Pixels: Lub Tsev Blocks
Txhua daim duab digital yog ib daim phiaj ntawm cov xim me me hu ua pixels. Thaum peb hais cov duab yog 1920 × 1080, peb txhais tau tias nws muaj 1920 pixels thoob plaws thiab 1080 pixels siab - txog 2 lab pixels tag nrho. Qhov no yog cov ntaub ntawv tiag tiag hauv koj cov ntaub ntawv duab.
Ntau pixels feem ntau txhais tau tias nthuav dav ntxiv. Ib daim duab 4K (3840 × 2160) muaj plaub npaug ntawm pixels ntawm 1080p, yog li nws tuaj yeem pom cov ntsiab lus zoo dua. Pixels yog kiag li - lawv tsis hloov raws li koj saib cov duab.
PPI - Pixels Ib Nti
PPI yog dab tsi?
PPI (pixels ib nti) piav qhia tias pixels ntom ntom npaum li cas thaum cov duab tso tawm lossis luam tawm. Nws yog kev sib raug zoo ntawm pixel suav thiab lub cev loj. Ib daim duab uas yog 300 pixels dav ntawm 300 PPI yuav luam 1 nti dav.
PPI rau Screens
Feem ntau cov ntxaij vab tshaus tso tawm ntawm 72-144 PPI, txawm hais tias cov duab siab-DPI (Retina, 4K saib) tuaj yeem yog 200+ PPI. Rau kev siv lub vev xaib, 72-96 PPI feem ntau txaus. Qhov tseem ceeb tshaj yog tag nrho pixel suav (piv txwv li, 1920 × 1080 rau HD).
PPI rau Luam Ntawv
Kev luam ntawv feem ntau yuav tsum tau 300 PPI kom ntse, ua haujlwm tau zoo. Ntawm 150 PPI, cov duab yuav zoo li mos; ntawm 300 PPI, cov ntsiab lus zoo nyob ruaj khov. Cov ntawv xov xwm, cov ntawv qhia, thiab cov khoom ntim khoom feem ntau qhia txog 300 PPI.
DPI - Dots Per Inch
DPI yog dab tsi?
DPI (dots per inch) technically hais txog lub tshuab luam ntawv tso zis - pes tsawg tus number case dots lub tshuab luam ntawv qhov chaw ib nti. Hauv kev xyaum, ntau tus neeg siv DPI thiab PPI sib hloov thaum tham txog cov duab daws teeb meem. Rau cov duab digital, PPI yog lo lus raug; DPI siv rau cov txheej txheem luam ntawv.
Thaum DPI teeb meem
Thaum koj xa cov ntaub ntawv mus rau lub khw luam ntawv, lawv yuav nug txog "300 DPI" - lawv feem ntau txhais tau tias 300 PPI. Koj cov duab metadata tuaj yeem khaws tus nqi PPI / DPI uas qhia software loj npaum li cas los tso saib lossis luam tawm cov duab ntawm qhov loj me.
Quick Reference Table
| Lub sij hawm | Lub ntsiab lus | Siv Rau |
|---|---|---|
| Pixels | Cov ntaub ntawv qhov ntev (piv txwv li, 1920 × 1080) | Cov ntaub ntawv loj, lub vev xaib, tso saib |
| PPI | Pixels ib nti thaum tso tawm / luam tawm | Print quality, lub cev loj |
| DPI | Lub tshuab luam ntawv tso zis ceev (feem ntau siv zoo li PPI) | Luam ntawv specifications |
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Vim li cas thiaj daws teeb meem rau kev tshem tawm tom qab
Input daws teeb meem
Cov duab daws teeb meem siab dua muab AI cov ntaub ntawv ntau dua los ua haujlwm nrog. Cov npoo zoo (cov plaub hau, plaub hau, lace) yooj yim dua los kuaj xyuas thaum muaj ntau pixels txhais lawv. Cov duab daws teeb meem tsawg tuaj yeem tsim lub ntsej muag tsis meej lossis tsis meej.
Cov zis zoo
QuickRemove khaws cia qhov kev daws teeb meem qub ntawm koj cov tswv yim. Yog tias koj pub nws 4K duab, koj tau txais 4K pob tshab tso zis. Cov qib pub dawb txhawb txog li 1080p; Basic thiab Pro txhawb 4K thiab tshaj. Txhawm rau luam tawm, pib nrog cov duab siab daws teeb meem.
Upscaling
Yog tias koj qhov chaw nyob qis qis, QuickRemove Pro suav nrog AI upscaling kom nce kev daws teeb meem ua ntej lossis tom qab tshem tawm tom qab. Qhov no pab thaum koj xav tau cov txiaj ntsig loj dua rau cov ntawv luam lossis cov ncauj lus kom ntxaws.
Common Resolution Scenarios
Web & Social Media
1080p (1920 × 1080) yog txaus rau feem ntau siv web. Instagram, Facebook, thiab feem ntau cov vev xaib compress lawm. QuickRemove's dawb tier tswj qhov no zoo kawg nkaus.
Cov khoom lag luam e-lag luam duab
Amazon pom zoo tsawg kawg yog 1000 pixels ntawm sab ntev; 2000+ zoom zoom. QuickRemove Basic thiab Pro txhawb 4K rau kev txiav cov khoom lag luam.
Luam tawm
A 5 "× 7" luam tawm ntawm 300 PPI xav tau 1500 × 2100 pixels. Npaj ua ntej - ntes lossis nce mus rau qhov kev daws teeb meem zoo ua ntej tshem cov keeb kwm yav dhau los.
Cov duab Passport & ID
Tsoom fwv qhia meej qhov ntev (piv txwv li, 35mm × 45mm ntawm 300 DPI). QuickRemove's passport wizard pab koj tso cov duab ua raws.
Yuav ua li cas QuickRemove Handles daws teeb meem
QuickRemove yog Windows desktop app uas ua cov duab hauv zos. Nws txhawb PNG, JPG, WEBP, BMP, GIF, TIFF, thiab HEIC ntawm lawv cov kev daws teeb meem ib txwm muaj. Cov qib pub dawb tso tawm mus txog 1080p; Basic thiab Pro txhawb 4K thiab siab dua. Kev daws teeb meem metadata (PPI / DPI) yog khaws cia thaum txhawb nqa los ntawm hom ntawv xa tawm. Tsis muaj resampling lossis zoo poob tshwj tsis yog tias koj qhia meej meej resize.