Cov duab daws teeb meem yog tus naj npawb ntawm dots lossis pixels ib nti ntawm thaj chaw. Cov kev xaiv no txiav txim siab seb daim duab yuav zoo li cas thaum luam tawm. Lawm, ib daim duab uas muaj 72 pixels hauv ib nti yuav yog qhov tsis zoo tshaj li daim duab nrog daws teeb meem ntawm 300 dpi.
Nws tsim nyog sau cia tias ntawm lub monitor koj yuav tsis pom qhov sib txawv ntawm kev daws teeb meem, peb tsuas yog tham txog kev luam ntawv.
Txhawm rau kom tsis txhob muaj kev nkag siab yuam kev, peb txhais cov ntsiab lus uas dot thiab pixel, vim tias, hloov ntawm cov qauv txhais "ppi" (pixels ib nti), hauv Photoshop siv "dpi" (dpi). Pixel - taw tes rau tus saib, thiab dot - qhov no yog dab tsi tso lub tshuab luam ntawv rau ntawm ntawv. Peb yuav siv ob qho tib si, vim tias qhov no nws tsis muaj teeb meem.
Daws teeb meem duab
Qhov loj npaum li cas ntawm daim duab, uas yog, cov uas peb tau txais tom qab luam ntawv, ncaj qha nyob ntawm kev daws teeb meem. Piv txwv li, peb muaj cov duab nrog qhov ntev ntawm 600x600 pixels thiab kev daws teeb meem ntawm 100 dpi. Qhov loj me tiag yuav yog 6x6 ntiv tes.
Txij li thaum peb tab tom tham txog kev luam ntawv, peb yuav tsum nce qhov kev daws teeb meem mus rau 300dpi. Tom qab cov kauj ruam no, cov ntawv luam tawm yuav tsawg dua, txij li ib nti peb sim "haum" cov ntaub ntawv ntxiv. Peb muaj tsawg tsawg ntawm cov pixels thiab lawv haum hauv thaj chaw me. Raws li, tam sim no qhov loj ntawm daim duab yog 2 nti.
Hloov cov kev daws teeb meem
Peb tau dhau los ntawm txoj haujlwm nce ntxiv kev daws teeb meem ntawm kev yees duab los npaj nws rau kev luam ntawv. Qhov zoo tshaj qhov no yog qhov tseem ceeb.
- Thauj duab rau Photoshop thiab mus rau cov ntawv qhia zaub mov "Duab - Duab loj".
- Hauv chav tsev loj me me, peb txaus siab rau ob lub lag luam: "Dimension" thiab "Luam loj"Cov. Cov thawj block qhia peb tias muaj pes tsawg lub pixels nyob hauv daim duab, thiab lub thib ob - kev daws teeb meem tam sim no thiab qhov tseeb sib xws loj.
Raws li koj tuaj yeem pom, qhov loj ntawm cov luam ntawv yog 51.15 x 51.15 cm, uas yog ntau heev, qhov no yog daim ntawv loj me me.
- Cia peb sim nce cov kev daws teeb meem mus rau 300 pixels ib nti thiab saib qhov tshwm sim.
Qhov ntsuas qhov loj me tau nce ntau dua peb zaug. Qhov no yog vim muaj qhov tseeb tias qhov kev zov me nyuam cia li txuag lub sijhawm duab loj. Ntawm lub hauv paus no, peb tus kws tsim duab Photoshop thiab nce tus naj npawb ntawm pixels nyob rau hauv daim ntawv, thiab coj lawv tawm ntawm lub taub hau. Qhov no entails tsis muaj qhov zoo, zoo li nrog cov duab txhim kho kom zoo.
Txij li thaum compression yav dhau los siv rau daim duab Jpeg, artifacts cov yam ntxwv ntawm cov hom ntawv tau tshwm sim rau nws, feem ntau pom tau hauv cov plaub hau. Qhov no tsis haum peb txhua.
- Cov txheej txheem yooj yim yuav pab peb kom tsis txhob poob qis hauv qhov tsis zoo. Nws yog txaus kom nco ntsoov thaum pib loj ntawm daim duab.
Ntxiv qhov kev daws teeb meem, thiab tom qab ntawd sau ntawv hais txog qhov tseem ceeb thawj zaug hauv cov qhov ntev.
Raws li koj tuaj yeem pom, qhov loj me ntawm luam ntawv kuj tau hloov pauv, tam sim no thaum luam ntawv, peb tau txais daim duab me dua 12x12 cm nyob rau hauv zoo.
Daws Teeb Meem Xaiv
Lub hauv paus ntsiab lus ntawm kev xaiv daws teeb meem yog raws li hauv qab no: cov neeg saib ze ze rau cov duab, tus nqi siab yuav tsum.
Rau cov ntawv luam tawm (daim npav ua lag luam, phau ntawv me, thiab lwm yam), muaj qee kis, kev tso cai yam tsawg kawg 300 dpi
Rau cov ntawv tshaj tawm thiab cov ntawv tshaj tawm uas cov neeg saib yuav saib ntawm qhov deb ntawm kwv yees li 1 - 1.5 m lossis ntau dua, qhov kev nthuav dav tsis tas yuav tsum, yog li koj tuaj yeem txo tus nqi rau 200 - 250 pixels ib nti
Khw cov qhov rai, los ntawm tus kws saib xyuas cov neeg nyob deb ntxiv, tuaj yeem kho cov duab nrog cov kev daws teeb meem 150 dpi
Cov ntawv tshaj tawm loj loj, nyob ntawm qhov kev ncua deb ntawm tus saib, dua li pom lawv luv luv, yuav raug nqi heev 90 dots ib nti.
Rau cov duab npaj rau cov lus lossis luam tawm hauv Is Taws Nem, txaus 72 dpi
Lwm qhov tseem ceeb thaum xaiv kev daws teeb meem yog qhov hnyav ntawm cov ntawv. Feem ntau, cov neeg tsim qauv tsis cuam tshuam cov ntsiab lus ntawm pixels ib nti, uas ua rau kom muaj qhov sib npaug ntawm qhov hnyav ntawm daim duab. Noj, piv txwv li, chij nrog qhov loj me ntawm 5x7 m thiab kev daws teeb meem ntawm 300 dpi. Nrog rau cov kev txwv no, daim ntawv yuav dhau los ua kwv yees li 60000x80000 pixels thiab yuav "rub" txog 13 GB.
Txawm hais tias kho vajtse muaj peev xwm ntawm koj lub khoos phis tawm rau koj los ua haujlwm nrog cov ntawv ntawm qhov loj me no, lub tshuab luam ntawv tsis zoo li yuav pom zoo coj nws mus ua haujlwm. Nyob rau hauv txhua rooj plaub, nws yuav tsim nyog los nug txog qhov yuav tsum tau muaj.
Qhov no yog txhua yam uas tuaj yeem hais txog kev daws teeb meem ntawm cov duab, yuav ua li cas hloov nws, thiab koj yuav ntsib teeb meem dab tsi. Ua tib zoo saib xyuas seb qhov kev daws teeb meem thiab qhov zoo ntawm cov duab hauv lub vijtsam saib thiab thaum luam ntawv cuam tshuam, nrog rau ntau npaum li cas dots ib nti yuav txaus rau ntau lub sijhawm.
