Megapixels su ne ginin gine-gine na hotunan dijital
Masu samar da kyamara suna jin dadin kyamaran talla ta yawan megapixels suna da. Wannan sauti mai girma a cikin kasuwanci, amma menene daidai ne megapixel? Ta yaya suke shafar hotuna? Yaya damuwa ya kamata ka kasance game da sayen karin megapixels a kyamara?
Menene Megapixel?
Ɗaya daga cikin megapixel tana da pixels miliyan 1 . Pixels ƙananan ƙananan murabba'i ne waɗanda aka haɗa su kamar nau'i na ƙwaƙwalwa ko mosaic don ƙirƙirar hotunanku.
Za a ƙaddara ƙudurin hotonka a babban ɓangaren ta yadda yawancin waɗannan ƙananan murabba'ai suna haɗu a cikin karamin wuri.
- Kyamara 20-megapixel (20MP) zai sami kimanin miliyon miliyoyin mota na bayanai a kowace inch.
- Wayar kyamara tareda 8-megapixels (8MP) kawai zata sami miliyoyin miliyoyin bayanai a cikin inch.
To me Menene Wannan Ma'anar Abubuwan Hotuna?
Kawai sanya: ƙarin megapixels yana nufin karin bayani kuma hakan yana haifar da hotuna mafi girma.
Ƙarin bayani da aka saka a cikin wani yanki, mafi sauki ga idanun mu don haɗaka gefuna tare don ƙirƙirar hoton. Idan kadan ya samu bayanai, ido zai lura da gefen da aka sanya a cikin pixels inda suke saduwa, kamar yadda kake ganin kowane sashi na kayan ado na mosaic.
"Daidai" da aka yarda don buga hotuna yana da 300dpi (dige da inch). Duk da yake dots a cikin inch ba na fasaha ba ne kawai kamar pixels per inch (ppi), bambancin ba zai shafe ka ba a ranar ɗaukar hoto da bugu.
Yaya Saurin Bayanai Ina Bukata?
Don gano yadda ake buƙatar bayanin da kake buƙatar takamaiman sigar takarda , duk abin da kake buƙatar yi shine ninka girman girman ta hanyar ƙudurin da aka so.
Alal misali, don buga hoto 8x10 za ku buƙaci 2400 pixels da 3000 pixels na bayanai a 300dpi. Idan kana nuna hoto a kan intanet (inda 72 pixels da inch ke karɓa) zaka buƙaci 576 pixels ta 720 pixels.
To, yaya Megapixels Nawa Ne Ya Bukata?
Kowane kyamara yana nuna bayanai a cikin ɗan gajeren bambanci amma akwai wasu "ka'idojin yatsa" za ka iya bi.
- Yi shawarar babban siffar da kake so a buga. Ga mafi yawan mutane, wannan zai zama hoton 8x10.
- Ƙayyade adadin pixels da ake bukata don bugawa 300dpi. Domin 8x10 bita, wannan shine 2400x3000.
- Haɗa nau'i biyu-pixel tare. Don 8x10 wannan ya fito zuwa pixels 7.2 miliyan (7.2 megapixels). Wannan shi ne lambar MP mafi girman da kake buƙatar idan an buga shi 8x10 mafi girma wanda za a iya bugawa.
Kuna Kayan Magapixel Chaser?
Wasu mutane suna jin dadin amfani da fasaha mafi girma da kuma mafi girma a duk lokacin da aka saki. Wannan abu ne mai girma, amma idan ya zo ga gaskiyar kyamarori na dijital, ba koyaushe ka 'bi' megapixel da haɓakawa zuwa kyamara mai girma megapixel.
Kamar yadda kake gani da math, yawancin kyamarori (har ma mafi yawan wayoyin salula) suna da fiye da MP din da za su iya bugawa 8x10 mai kyau. Kyawawan yawa a kowane lokaci bayan 2013, a zahiri ya zama da wuya a sami sabon kyamaran kyamara a kasa 7.2 megapixels. Da kowace sabuwar shekara, megapixels suna karuwa, don haka babu gaske damu da damuwa game da megapixels ko kama sabon kyamara kawai don cewa kana da MP fiye da abokanka.
Abin da ke ciki a daukar hoto - kuma yana da, har ma tare da fim - shine ingancin ruwan tabarau da kuma iyawarka don ɗaukar hotuna mai dacewa. Factor a cikin ingancin maɓallin kyamara na dijital kuma kada ku sami matsala don samun hotuna masu kyau.