Hoton dijital ya ƙunshi wakilci mai fuska biyu na hoto dangane da ma'auni na lamba, wanda yawanci binary yake, tare da waɗanda suke da sifili.
Resoludurin hoto na dijital na iya zama tsauri ko tsaye kuma bisa ga wannan ƙa'idar sun kasu kashi biyu:
Nau'in hotunan dijital
Rama na dijital ko hotunan bitmaps
Kowane pixel da ke yin hoton yana da takamaiman launi da ƙuduri mafi girma ko fiye da pixels da suke da shi, mafi ingancin hoton zai kasance.
Ofayan shirye-shiryen da akafi amfani dasu don shirya hotuna shine sananne Hotuna, wanda sakamakonsa yana da kyau sosai, amma, yana haifar da hotuna idan aka faɗaɗa rasa kaifi, tunda shirye-shiryen gyara maye gurbin pixels ga wasu marasa gaskiya.
Wannan nau'in hotunan dijital galibi ana amfani dashi a ciki shafukan yanar gizo, a cikin hotuna da sauran zane-zane na dijital tunda inganci da daki-daki da suka bayar yana da mahimmanci.
Hotunan vector
Akasin haka dijital hotuna, ba a haɗa su da pixels ba, amma dai tashi kayan zane-zane wanda ya dogara da wuraren sarrafawa, godiya ga abubuwan da suke dasu na lissafin lissafi sun sami damar samar da lankwasa tsakanin aya da wani kuma idan aka yi amfani da shirin gyara, kawai yana lissafa dabara ne kuma yana daidaita hoton zuwa mai amfani.
Hotunan vector ana amfani dasu don samar da hotuna masu sauƙi, kamar tambura, tazarar layi, koguna, raƙuman ruwa da sauran abubuwan da ba a gauraya ba. Hakanan shirye-shiryen da aka fi amfani dasu don ƙirƙirawa da haɓaka zane-zane suma Corel zana y Adobe zanen hoto.
Menene yanayin launi?
Hoton dijital na iya samun launuka da yawa ko a'a, wannan zai dogara ne da nau'in aikin hoto da kuke so.
Akwai halaye masu launuka da yawa, mafi shahararren shine RGB da CMYK kuma waɗannan sune wasu mahimman mahimmanci kuma ana amfani dasu a cikin hotunan dijital:
Yanayin Monochrome
Ana gane shi saboda hotunan baƙaƙe ne da fari kawai.
Yanayin grayscale
Ana amfani da launuka har 250 na baƙar fata, fari da launin toka.
Yanayin launi mara nauyi
Har zuwa launuka 256 ana samunsu a cikin fayil guda na kusan rago 8.
Yanayin HSB
Don wannan akwai launuka masu gamsarwa 25-bit kuma kowane launi yana da launin sa, haske, da kuma jikewarsa.
Yanayin RGB
Wannan shine wanda ake amfani dashi a PC da allon hannu, shine ɓangare na launuka masu mahimmanci guda 3, kamar yadda suke ja, kore da shuɗi kuma daga waɗannan yana yiwuwa a wakiltar kowane launi.
Yanayin CMYK
Yana taso daga Cyan, Magenta, Rawaya launi mai launi, cimma launuka kawai waɗanda suke a cikin bakan da aka gani kuma ana amfani dashi galibi a waɗancan hotunan waɗanda ke buƙatar bugu na gaba don hana launuka canzawa tare da shi.
Yana da muhimmanci a tuna hakan shirye-shirye kamar Photoshop Suna ba ka damar yin canje-canje ga hotunan wanda zai iya zama da amfani ƙwarai yayin gyaggyara hotuna don allo da kwafi.
Nau'in matattarar hoto na dijital
Ana yin waɗannan damfara ne don rage girman sararin da wasu hotuna ke ciki kuma akwai nau'i biyu:
Rashin hasara: ta hanyar wannan tsari ake samunsa damfara hoton ba tare da rasa komai ba komai kankantarsa, tare da fa'idar cewa daga baya za a iya dawo da asalin hoto ba tare da matsala ba
Lossy: ra'ayin amfani da wannan matsi shine zauna kamar yadda kadan sarari-wuri, sanya hoton ya zama mafi qarancin nauyi, amma wannan abin takaici yana sa a rasa sassansa, kodayake wani lokacin wannan ba shi da tabbas.
Zamu ambata a kasa wasu nau'ikan nau'ikan nau'ikan siffofin raster din dijital
- Tsarin JPG / JPEG
- Tsarin kara hoto na Gif
- Tsarin hoto PNG
- Tsarin tsawan hoto .tiff / .tif
- Tsarin hoton RAW
- Tsarin hoto BMP
- Tsarin tsawaita fayil ɗin hoto .psd
Wasu daga waɗannan tsarukan ba da damar damfara hotuna tare da ko babu asara kuma suna kuma aiki don rasters da hotunan vector.
Very kyau