JPG imipaka ntarengwa: icyo format idashobora kugumana

By Technical specialist

JPG ntishobora kubika inyuma. Buri pigiseli muri JPG igomba kwiyemeza kurangi rigaragara, bityo igabanywa ryabitswe nkuko JPG iringaniye yera, umukara, cyangwa irindi bara ryatoranijwe. Niba ukeneye agace gakikije ingingo kugirango ugumane ubusa, ohereza PNG aho.

Uku kugabanuka ntigukora JPG ifoto yinkomoko mbi. Bivuze gusa JPG nibisohoka bisobanutse bifite imirimo itandukanye.

Icyo “kidashobora gukomeza gukorera mu mucyo” bivuze

Igabanywa ririmo ubwoko bubiri bwamakuru:

• ibara rigaragara ry’isomo;
• burya buri pigiseli igomba kugaragara, harimo ubusa bwuzuye kandi igice kibonerana.

Igice cya kabiri bakunze kwita alfa. JPG idafite aho ibika.

Iyo software ihinduye ibice bisobanutse muri JPG, igomba guhitamo ibara rigaragara risimbuza buri pigiseli irimo ubusa. Igisubizo gihinduka urukiramende rwuzuye. Akenshi uwo gusimbuza ni umweru, ariko birashobora kuba umukara cyangwa icyaricyo cyose cyatoranijwe.

Ntakintu kibi kiri muri dosiye. Ibisobanuro bisobanutse byavanyweho kuko imiterere yicyerekezo ntishobora kuyitwara.

Ushaka kumenya neza-Icyongereza kuri alpha, reba [PNG iboneye ni iki?](__ MDLINK0__).

JPG irashobora kuba iyinjiza

Amafoto menshi ya kamera na terefone ni amashusho asanzwe y’urukiramende. Bahagera bafite icyumba, urukuta, umuhanda, cyangwa tabletop yamaze kugaragara inyuma yikiganiro. Ibyo bituma JPG yinjiza bisanzwe mugukuraho inyuma.

Igikorwa cyingirakamaro ni:

1. fungura isoko ya JPG;
2. gutandukanya ingingo;
3. Kugenzura no gutunganya inkombe;
4. Kohereza ibisubizo bishya nka PNG.

Inkomoko nibisohoka ntibikeneye gukoresha imiterere imwe. [Hindura ifoto ya JPG muri PNG iboneye](__ MDLINK1__) anyura muri ako kazi mu buryo butaziguye.

Impamvu inyuma yera ishobora kuyobya

Igabanywa ryera rishobora kugaragara neza iyo urebye kurupapuro rwera. Iyimure kumurongo wijimye kandi isahani yera y’urukiramende iragaragara.

Koresha iki kizamini cyihuse:

1. Shyira ishusho hejuru y ibara ritari ryera;
2. Reba impande zose uko ari enye;
3. genzura icyuho cyamaboko, amaboko, numusatsi.

Niba ibara ryikizamini ritagaragaye muri utwo turere, dosiye irasibanganye. A .jpg filename yemeza impamvu. Izina ryizina rya .png` rirashobora gushyigikira gukorera mu mucyo, nubwo PNG ishobora kuba yoherejwe hanze nkana nuzuye ryuzuye.

Umweru ni ibara. Gukorera mu mucyo ni ukubura inyuma ya pigiseli igaragara.

Impande zoroheje zigaragaza indi mbogamizi

Gukata neza ntabwo buri gihe bigira imipaka ikomeye. Umusatsi, ubwoya, igitambaro, igicucu, hamwe na anti-aliased curve irashobora kuba irimo pigiseli zigaragara igice. Alpha ireka izo pigiseli zivanze ninyuma nshya.

Iyo impande ibonerana irambuye muri JPG, impande zivanze n’ibara rimwe rihamye. Shyira JPG ku ibara ritandukanye urashobora kubona:

• urucacagu rwijimye;
• impande zijimye;
• agasanduku k’amasanduku akikije ibisobanuro byiza;
• matte isigaye yuzuza umwimerere.

Iyi niyo mpamvu gukuramo gusa urukiramende rwera muri JPG nyuma ntabwo buri gihe bigarura umwimerere wambere. Inzibacyuho pigiseli yamaze kuvangwa n’umweru.

Gusubiramo JPG inshuro nyinshi birashobora kugabanya ubuziranenge

JPG ikoresha kwikuramo igihombo. Yashizweho kugirango amashusho yifoto ari mato mu koroshya ibintu bigaragara. Buri cyongeweho cyo kuzigama kirashobora kumenyekanisha impeta nyinshi, guhagarika, cyangwa gusiga, cyane cyane hafi yimpande ndende cyane.

Ibyo bihangano bifite akamaro kumupaka waciwe kuko inkombe niho hakenewe ibisobanuro bisukuye. Inkomoko ifunitse cyane irashobora kwerekana:

• fuzzy kontours;
• amabara mato mato hafi y’urucacagu;
• imirongo yatakaye cyangwa ibice bito;
• urusaku rwamabara asa nibisobanuro birambuye.

Kohereza muri PNG birinda ikindi cyiciro cya JPG cyatakaye nyuma yo guca. Ntishobora kugarura ibisobanuro bimaze kubura kubisoko, ariko birinda kongera compression ya JPG kubisubizo biboneye.

Iyo JPG iracyari dosiye yanyuma

JPG irashobora kuba uburyo bwo gutanga bwumvikana mugihe ibyo byose arukuri:

• amateka yanyuma yashizweho nkana;
• gukorera mu mucyo ntibisabwa;
• ishusho ahanini ifotora;
• aho ujya wemera cyangwa ukunda JPG;
• ingano yo gutanga ntoya ifite akamaro kuruta impinduka zizaza.

Kurugero, banneri yarangiye hamwe nifoto yuzuye ifotora ntishobora kungukirwa na alfa. Ifoto yuzuye yera-yinyuma ya cataloge irashobora kandi gutangwa nka JPG niba ibisobanuro byakiriwe bisaba.

Ingingo y’ingenzi ni intego. Kuramo umutware usobanutse kumabara asabwa, hanyuma ukore kopi ya JPG. Ntugatererane shobuja keretse niba uzi neza ko ingingo itazigera ikenera indi miterere.

Imbonerahamwe ifatika

Kugereranya kwagutse kumiterere igezweho igezweho, soma [PNG vs WebP vs AVIF kubaca](__ MDLINK2__).

Amakosa asanzwe yo gukira

Guhindura izina

Guhindura image.jpg kuri image.png ntabwo bihindura dosiye cyangwa kugarura alfa. Kohereza cyangwa guhindura binyuze muri software yandika amakuru ya PNG.

Gusiba umweru kuri JPG

Ibi birashobora gukora kubishushanyo byoroshye bigoye, ariko akenshi byangiza ibice byera byikintu kandi bigasiga umwanda wanduye. Gusubira kuri shobuja ubonerana ni umutekano.

Kohereza ibibanza aho kohereza hanze

Ishusho yerekana neza ibyerekanwe byose, harimo na buri kintu kigaragara. Koresha ibikorwa byo kohereza hanze.

Dufate ko buri PNG iboneye

PNG irashobora gutwara alfa, ariko irashobora kandi kuba irimo inyuma yuzuye. Kugenzura hejuru y’ibara ritandukanye.

Akazi keza cyane

Koresha JPG kubyo ikora neza: kwinjiza amafoto asanzwe hamwe no gutanga amakuru-yibanze yatanzwe. Koresha PNG mugihe ibisubizo bigomba kubungabunga umucyo.

Komeza umuyobozi wa PNG usukuye nyuma yo gukuraho inyuma. Uhereye kuri shobuja, kora JPG yera, JPG y’amabara, cyangwa izindi kopi yerekanwe iyo bikenewe. Iri teka ririnda amahitamo kandi ryirinda kugerageza kongera gukorera mu mucyo nyuma yo gusibanganya.