Metatropeas TIFF se PNG

Ti einai i metatropi TIFF se PNG?

I metatropi TIFF se PNG einai i diadikasia metaschimatismou enos epaggelmatkou raster format se ena katholiko format symvato me to web. To TIFF (Tagged Image File Format) anaptychthike to 1986 apo tis Aldus kai Microsoft gia tin apothikeusi eikonon kai scans ypsilis poiotitas. To PNG (Portable Network Graphics) emfanistike to 1996 os eleutheri enallaktiki tou GIF me veltiomeni sympiesi kai ypostirixi eikonon plires chromatos.

To TIFF chrisimopoieitai paradosiaka stin epaggelmatiki ektyposi, ekdosi, iatrika aperigraphia kai archeiothitisi eggrafon. To format ypostirizei pollaplous algorithmous sympiesis, epipeda, eggrafa pollaplou selidas kai ypsilo vathos chromatos mechri 48 bit. Omos, aftes akrivos oi dynatotites kanoun to TIFF avrochimo gia kathimerini chrisi - ta archeia katalamvanoun poly choro kai i ypostirixi se prorammatistes kai polla programmata einai periorismeni.

To PNG, apo tin alli, einai ideaiko gia to Internet kai tis synchrones efarmoges. To format ypostirizei diafaneia meso alfa kanalou, chrisimopoiei apotelesmatiki sympiesi choris apolies kai anoigei schedon pantou - apo prorammatistes mechri kinites syskeves. Taytochrota, to PNG diatireitai ypsili poiotita eikonas, kathistontas to mia eksaireti antikatatasi tou TIFF gia tis perisoteres ergasies.

I metatropi TIFF se PNG einai idiaiterai simantiki otan prepei na proetoimasete skannarismenous eggrafous gia dimosievsi sto web, na steilte eikones meso email choris apoleia poiotitas i na chrisimopoiisete grafika se web projects. O metaschimatismos meisonei to megethos tou archeiou diatirontas oles tis leptomereies tis archikis eikonas.

Technikoi Parametroi tis Metatropis

Pos Leitourgei i Metatropi

Kata ti metatropi TIFF se PNG, i eikona pernai apo stadio epexergasias:

Kata ti metatropi, i poiotita eikonas diatireitai pliros - to PNG chrisimopoiei sympiesi choris apolies, opote kathe pixel paramenei taytosimo me to prototypo. I moni allagi einai i methodos apothikeusis dedomenon, pou ginetai pio katholiki kai kompakt gia tous perisoterous typous eikonon.

Epexergasia TIFF Pollaplou Selidas

To format TIFF einai monadiko sto oti mporei na periechei pollaples selides se ena mono archeio - ayto chrisimopoieitai eyreos gia tin apothikeusi scans eggrafon pollaplou selidas. Kata ti metatropi se PNG, pou den ypostirizei pollaples selides, kathe selida metatrepetai se xechoristo archeio.

Ayto einai simantiko na ypologisete otan ergazeste me scans eggrafon: an anevasete ena TIFF pollaplou selidas, tha lavete polla xechorista archeia PNG - ena gia kathe selida. I arithmisi archeiou diatireitai ti seira selidon apo to archiko eggrafo.

Metatropi Chromatkou Chorou

To TIFF chrisimopoieitai sychna stin ektyposi kai mporei na periechei eikones se chromatiko choro CMYK (Cyan, Magenta, Yellow, Key/Black), velitistopoiimeno gia ektyposi. To PNG ypostirizei mono RGB (Red, Green, Blue), protypo gia othones kai web.

Kata ti metatropi, to CMYK metatrepetai aftomata se RGB. Ayto mporei na allaksei elafra tis apochroseis chromatos, idiaiterai se foteines kai koresmes perioches, kathoes i chromatiki gama tou RGB kai CMYK diaferei. Gia ergasies kritikis simasisas chromatos, synistaitai na elenchete to apotelisma meta ti metatropi.

Vathos Chromatos kai Diafaneia

To TIFF ypostirizei vathos chromatos mechri 48 bit (16 bit ana kanali), pou chrisimopoieitai stin epaggelmatiki fotografisi kai iatrika aperigraphia. To PNG ypostirizei episis 16 bit ana kanali, opote kata ti metatropi eikonon ypsilis poiotitas, olo to vathos chromatos diatireitai.

An to archiko TIFF periechei diafaneis perioches (alfa kanali), ayti metaferontai sosta sto PNG. Ayto einai idiaiterai simantiko gia logotypa, eikondia kai grafika opou mia diafanis basis einai aparaititi gia tin epikalypsi se alla stoicheia.

Synkrisi Format TIFF kai PNG

Technikes Prodiagrafes

Pote na Epilexete TIFF

To TIFF paramenei aparaitito stis akolouthes periptoseis:

• Epaggelmatiki ektyposi - ekdotes kai typografeia apaitoun TIFF gia poiotita ektyposis
• Archeiothitisi eggrafon - scans pollaplou selidas einai vrolika na apothikeftoun se ena archeio
• Iatrika aperigraphia - aktinografies, MRI kai alles iatrikes eikones apothikeuontai se TIFF
• Epexergasia me diatirisi epipedon - merikoi epexergastes apothikeuoun epipeda se TIFF
• Megisti poiotita - otan to megethos archeiou den echei simasia alla kathe leptomeria echei

Pote na Epilexete PNG

I metatropi se PNG einai aparaititi otan:

• Dimosievsi sto web - to PNG anoigei se olous tous prorammatistes choris plugins
• Apostoli meso email - archeia PNG einai pio kompakt kai evkola stin prosthiki
• Chrisi se efarmoges - ta perissotera programmata douleuoun me PNG
• Grafika me diafaneia - logotypa, eikondia, banners web
• Kinites syskeves - to PNG einai velitistopoiimeno gia smartphones kai tablets
• Koinonika diktya - oles oi platforms dechontai PNG

Periptoseis Chrisis Metatropis TIFF se PNG

Proetoimasia Scans gia Dimosievsi

Oi scanners eggrafon kai vivlion sychna apothikeuoun apotelesmata se TIFF os to format ypsiliteros poiotitas. Omos, gia topothetisi se websites, psifiakes vivliothikes i systimata diacheirisis eggrafon, apaiteitai PNG i allo format symvato me web. I metatropi epitrepei:

• Meiosi megethous archeiou - to PNG einai synitheos pio kompakt apo asympiestos TIFF
• Exasfalisi symvatotitas - ta scans tha anoigoun se opoiadipote syskevi
• Diatirisi poiotitas - keimeno kai leptomereies paramenoun kathara

Ergasia me Archeiakes Eikones

Mouseia, vivliothikes kai archeia apothikeuoun psifiopoiimenes sylloges se TIFF. Gia ti dimiourgia online katalogon, dimosievsi sta koinonika diktya i apostoli kata aitima, oi eikones prepei na metatrapoun se pio prosvato format:

• Dimiourgia proepiskopiseon - PNG gia web galleries kai katalogous
• Aploustevsi prosvasis - christes mporoun na doun eikones choris eidiko logismiko
• Prostasia protypon - to PNG dianemeitai eno to TIFF paramenei sto archeio

Proetoimasia Iatrikon Eikonon

Aktinografies, apotelesmata MRI kai CT sychna apothikeuontai se TIFF (i exeidikevmeno DICOM, pou mporei na eksachthei se TIFF). Gia metadosi se astheneis i allous iatrois, to PNG einai pio vroliko:

• Theasi choris eidiko logismiko - astheneis mporoun na anoixoun eikones se opoiadipote syskevi
• Apostoli meso email - to PNG einai evkolo na prostethei sta minimata
• Diatirisi poiotitas - diagnostikes leptomereies den chanontai

Web Design kai Anaptixi

Oi schediates mporoun na laboun archika ylika se TIFF apo fotografous i stock sites. I metatropi einai aparaititi gia chrisi se web projects:

• Velistopoiisi website - to PNG fortoni pio grigora apo to TIFF
• Diatirisi diafaneias - kommenoi antikeimena diatiroun to alfa kanali
• Symvatotita metaxy prorammatiston - oi eikones emfanizontai taytosima pantou

Epexergasia Doryforikon kai Geodedomenon

Doryforikes eikones, chartes kai geospatial data sychna dianemenai se format GeoTIFF. Gia optikopoiisi kai dimosievsi, einai pio vroliko na metatrepete se PNG:

• Ensomatosi se efarmoges - web chartes chrisimopoioun PNG tiles
• Aploustevsi ergasias - to PNG anoigei se opoiondipote viewer
• Dimosievsi anaferon - chartes eisagontai evkola sta eggrafa

Poiotita Metatropis

Diatirisi Leptomereion

Kata ti metatropi TIFF se PNG, i poiotita eikonas den chanetai. To PNG chrisimopoiei ton algorithmo sympiesis Deflate, pou leitourgei choris apolies - kathe pixel diatireitai taytosimo me to prototypo. Ayto einai kritiko gia:

• Eggrafa kai keimeno - grammata paramenoun kathara kai anagnosima
• Technika schedia - grammes diatiroun tin akrivia
• Fotografies - oi leptes leptomereies den tholonoun
• Iatrikes eikones - diagnostiki pliroforia diatireitai pliros

Megethos Archeiou pou Prokyptei

To megethos archeiou PNG exartatai apo to periechomeno tis eikonas:

O algorithmos PNG einai idiaiterai apotelesmatikos gia eikones me megales perioches enos chromatos, kathares akres kai epanalamvanomena protypa - typika charaktiristika scans eggrafon kai technikon grafikon.

Symvatotita PNG

Programmata kai Syskeves

To PNG einai ena apo ta pio katholika ypostirizomena formats eikonon:

Ayto kanei to PNG ideaiko format gia tin koinopoiisi eikonon - oi paraliptes tha mporoun me sigoyria na anoixoun to archeio choris na enkatastisoyn epitheito logismiko.