{"id":615,"date":"2017-06-08T13:13:41","date_gmt":"2017-06-08T06:13:41","guid":{"rendered":"https:\/\/vannamit.com\/?p=615"},"modified":"2017-06-08T13:13:41","modified_gmt":"2017-06-08T06:13:41","slug":"giam-dung-luong-anh-hon-90-nhung-khong-lam-thay-doi-chat-luong-anh","status":"publish","type":"post","link":"https:\/\/khowordpress.com\/vannamit\/giam-dung-luong-anh-hon-90-nhung-khong-lam-thay-doi-chat-luong-anh\/","title":{"rendered":"Gi\u1ea3m dung l\u01b0\u1ee3ng \u1ea3nh h\u01a1n 90% nh\u01b0ng kh\u00f4ng l\u00e0m thay \u0111\u1ed5i ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh"},"content":{"rendered":"

T\u1ed1i \u01b0u \u1ea3nh tr\u01b0\u1edbc khi chia s\u1ebb v\u1edbi b\u1ea1n b\u00e8 qua email, facebook, forum hay \u0111\u1ec3 t\u0103ng t\u1ed1c 1 website\u2026 l\u00e0 vi\u1ec7c n\u00ean l\u00e0m \u0111\u1ec3 gi\u1ea3m dung l\u01b0\u1ee3ng \u1ea3nh v\u00e0 \u0111\u00e2y l\u00e0 \u0111i\u1ec1u r\u1ea5t c\u1ea7n thi\u1ebft<\/p>\n

\u00a0\"nen-anh-01\"<\/div>\n
\n

Hi\u1ec7n c\u00f3 r\u1ea5t nhi\u1ec1u ph\u1ea7n m\u1ec1m gi\u00fap b\u1ea1n l\u00e0m n\u00e9n\u00a0\u1ea3nh<\/a>\u00a0nh\u01b0ng \u0111a ph\u1ea7n \u0111\u1ec1u l\u00e0 c\u00e1c ph\u1ea7n m\u1ec1m c\u00e0i \u0111\u1eb7t v\u00e0o m\u00e1y. N\u1ebfu kh\u00f4ng th\u00edch nh\u01b0 th\u1ebf b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 t\u1ed1i \u01b0u \u1ea3nh tr\u1ef1c tuy\u1ebfn. V\u00e0 trong b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u 3 d\u1ecbch v\u1ee5 t\u1ed1i \u01b0u \u1ea3nh online v\u1edbi nhi\u1ec1u ch\u1ee9c n\u0103ng r\u1ea5t d\u1ec5 s\u1eed d\u1ee5ng, trong \u0111\u00f3 c\u00f3 d\u1ecbch v\u1ee5 gi\u1ea3m dung l\u01b0\u1ee3ng \u1ea3nh l\u00ean t\u1edbi 90% so v\u1edbi \u1ea3nh g\u1ed1c.<\/p>\n

1\/ Compressnow<\/a><\/strong>:<\/p>\n

Compressnow<\/strong>\u00a0\u0111\u00e2y l\u00e0 d\u1ecbch v\u1ee5 m\u00ecnh th\u1ea5y r\u1ea5t t\u1ed1t trong vi\u1ec7c n\u00e9n \u1ea3nh v\u00e0 h\u01a1n n\u1eefa r\u1ea5t d\u1ec5 d\u00e0ng s\u1eed d\u1ee5ng. Compressnow l\u00e0 m\u1ed9t d\u1ecbch v\u1ee5 n\u00e9n \u1ea3nh mi\u1ec5n ph\u00ed, c\u00e1c \u0111\u1ecbnh d\u1ea1ng Compressnow hi\u1ec7n h\u1ed7 tr\u1ee3 l\u00e0 JPG, GIF, JPEG, PNG. \u00a0B\u1ea1n kh\u00f4ng c\u1ea7n \u0111\u0103ng k\u00fd t\u00e0i kho\u1ea3n, ch\u1ec9 vi\u1ec7c upload \u1ea3nh t\u1eeb m\u00e1y l\u00ean v\u00e0 ch\u1ecdn t\u1ec9 l\u1ec7 n\u00e9n. Sau \u0111\u00f3 nh\u1ea5n Compress Now \u0111\u1ec3 b\u1eaft \u0111\u1ea7u n\u00e9n \u1ea3nh. Dung l\u01b0\u1ee3ng \u1ea3nh t\u1ed1i \u0111a website cho upload l\u00ean l\u00e0 9 MB.<\/p>\n

\"nen-anh-60\"<\/p>\n

2\/ Kraken<\/a><\/strong> :<\/p>\n

Kraken h\u1ed7 tr\u1ee3 2 c\u00e1ch upload \u1ea3nh l\u00ean, m\u1ed9t l\u00e0 up tr\u1ef1c ti\u1ebfp t\u1eeb m\u00e1y t\u00ednh, hai l\u00e0 up t\u1eeb m\u1ed9t URL \u1ea3nh c\u00f3 s\u1eb5n tr\u00ean m\u1ea1ng. \u0110\u1ec3 upload t\u1eeb m\u00e1y t\u00ednh, b\u1ea1n ch\u1ec9 vi\u1ec7c k\u00e9o 1 hay nhi\u1ec1u b\u1ee9c \u1ea3nh v\u00e0o khung \u201cDrop your files here\u201d. Ch\u1edd \u00edt gi\u00e2y \u0111\u1ec3 Kraken upload \u1ea3nh l\u00ean.<\/p>\n

\"nen-anh-00\"<\/p>\n

Kraken hi\u1ec7n h\u1ed7 tr\u1ee3 2 ch\u1ebf \u0111\u1ed9 n\u00e9n:<\/p>\n

– \u00a0Lossless: ch\u1ebf \u0111\u1ed9 n\u00e0y s\u1ebd n\u00e9n \u1ea3nh \u0111\u1ebfn m\u1ee9c t\u1ed1i \u0111a m\u00e0 kh\u00f4ng h\u1ec1 thay \u0111\u1ed5i ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh.<\/p>\n

– Lossy: khi b\u1ea1n quy\u1ebft \u0111\u1ecbnh \u201chy sinh\u201d ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh \u0111i \u0111\u00f4i ch\u00fat, kh\u00f4ng \u0111\u00e1ng k\u1ec3 n\u1ebfu nh\u00ecn b\u1eb1ng m\u1eaft th\u01b0\u1eddng khi so s\u00e1nh 2 \u1ea3nh v\u1edbi nhau. Ch\u1ebf \u0111\u1ed9 n\u00e0y c\u00f3 th\u1ec3 n\u00e9n dung l\u01b0\u1ee3ng \u1ea3nh gi\u1ea3m \u0111\u1ebfn 90%, m\u1ed9t con s\u1ed1 r\u1ea5t \u1ea5n t\u01b0\u1ee3ng.<\/p>\n

Nh\u01b0 v\u1eady, t\u00f9y v\u00e0o nhu c\u1ea7u m\u00e0 b\u1ea1n ch\u1ecdn ch\u1ebf \u0111\u1ed9 cho ph\u00f9 h\u1ee3p.<\/p>\n

Sau khi thi\u1ebft l\u1eadp c\u00e1c l\u1ef1a ch\u1ecdn xong, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea3i \u1ea3nh \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u v\u1ec1 m\u00e1y. T\u1ea1i \u0111\u00e2y, b\u1ea1n s\u1ebd bi\u1ebft \u0111\u01b0\u1ee3c t\u1ec9 l\u1ec7 n\u00e9n bao nhi\u00eau ph\u1ea7n tr\u0103m, dung l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c n\u00e9n l\u00e0 bao nhi\u00eau\u2026<\/p>\n

3\/ WebResizer<\/a><\/strong>:<\/p>\n

WebResizer ch\u1ec9 h\u1ed7 tr\u1ee3 3 \u0111\u1ecbnh d\u1ea1ng JPE, GIF, PNG nh\u01b0ng b\u00f9 l\u1ea1i WebResizer cung c\u1ea5p nhi\u1ec1u t\u00ednh n\u0103ng t\u1ed1i \u01b0u \u1ea3nh c\u0169ng nh\u01b0 c\u00e1c hi\u1ec7u \u1ee9ng sau khi t\u1ed1i \u01b0u h\u01a1n 2 d\u1ecbch v\u1ee5 tr\u00ean.<\/p>\n

– Crop Image: c\u1eaft c\u00fap \u1ea3nh<\/p>\n

– Border: t\u1ea1o vi\u1ec1n<\/p>\n

– New size: resize \u1ea3nh<\/p>\n

– Rotate: xoay \u1ea3nh<\/p>\n

– Image quality: ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh<\/p>\n

\"nen-anh-02\"<\/p>\n

\n
\n

Hi\u1ec7n WebResizer cho upload \u1ea3nh t\u1ed1i \u0111a 5 MB.<\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 3 website cho ph\u00e9p n\u00e9n \u1ea3nh t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1t.<\/p>\n

B\u1ea1n mu\u1ed1n d\u00f9ng th\u00eam ph\u1ea7n m\u1ec1m cho chuy\u00ean nghi\u1ec7p c\u00f3 th\u1ec3 tham kh\u1ea3o b\u00e0i vi\u1ebft<\/p>\n

 <\/p>\n<\/div>\n<\/div>\n

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

T\u1ed1i \u01b0u \u1ea3nh tr\u01b0\u1edbc khi chia s\u1ebb v\u1edbi b\u1ea1n b\u00e8 qua email, facebook, forum hay \u0111\u1ec3 t\u0103ng t\u1ed1c 1 website\u2026 l\u00e0 vi\u1ec7c n\u00ean l\u00e0m \u0111\u1ec3…<\/p>\n","protected":false},"author":1,"featured_media":616,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,6,7],"tags":[],"class_list":["post-615","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-share","category-thu-thuat-may-tinh","category-thu-thuat-seo"],"_links":{"self":[{"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/posts\/615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/comments?post=615"}],"version-history":[{"count":0,"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/posts\/615\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/media\/616"}],"wp:attachment":[{"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/media?parent=615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/categories?post=615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/khowordpress.com\/vannamit\/wp-json\/wp\/v2\/tags?post=615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}