Txheeb xyuas Kraft Daim Ntawv Sau Cov Ntawv Luam Ntawv Xim Distortion Cov Lus Qhia

Txheeb xyuas Kraft Daim Ntawv Nplaum Luam Ntawv Xim distortion cov ntsiab lus

Tam sim no, muaj ntau txheej txheej ntawm kev tswj cov xim hauv kev lag luam luam ntawv, uas muaj kev tswj xyuas qee yam ntawm cov xim luam ntawv. Txawm li cas los xij, nyob rau hauv cov neeg siv khoom luam tawm tam sim no, lawv cov kev xav tau ntawm cov xim yog qhov hnyav zuj zus. Txhawm rau kom cov kev pabcuam luam ntawv zoo dua, nws yog qhov tsim nyog rau peb kom nkag siab txog cov ntsiab lus tseem ceeb uas ua rau muaj kev cuam tshuam xim thiab kev sib cais ntawm kev tsis sib haum xeeb.

Ua ntej, lub ntsiab tseem ceeb uas ua rau cov xim distortion

1. Kev txo cov xim ua rau xim distortion

Niaj hnub nimno luam ntawv feem ntau siv C, M, Y, K plaub-xim inks los tsim cov xim, vim hais tias ntawm purity ntawm tus number case nws tus kheej, yog li overprinting yuav tsim xim distortion.

2. Kev sib cais xim ua rau xim distortion

Kev luam ntawv feem ntau yog siv C, M, Y, K plaub-xim number case los luam xim, thiab cov khoom siv digital los sau cov ntaub ntawv duab hauv computer feem ntau yog R, G, B cov ntaub ntawv, yog li ua ntej luam ntawv thiab platemaking yuav tsum hloov cov ntaub ntawv duab rau hauv. C, M, Y, K hom, uas yog, kev sib cais xim. Lub npe hu ua "kev sib cais xim" yog kom decompose cov ntaub ntawv xim ntawm txhua pixel ntawm daim duab (feem ntau R, G, B xim cov ntaub ntawv) rau hauv cov ntaub ntawv xim uas haum rau luam C, M, Y, K hom. Cov ntaub ntawv xim yuav ploj hauv cov txheej txheem ntawm kev sib cais xim. Hauv kev sib cais xim, tsuas yog raws li tus lej luam ntawv, ntawv thiab lwm yam kev luam ntawv tsim nyog, kev teeb tsa raug ntawm cov xim sib cais (xws li kev teeb tsa ntawm tus nqi dot expansion, grey tshuav nyiaj li cas, qib phaj dub, thiab lwm yam), nws yog ib qho ua tau. kom tso tawm cov xim zoo sib cais, kom deb li deb tau kom txo tau cov ntaub ntawv xim tsis zoo.

3. Muaj xim txawv ntawm cov ntawv sau qub

Thawj cov duab luam tawm feem ntau tau los ntawm kev yees duab. Rau cov duab qub, ntxiv rau cov xim distortion tshwm sim los ntawm kev ua haujlwm tsis zoo hauv cov txheej txheem ntawm kev tua, vim tias cov xim yog rov tsim dua los ntawm cov ntaub ntawv xim xws li cov ntaub ntawv xim, thiab xim attenuation yooj yim tshwm sim, yog li nws kuj yuav ua rau cov xim distortion. ntawm daim duab. Tsis tas li ntawd, nrog cov koob yees duab tsis tu ncua ntawm cov koob yees duab digital, cov ntawv sau cov duab digital ntau dua thiab ntau dua, thiab cov koob yees duab digital ntawm tus neeg teb xov tooj cov kev xav tau zoo heev, vim tias cov neeg ua haujlwm tsis zoo, cov duab txhaj tshuaj yog qhov tsis zoo, cov duab fuzzy thiab lwm yam teeb meem, ua rau cov xim qub distortion.

4. Xim distortion tshwm sim los ntawm kev luam theej duab

Cov duab ntom ntom ntawm thawj daim duab yog txuas ntxiv, yog li cov ntaub ntawv duab yuav tsum tau muab sau rau hauv lub computer. Thaum cov khoom siv scanning siv los luam theej duab daim duab, cov duab yuav tsum tau muab faib ua cov pixels tsis tu ncua, thiab R, G thiab B cov ntaub ntawv ntawm txhua pixel ntawm cov ntawv sau yog sau los ntawm taw tes thiab kab los ntawm kab. Hauv cov txheej txheem scanning, nws yuav ua rau poob ntawm pixel xim cov ntaub ntawv, thiab cov duab ua raws li cov ntaub ntawv khaws tseg, tag nrho cov haujlwm ntawm cov xim kuj tau ua raws li qhov no, thiab tsis tuaj yeem nce cov ntaub ntawv xim ntawm cov ntaub ntawv. duab. Yog li ntawd, rau thawj daim duab, scanning yog qhov txuas tseem ceeb hauv kev ua cov duab, kev ua haujlwm tsis raug yuav ua rau cov duab xim distortion.

Ob, yuav ua li cas kom paub qhov txawv xim distortion

Tom qab nkag siab txog cov ntsiab lus tseem ceeb ntawm cov xim distortion, yuav ua li cas nrhiav cov xim distortion hauv cov txheej txheem tsim khoom tiag tiag yog qhov tseem ceeb.

1. Thawj impression benchmark txoj kev

Tib neeg lub qhov muag muaj qee yam hloov tau rau xim. Rau cov duab me ntsis distorted, rov saib dua yuav ua rau tsis muaj peev xwm lees paub. Yog li ntawd, thaum txiav txim siab lub hav zoov ntawm cov xim distortion, nws yog ib qho tseem ceeb uas yuav tsum tau siv thawj glance lub tswv yim kom tshem tawm cov kev txwv ntawm tib neeg cov xim tsis pom kev.

2. Tsis siv neeg xim siv txoj kev

Muaj ntau yam xim nruab nrab hauv lub neej, xws li dub, dawb, grey thiab lwm yam. Lawv yog lub zero point ntawm cov xim nyob rau hauv lub ntiaj teb muaj yeeb yuj, thiab peb tuaj yeem siv lawv los ua lub hauv paus taw tes kom paub qhov txawv xim distortion.

3. Daim tawv nqaij xim siv txoj kev

Cov xim ntawm daim tawv nqaij yog cov xim paub tshaj plaws rau tib neeg. Tag nrho cov dluab ntawm cov cim, tshwj xeeb tshaj yog cov dominated los ntawm portraits ntawm cov cim, yuav siv tau raws li lub hauv paus rau kev txheeb xyuas cov xim distortion raws li daim tawv nqaij xim. Tsis muaj teeb meem ntawm daim tawv nqaij daj, tawv nqaij dawb lossis tawv tawv dub, lawv cov tawv nqaij muaj txoj cai, uas yog tag nrho cov ntshav. Ntawd yog, muaj xim liab hauv daj, liab dawb lossis liab hauv dub. Yog tias xim ntawm daim duab hauv daim duab yog daj, nws yuav ua rau tib neeg muaj kev mob siab. Nyob rau hauv ib txwm muaj xwm txheej, txawm tias cov tawv nqaij xim ntawm tus neeg nyob rau hauv daim duab yog yellowish tiag tiag, kev kho xim yuav tsum tau kho rau cov ntshav, uas yog, daj nrog liab.

Hauv kev lag luam luam ntawv, yog tias cov ntsiab lus tseem ceeb thiab kev sib cais ntawm kev tsis sib haum xeeb tau ua tiav, tom qab ntawd cov xim luam ntawv tuaj yeem tuav tau zoo, thiab ua tiav cov txiaj ntsig hauv cov neeg siv khoom lub siab tuaj yeem ua tiav smoothly. Yog li ntawd, cov xim luam ntawv distortion tuav peb tsis tuaj yeem tsis quav ntsej.