\u00e0nh m\u00e3 QR<\/h2>\n\n\n\n

Trong b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, c\u00e1c doanh nghi\u1ec7p ph\u1ea3i lo\u1ea1i b\u1ecf ma s\u00e1t gi\u1eefa c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac v\u1eadt l\u00fd v\u00e0 n\u1ed9i dung k\u1ef9 thu\u1eadt s\u1ed1. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t Tr\u00ecnh t\u1ea1o m\u00e3 QR h\u00ecnh \u1ea3nh<\/a>, b\u1ea1n cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng b\u1ecf qua c\u00e1c r\u00e0o c\u1ea3n truy\u1ec1n th\u1ed1ng c\u1ee7a vi\u1ec7c chia s\u1ebb t\u1ec7p th\u1ee7 c\u00f4ng. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 trong Ti\u1ebfp th\u1ecb m\u00e3 QR<\/a> n\u01a1i b\u1ea1n mu\u1ed1n d\u1eabn kh\u00e1ch h\u00e0ng t\u1eeb m\u1ed9t qu\u1ea3ng c\u00e1o in tr\u1ef1c ti\u1ebfp \u0111\u1ebfn m\u1ed9t th\u01b0 vi\u1ec7n s\u1ea3n ph\u1ea9m, m\u1ed9t menu h\u00ecnh \u1ea3nh ho\u1eb7c m\u1ed9t danh m\u1ee5c \u0111\u1ea7u t\u01b0 k\u1ef9 thu\u1eadt s\u1ed1.<\/p>\n\n\n\n

Ngo\u00e0i t\u1ed1c \u0111\u1ed9, c\u00e1c m\u00e3 n\u00e0y c\u00f2n cung c\u1ea5p s\u1ef1 linh ho\u1ea1t \u0111\u00e1ng kinh ng\u1ea1c cho c\u00e1c chi\u1ebfn d\u1ecbch d\u00e0i h\u1ea1n. Thay v\u00ec in l\u1ea1i c\u00e1c t\u00e0i li\u1ec7u ti\u1ebfp th\u1ecb \u0111\u1eaft ti\u1ec1n m\u1ed7i khi c\u1ea7n c\u1eadp nh\u1eadt h\u00ecnh \u1ea3nh, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e3 QR \u0111\u1ed9ng<\/a> \u0111\u1ec3 thay \u0111\u1ed5i h\u00ecnh \u1ea3nh \u0111\u00edch trong khi v\u1eabn gi\u1eef nguy\u00ean m\u1eabu in. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y gi\u00fap ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 t\u00e0i nguy\u00ean v\u00e0 \u0111\u1ea3m b\u1ea3o n\u1ed9i dung c\u1ee7a b\u1ea1n lu\u00f4n c\u1eadp nh\u1eadt m\u00e0 kh\u00f4ng t\u1ed1n chi ph\u00ed cho c\u00e1c t\u00e0i s\u1ea3n v\u1eadt l\u00fd m\u1edbi.<\/p>\n\n\n\n

Quy tr\u00ecnh t\u1ea1o m\u00e3 QR h\u00ecnh \u1ea3nh c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n

T\u1ea1o m\u1ed9t li\u00ean k\u1ebft c\u00f3 th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c cho \u1ea3nh c\u1ee7a b\u1ea1n l\u00e0 m\u1ed9t quy tr\u00ecnh \u0111\u01a1n gi\u1ea3n kh\u00f4ng y\u00eau c\u1ea7u chuy\u00ean m\u00f4n k\u1ef9 thu\u1eadt. \u0110\u1ec3 b\u1eaft \u0111\u1ea7u, b\u1ea1n n\u00ean ch\u1ecdn t\u1ec7p h\u00ecnh \u1ea3nh b\u1ea1n mu\u1ed1n chia s\u1ebb \u2013 th\u01b0\u1eddng l\u00e0 JPEG ho\u1eb7c PNG \u2013 v\u00e0 t\u1ea3i n\u00f3 l\u00ean c\u00f4ng c\u1ee5 t\u1ea1o m\u00e3. Sau khi t\u1ec7p \u0111\u01b0\u1ee3c x\u1eed l\u00fd, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn gi\u1eefa m\u00e3 t\u0129nh cho th\u00f4ng tin v\u0129nh vi\u1ec5n ho\u1eb7c phi\u00ean b\u1ea3n \u0111\u1ed9ng cho n\u1ed9i dung c\u00f3 th\u1ec3 c\u1ea7n c\u1eadp nh\u1eadt trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n

\"C\u00e1c<\/figure>\n\n\n\n

Giai \u0111o\u1ea1n ti\u1ebfp theo bao g\u1ed3m vi\u1ec7c t\u00f9y ch\u1ec9nh giao di\u1ec7n c\u1ee7a m\u00e3 \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi nh\u1eadn di\u1ec7n th\u01b0\u01a1ng hi\u1ec7u c\u1ee7a b\u1ea1n. B\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u00e0u s\u1eafc, khung v\u00e0 h\u00ecnh d\u1ea1ng \u0111\u1ec3 l\u00e0m cho m\u00e3 h\u1ea5p d\u1eabn h\u01a1n \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng. Quy tr\u00ecnh k\u1ebft th\u00fac b\u1eb1ng m\u1ed9t giai \u0111o\u1ea1n th\u1eed nghi\u1ec7m nghi\u00eam ng\u1eb7t; lu\u00f4n qu\u00e9t m\u00e3 c\u1ee7a b\u1ea1n b\u1eb1ng nhi\u1ec1u thi\u1ebft b\u1ecb v\u00e0 trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng kh\u00e1c nhau tr\u01b0\u1edbc khi t\u1ea3i xu\u1ed1ng t\u1ec7p \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao cu\u1ed1i c\u00f9ng \u0111\u1ec3 in ho\u1eb7c ph\u00e2n ph\u1ed1i k\u1ef9 thu\u1eadt s\u1ed1.<\/p>\n\n\n\n

\n

B\u1eaft \u0111\u1ea7u t\u1ea1o m\u00e3 QR h\u00ecnh \u1ea3nh c\u1ee7a b\u1ea1n<\/strong> S\u1eb5n s\u00e0ng bi\u1ebfn nh\u1eefng b\u1ee9c \u1ea3nh c\u1ee7a b\u1ea1n th\u00e0nh c\u00f4ng c\u1ee5 ti\u1ebfp th\u1ecb t\u01b0\u01a1ng t\u00e1c? S\u1eed d\u1ee5ng Tr\u00ecnh t\u1ea1o m\u00e3 QR h\u00ecnh \u1ea3nh<\/a> \u0111\u1ec3 t\u1ea3i l\u00ean t\u1ec7p, t\u00f9y ch\u1ec9nh thi\u1ebft k\u1ebf v\u00e0 theo d\u00f5i ph\u00e2n t\u00edch qu\u00e9t c\u1ee7a b\u1ea1n ngay h\u00f4m nay.<\/p>\n<\/blockquote>\n\n\n\n

C\u00e1c ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng thi\u1ebft y\u1ebfu<\/h2>\n\n\n\n

\u0110\u1ec3 m\u00e3 QR hi\u1ec7u qu\u1ea3, n\u00f3 ph\u1ea3i d\u1ec5 d\u00e0ng \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n b\u1edfi b\u1ea5t k\u1ef3 camera \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh n\u00e0o. \u0110\u1ed9 tin c\u1eady n\u00e0y \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n cao \u2013 th\u01b0\u1eddng l\u00e0 c\u00e1c m\u00f4-\u0111un t\u1ed1i tr\u00ean n\u1ec1n s\u00e1ng. M\u00e0u t\u1ed1i h\u01a1n h\u1ea5p th\u1ee5 nhi\u1ec1u \u00e1nh s\u00e1ng h\u01a1n, trong khi m\u00e0u s\u00e1ng h\u01a1n ph\u1ea3n x\u1ea1 n\u00f3, cho ph\u00e9p m\u00e1y qu\u00e9t d\u1ec5 d\u00e0ng ph\u00e2n bi\u1ec7t m\u1eabu d\u1eef li\u1ec7u v\u1edbi n\u1ec1n. B\u1ea1n c\u0169ng n\u00ean \u0111\u1ea3m b\u1ea3o c\u00f3 m\u1ed9t \u201cv\u00f9ng y\u00ean t\u0129nh\u201d (quiet zone), l\u00e0 m\u1ed9t \u0111\u01b0\u1eddng vi\u1ec1n tr\u1eafng r\u00f5 r\u00e0ng xung quanh m\u00e3 \u0111\u1ec3 t\u00e1ch n\u00f3 kh\u1ecfi v\u0103n b\u1ea3n ho\u1eb7c \u0111\u1ed3 h\u1ecda xung quanh.<\/p>\n\n\n\n

\"C\u00e1c<\/figure>\n\n\n\n

K\u00edch th\u01b0\u1edbc l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng kh\u00e1c \u0111\u1ec3 th\u00e0nh c\u00f4ng. \u0110\u1ed1i v\u1edbi c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng \u1edf c\u1ef1 ly g\u1ea7n nh\u01b0 danh thi\u1ebfp ho\u1eb7c bao b\u00ec s\u1ea3n ph\u1ea9m, m\u00e3 ph\u1ea3i c\u00f3 k\u00edch th\u01b0\u1edbc \u00edt nh\u1ea5t 0.8 x 0.8 inch. N\u1ebfu m\u00e3 \u0111\u01b0\u1ee3c d\u00f9ng cho bi\u1ec3n qu\u1ea3ng c\u00e1o ho\u1eb7c \u00e1p ph\u00edch nh\u00ecn t\u1eeb xa, m\u1ed9t quy t\u1eafc chung l\u00e0 t\u1ef7 l\u1ec7 10:1, ngh\u0129a l\u00e0 chi\u1ec1u r\u1ed9ng c\u1ee7a m\u00e3 ph\u1ea3i x\u1ea5p x\u1ec9 m\u1ed9t ph\u1ea7n m\u01b0\u1eddi kho\u1ea3ng c\u00e1ch qu\u00e9t. Theo c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t \u0111\u1ec3 \u0111\u1ecdc m\u00e3 QR<\/a> \u0111\u1ea3m b\u1ea3o r\u1eb1ng kh\u00e1n gi\u1ea3 c\u1ee7a b\u1ea1n kh\u00f4ng b\u1ecb th\u1ea5t v\u1ecdng b\u1edfi c\u00e1c l\u1ea7n qu\u00e9t kh\u00f4ng th\u00e0nh c\u00f4ng.<\/p>\n\n\n\n

Ch\u1ecdn Lo\u1ea1i T\u1ec7p H\u00ecnh \u1ea3nh Ph\u00f9 h\u1ee3p<\/h3>\n\n\n\n

C\u00e1c \u0111\u1ecbnh d\u1ea1ng h\u00ecnh \u1ea3nh kh\u00e1c nhau ph\u1ee5c v\u1ee5 c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o n\u01a1i m\u00e3 QR s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb. M\u1eb7c d\u00f9 h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh t\u1ea1o \u0111\u1ec1u h\u1ed7 tr\u1ee3 c\u00e1c \u0111\u1ecbnh d\u1ea1ng web ti\u00eau chu\u1ea9n, vi\u1ec7c ch\u1ecdn \u0111\u00fang \u0111\u1ecbnh d\u1ea1ng s\u1ebd \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m t\u1ed1t nh\u1ea5t c\u00f3 th\u1ec3 cho ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/p>\n\n\n\n

\n\n\n\n\n\n\n\n\n\n
\u0111\u1ecbnh d\u1ea1ng<\/th>\nCh\u1ea5t l\u01b0\u1ee3ng<\/th>\nTr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1t nh\u1ea5t<\/th>\n<\/tr>\n<\/thead>\n
JPEG \/ JPG<\/td>\nCao<\/td>\nCh\u1ee5p \u1ea3nh chung v\u00e0 chia s\u1ebb tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i<\/td>\n<\/tr>\n
PNG<\/td>\nCao<\/td>\nLogo ho\u1eb7c h\u00ecnh \u1ea3nh y\u00eau c\u1ea7u n\u1ec1n trong su\u1ed1t<\/td>\n<\/tr>\n
SVG<\/td>\nC\u00f3 th\u1ec3 m\u1edf r\u1ed9ng<\/td>\nTi\u1ebfp th\u1ecb in \u1ea5n quy m\u00f4 l\u1edbn v\u00e0 bi\u1ec3n b\u00e1o<\/td>\n<\/tr>\n
PDF<\/td>\nCao<\/td>\nMenu, h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng ho\u1eb7c t\u00e0i li\u1ec7u nhi\u1ec1u trang<\/td>\n<\/tr>\n
WebP<\/td>\nCao<\/td>\nHi\u1ec3n th\u1ecb web v\u00e0 di \u0111\u1ed9ng hi\u1ec7u su\u1ea5t cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n

Theo d\u00f5i N\u00e2ng cao v\u00e0 Qu\u1ea3n l\u00fd N\u1ed9i dung<\/h2>\n\n\n\n
\"H\u01b0\u1edbng<\/figure>\n\n\n\n

Khi b\u1ea1n s\u1eed d\u1ee5ng m\u1ed9t tr\u00ecnh t\u1ea1o m\u00e3 QR chuy\u00ean nghi\u1ec7p c\u00f3 logo<\/a> t\u00ednh n\u0103ng, b\u1ea1n \u0111ang l\u00e0m nhi\u1ec1u h\u01a1n l\u00e0 t\u1ea1o ra m\u1ed9t l\u1ed1i t\u1eaft tr\u1ef1c quan; b\u1ea1n \u0111ang x\u00e2y d\u1ef1ng m\u1ed9t t\u00e0i s\u1ea3n ti\u1ebfp th\u1ecb c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c. M\u00e3 QR c\u00f3 th\u01b0\u01a1ng hi\u1ec7u c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c nhi\u1ec1u l\u01b0\u1ee3t qu\u00e9t h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c phi\u00ean b\u1ea3n \u0111en tr\u1eafng \u0111\u01a1n gi\u1ea3n v\u00ec ch\u00fang b\u00e1o hi\u1ec7u t\u00ednh h\u1ee3p ph\u00e1p v\u00e0 s\u1ef1 tin c\u1eady cho ng\u01b0\u1eddi d\u00f9ng. \u0110\u1ec3 duy tr\u00ec kh\u1ea3 n\u0103ng qu\u00e9t trong khi x\u00e2y d\u1ef1ng th\u01b0\u01a1ng hi\u1ec7u, b\u1ea1n n\u00ean th\u00eam logo v\u00e0o m\u00e3 QR<\/a> s\u1eed d\u1ee5ng m\u1ee9c \u0111\u1ed9 s\u1eeda l\u1ed7i cao, cho ph\u00e9p m\u00e3 v\u1eabn ho\u1ea1t \u0111\u1ed9ng ngay c\u1ea3 khi m\u1ed9t ph\u1ea7n c\u1ee7a m\u1eabu b\u1ecb che khu\u1ea5t.<\/p>\n\n\n\n

H\u01a1n n\u1eefa, c\u00e1c n\u1ec1n t\u1ea3ng chuy\u00ean nghi\u1ec7p cung c\u1ea5p b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec3 ph\u00e2n t\u00edch th\u1eddi gian th\u1ef1c. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n ch\u1ec9nh s\u1eeda m\u00e3 QR<\/a> \u0111\u1ec3 xem c\u00f3 bao nhi\u00eau ng\u01b0\u1eddi \u0111\u00e3 t\u01b0\u01a1ng t\u00e1c v\u1edbi n\u1ed9i dung c\u1ee7a b\u1ea1n, v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd c\u1ee7a h\u1ecd v\u00e0 th\u1eadm ch\u00ed c\u1ea3 th\u1eddi gian trong ng\u00e0y h\u1ecd qu\u00e9t. Nh\u1eefng th\u00f4ng tin chi ti\u1ebft n\u00e0y l\u00e0 v\u00f4 gi\u00e1 \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a c\u00e1c chi\u1ebfn d\u1ecbch, cho ph\u00e9p b\u1ea1n v\u01b0\u1ee3t qua vi\u1ec7c \u0111o\u00e1n m\u00f2 v\u00e0 b\u1eaft \u0111\u1ea7u \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean d\u1eef li\u1ec7u \u0111\u1ec3 ph\u00e1t tri\u1ec3n doanh nghi\u1ec7p c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n
T\u00f4i c\u00f3 th\u1ec3 thay \u0111\u1ed5i h\u00ecnh \u1ea3nh sau khi m\u00e3 QR \u0111\u00e3 \u0111\u01b0\u1ee3c in kh\u00f4ng?<\/strong>

C\u00f3, n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng m\u00e3 QR \u0111\u1ed9ng. C\u00e1c m\u00e3 n\u00e0y tr\u1ecf \u0111\u1ebfn m\u1ed9t URL ng\u1eafn m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ebfn m\u1ed9t h\u00ecnh \u1ea3nh m\u1edbi b\u1ea5t c\u1ee9 l\u00fac n\u00e0o m\u00e0 kh\u00f4ng c\u1ea7n in l\u1ea1i t\u00e0i li\u1ec7u ti\u1ebfp th\u1ecb c\u1ee7a m\u00ecnh.<\/p> <\/div>

K\u00edch th\u01b0\u1edbc qu\u00e9t t\u1ed1i thi\u1ec3u cho m\u00e3 QR h\u00ecnh \u1ea3nh l\u00e0 bao nhi\u00eau?<\/strong>

\u0110\u1ed1i v\u1edbi vi\u1ec7c qu\u00e9t t\u1ea7m g\u1ea7n ti\u00eau chu\u1ea9n tr\u00ean c\u00e1c v\u1eadt ph\u1ea9m nh\u01b0 danh thi\u1ebfp ho\u1eb7c t\u1edd r\u01a1i, k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb l\u00e0 0,8 x 0,8 inch (2 x 2 cm).<\/p> <\/div>

Vi\u1ec7c th\u00eam logo c\u00f3 l\u00e0m cho m\u00e3 QR kh\u00f3 qu\u00e9t h\u01a1n kh\u00f4ng?<\/strong>

N\u00f3 c\u00f3 th\u1ec3 x\u1ea3y ra n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1ch. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng qu\u00e9t, b\u1ea1n n\u00ean s\u1eed d\u1ee5ng c\u00e1c m\u1ee9c s\u1eeda l\u1ed7i cao nh\u1ea5t (Q ho\u1eb7c H) v\u00e0 \u0111\u1ea3m b\u1ea3o logo kh\u00f4ng che ph\u1ee7 qu\u00e1 25-30% t\u1ed5ng di\u1ec7n t\u00edch.<\/p> <\/div> <\/div>\n\n\n\n

S\u1eed d\u1ee5ng m\u00e3 QR \u0111\u1ec3 chia s\u1ebb h\u00ecnh \u1ea3nh thu h\u1eb9p kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac v\u1eadt l\u00fd v\u00e0 s\u1ef1 ti\u1ec7n l\u1ee3i k\u1ef9 thu\u1eadt s\u1ed1. B\u1eb1ng c\u00e1ch ch\u1ecdn \u0111\u00fang \u0111\u1ecbnh d\u1ea1ng, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n cao v\u00e0 t\u1eadn d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng \u0111\u1ed9ng, b\u1ea1n t\u1ea1o ra tr\u1ea3i nghi\u1ec7m li\u1ec1n m\u1ea1ch cho ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed3ng th\u1eddi thu \u0111\u01b0\u1ee3c nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 h\u00e0nh vi c\u1ee7a h\u1ecd.<\/p>\n\n\n\n

\n

T\u1ed1i \u01b0u h\u00f3a vi\u1ec7c chia s\u1ebb h\u00ecnh \u1ea3nh c\u1ee7a b\u1ea1n ngay h\u00f4m nay<\/strong> Tham gia c\u00f9ng h\u01a1n 20.000 th\u01b0\u01a1ng hi\u1ec7u \u0111ang s\u1eed d\u1ee5ng Pageloot \u0111\u1ec3 t\u1ea1o m\u00e3 QR chuy\u00ean nghi\u1ec7p, c\u00f3 th\u01b0\u01a1ng hi\u1ec7u. T\u1ea1o m\u00e3 QR h\u00ecnh \u1ea3nh \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n<\/a> v\u00e0 b\u1eaft \u0111\u1ea7u \u0111o l\u01b0\u1eddng m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng t\u00e1c c\u1ee7a b\u1ea1n theo th\u1eddi gian th\u1ef1c.<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"

Chuy\u1ec3n \u0111\u1ed5i b\u1ea5t k\u1ef3 h\u00ecnh \u1ea3nh n\u00e0o th\u00e0nh m\u00e3 QR c\u00f3 th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c \u0111\u1ec3 truy c\u1eadp k\u1ef9 thu\u1eadt s\u1ed1 t\u1ee9c th\u00ec. T\u00ecm hi\u1ec3u c\u00e1ch t\u1ea3i l\u00ean, t\u00f9y ch\u1ec9nh v\u00e0 theo d\u00f5i m\u00e3 h\u00ecnh \u1ea3nh c\u1ee7a b\u1ea1n \u0111\u1ec3 c\u1ea3i thi\u1ec7n m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng t\u00e1c.<\/p>","protected":false},"author":17,"featured_media":53191,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-2139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-to"],"yoast_head":"\nHow to Create a QR Code from an Image<\/title>\n<meta name=\"description\" content=\"Convert any image into a scannable QR code for instant digital access. 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V\u1edbi chuy\u00ean m\u00f4n s\u00e2u s\u1eafc k\u00e9o d\u00e0i h\u01a1n 5 n\u0103m ch\u1ec9 v\u1ec1 m\u00e3 QR, Siim \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t chuy\u00ean gia v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y trong l\u0129nh v\u1ef1c n\u00e0y. Anh \u1ea5y \u0111\u00e3 c\u00f3 nh\u1eefng b\u01b0\u1edbc ti\u1ebfn \u0111\u00e1ng k\u1ec3 trong vi\u1ec7c t\u1eadn d\u1ee5ng c\u00f4ng ngh\u1ec7 QR \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a v\u00e0 t\u0103ng c\u01b0\u1eddng c\u00e1c t\u01b0\u01a1ng t\u00e1c k\u1ef9 thu\u1eadt s\u1ed1. Cu\u1ed9c h\u00e0nh tr\u00ecnh c\u1ee7a anh kh\u00f4ng ch\u1ec9 b\u1eaft \u0111\u1ea7u \u1edf \u0111\u00e2y. Siim c\u00f3 n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt s\u1ed1 s\u00e2u r\u1ed9ng v\u1edbi h\u01a1n 10 n\u0103m kinh nghi\u1ec7m v\u1eefng ch\u1eafc trong l\u0129nh v\u1ef1c Ph\u1ea7n m\u1ec1m d\u01b0\u1edbi d\u1ea1ng d\u1ecbch v\u1ee5 (SaaS), m\u1ed9t minh ch\u1ee9ng cho ki\u1ebfn th\u1ee9c s\u00e2u r\u1ed9ng c\u1ee7a \u00f4ng v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt s\u1ed1.","sameAs":["https:\/\/www.linkedin.com\/in\/siim-tiigimagi\/"]},{"@type":"Question","@id":"https:\/\/pageloot.com\/how-to\/qr-code-from-image\/#faq-question-9a3a1b860698","position":1,"url":"https:\/\/pageloot.com\/how-to\/qr-code-from-image\/#faq-question-9a3a1b860698","name":"T\u00f4i c\u00f3 th\u1ec3 thay \u0111\u1ed5i h\u00ecnh \u1ea3nh sau khi m\u00e3 QR \u0111\u00e3 \u0111\u01b0\u1ee3c in kh\u00f4ng?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, if you use a dynamic QR code. These codes point to a short URL that you can redirect to a new image at any time without needing to reprint your marketing materials.","inLanguage":"vi"},"inLanguage":"vi"},{"@type":"Question","@id":"https:\/\/pageloot.com\/how-to\/qr-code-from-image\/#faq-question-d27c29bedf5e","position":2,"url":"https:\/\/pageloot.com\/how-to\/qr-code-from-image\/#faq-question-d27c29bedf5e","name":"K\u00edch th\u01b0\u1edbc qu\u00e9t t\u1ed1i thi\u1ec3u cho m\u00e3 QR h\u00ecnh \u1ea3nh l\u00e0 bao nhi\u00eau?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"For standard close-range scanning on items like business cards or flyers, the minimum recommended size is 0.8 x 0.8 inches (2 x 2 cm).","inLanguage":"vi"},"inLanguage":"vi"},{"@type":"Question","@id":"https:\/\/pageloot.com\/how-to\/qr-code-from-image\/#faq-question-d761e5d1bb61","position":3,"url":"https:\/\/pageloot.com\/how-to\/qr-code-from-image\/#faq-question-d761e5d1bb61","name":"Vi\u1ec7c th\u00eam logo c\u00f3 l\u00e0m cho m\u00e3 QR kh\u00f3 qu\u00e9t h\u01a1n kh\u00f4ng?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"It can if not done correctly. To ensure scannability, you should use the highest error correction levels (Q or H) and ensure the logo does not cover more than 25-30% of the total area.","inLanguage":"vi"},"inLanguage":"vi"}]}},"_links":{"self":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/2139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/comments?post=2139"}],"version-history":[{"count":3,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/2139\/revisions"}],"predecessor-version":[{"id":53963,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/2139\/revisions\/53963"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/media\/53191"}],"wp:attachment":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/media?parent=2139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/categories?post=2139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/tags?post=2139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}