Koyi yadda Ƙa'idodin pixel da Ƙungiyoyi suka shafi
Idan ka ƙara yawan girman hoto, wasu nau'i na haɗin kai ya faru kuma zai iya tasiri sosai akan ingancin hoton. Yana da mahimmanci ga masu daukan hoto su fahimci abin da ake magana da ita da yadda za'a inganta sakamakon.
Mene ne haɗin gwiwa?
Ƙulla dangantaka shine lokaci wanda aka yi amfani dashi don bayyana hanyar da za ta kara yawan adadin pixels a cikin hoton . Ana amfani da shi don ƙara yawan girman girman hoto.
Ƙara girman girman hoto ba a koya mana ba saboda kwamfuta yana buƙatar yin amfani da labaran don ƙara bayani wanda ba a farkon ba. Sakamakon wannan zai iya bambanta dangane da irin kalmar da ake amfani dashi, amma, a gaba ɗaya, ba kyau.
Yayin da kwamfutar ke kokarin fassara abin da sabon bayani ya buƙaci a kara da shi, hotunan zai iya zama ƙuruwa ko samun ƙananan launi ko sautin da ba su da wuri.
Wasu kyamarori na dijital (mafi mahimmanci da harbe bindigogi da wayoyi) amfani da labaran don ƙirƙirar ' zuƙowa na dijital .' Wannan yana nufin cewa kyamara zai iya zuƙowa a bayan iyakar iyakan da ke cikin ruwan tabarau (wanda ake kira zuƙowa mai gani). Idan amfani da daya daga cikin kyamarori ɗin nan, yana da kyau mafi kyau a gare ka don matsa kusa da batun maimakon amfani da zuƙowa na dijital.
Ana amfani dashi da yawa a cikin hotunan kyamarar hoto kuma wannan shine inda mai daukar hoto ya buƙaci fahimtar nau'ikan bambance-bambancen.
Ƙungiyar Makwabta mafi kusa
Maƙwabcin aboki mafi kusa shine mafi yawan amfani da shi a kyamara lokacin yin bita da kuma kara girma don hotunan bayanai. Yana kawai sa pixel ya fi girma, kuma launi na sabon pixel daidai yake da pixel na ainihi mafi kusa.
Rashin haɓaka: Ba dace da hotunan hotuna don bugawa ba kamar yadda zai iya haifar da jaggies .
Haɗin Hanyoyin Bilinear
Haɗin gizon Bilinear yana ɗauke da bayanin daga pixel na asali, da hudu daga cikin pixels da suka taɓa shi, don yanke shawarar launi na sabon pixel. Yana haifar da sakamako mai kyau, amma yana rage inganci sosai.
Rashin haɓaka: Hotuna za su iya zama masifa.
Bicubic Interpolation
Cicubic bicubic shi ne mafi sophisticated na bunch, kamar yadda yake daukan bayani daga ainihin pixel da 16 kewaye pixels don ƙirƙirar launi na sabon pixel.
Bicubic lissafi ya fi girma fiye da sauran biyu hanyoyi, kuma yana iya samar da hotunan hotuna. Bicubic interpolation yana ba da bambance-bambancen biyu na "Smoother" da "Sharper" don sakamako mai kyau.
Rashin haɓaka: Ko da shike yana daya daga cikin mafi kyau mafi kyau, mafi yawa daga tsalle a cikin girman zai iya rage girman image.
Ƙungiyar Fractal
Ana amfani dasu sosai don kwace kwarai, samfurori masu rarraba daga ƙananan pixels fiye da haɗin gizon bicubic. Ya samar da gefen sharper da ƙananan ƙarancin amma yana buƙatar takamaiman software don gudana. Kwararren kwararru masu amfani sukan yi amfani da tsaka-tsaki tsakanin fractal.
Rashin hasara: Mafi yawan software na kwamfuta basu da wannan zaɓi.