Matsalar
Abin da ya zama mai sauƙi ga mutane - gano " babban batu" na hoto - yana da ban mamaki ga kwakwalwa. Hoton grid ne kawai na pixels masu launi. Babu wata alama ta asali da ke cewa "wannan pixel shine mutum" kuma "wannan pixel shine bangon bayansu".
Hanyoyi na al'ada sun yi amfani da dabaru kamar madaidaicin launi (cire duk pixels na wani launi) ko gano gefen (nemo iyakoki tsakanin abubuwa). Waɗannan sun yi aiki don lokuta masu sauƙi amma sun kasa tare da hadaddun al'amuran, launuka iri ɗaya tsakanin batu da bango, ko cikakkun bayanai.
Shigar da Koyon Injin
Cire bangon AI na zamani yana amfani da zurfin koyo - musamman, ƙirar rarrabuwar hoto. Ga sauƙaƙan sigar yadda yake aiki:
1. Horo
Ana nuna hanyar sadarwar jijiyoyi miliyoyin hotuna inda aka riga aka gano batun da hannu (lakabi). A tsawon lokaci, samfurin yana koyon alamu: yadda mutane suke kama, yadda aka tsara abubuwa, yadda batutuwa suka bambanta da asali. Yana koyon gane gefuna, laushi, da mahallin mahallin.
2. Inference (Amfani da Model)
Lokacin da ka ba samfurin da aka horar da shi sabon hoto wanda bai taɓa gani ba, yana nazarin bayanan pixel kuma ya samar da "mask"" - taswirar da ke ba kowane pixel yuwuwar kasancewa gaba (batun) ko bango. Ana adana pixels na gaba mai ƙarfi; Ana cire firikwensin baya masu ƙarfin gwiwa.
3. Gyaran fuska
Canji tsakanin gaba da baya yana da mahimmanci. Samfuran zamani suna haifar da gefuna masu laushi (bayanin gaskiya) maimakon yankan binary mai wuya. Wannan yana haifar da sakamako na dabi'a, musamman a kusa da gefuna masu rikitarwa.
Me yasa GPUs Mahimmanci
Cibiyoyin jijiyoyi suna aiwatar da hotuna ta hanyar dubban ayyukan lissafi lokaci guda. GPUs (Raka'o'in Gudanar da Zane-zane) an ƙirƙira su don daidai irin wannan nau'in lissafin layi ɗaya. Aikin da zai ɗauki daƙiƙa 30 akan CPU na iya kammalawa cikin daƙiƙa 2-3 akan GPU.
Wannan shine dalilin da ya sa kayan aikin kamar QuickRemove suna goyan bayan haɓakar GPU daga NVIDIA, AMD, da Intel GPUs. Samfurin AI yana gudana kai tsaye akan GPU ɗin ku don sarrafa sauri. Idan babu GPU masu jituwa, software ɗin tana komawa ga sarrafa CPU - har yanzu tana aiki, yana ɗaukar lokaci mai tsawo.
Abin da AI ke da kyau a
- Mutane da hotuna - wannan shi ne mafi yawan amfani da harka, da kuma model suna da-horar da shi
- Dabbobi da dabbobin gida - samfuran suna kula da gashin gashi da sifofin dabba da kyau
- Kayayyaki da abubuwa - abubuwan da aka tsara da kyau tare da iyakoki bayyananne
- Motoci — motoci, kekuna, da makamantansu
- Matsaloli masu rikitarwa - AI na iya raba batutuwa daga aiki, cikakkun bayanai
Kalubale ga AI
- Abubuwan da ke bayyane - gilashi, ruwa, da sauran kayan gani-ta hanyar suna da wayo (QuickRemove ya haɗa da kulawa ta musamman don wannan)
- Kamanniyar launi - lokacin da batun da bango ya yi kama da launi, iyakoki suna da wahalar ganowa
- Wurare masu sarƙaƙƙiya - batutuwa masu rikitarwa da yawa ko madaidaicin gaba/baya
Bayan-Processing
Bayan AI ya haifar da abin rufe fuska na farko, bayan aiwatarwa yana daidaita sakamakon. Kayan aiki kamar QuickRemove tayin:
- Gefen gashin fuka-fuki - tausasa canji tsakanin magana da bango
- Smoothing - rage jagged gefuna
- Lalacewar launi - cire zubewar launi inda asalin launi na asali ke zub da jini a kan gefuna
- Goga/ gogewa na hannu - don gyare-gyare masu kyau AI na iya ɓacewa
Layin Kasa
Cire bangon AI ya kai matsayi inda yake samar da sakamako masu inganci a cikin daƙiƙa. Duk da yake ba cikakke ba a kowane yanayi, yana ɗaukar mafi yawan lokuta na yau da kullun tare da daidaito mai ban sha'awa - yin cire bayanan baya ga kowa, ba kawai masana Photoshop ba.