Akwai siffofin siffofin da za a iya amfani da su akan shafukan intanet. Wasu misalai na kowa shine GIF , JPG , da PNG . Ana amfani da fayilolin SVG a yanar gizo a yau, yana ba masu zanen yanar gizo duk da haka wani zaɓi don hoton kan layi.
GIF Hotuna
Yi amfani da fayilolin GIF don hotunan da ke da ƙananan launuka. Fayil na GIF kullum suna rage zuwa fiye da 256 launi daban-daban. Matsayin algorithm don matsafan fayilolin GIF ba shi da hadari fiye da fayilolin JPG, amma idan aka yi amfani da hotuna masu launi da rubutu yana samar da ƙananan ƙananan fayiloli .
Tsarin GIF ba ya dace da hotunan hotunan ko hotuna tare da launuka masu laushi. Saboda tsarin GIF yana da iyakacin launuka masu yawa, gradients da hotuna za su ƙare tare da tarwatsawa da pixellation lokacin da aka ajiye a matsayin fayil na GIF.
A takaice, zaku yi amfani da GIF kawai don hotuna masu sauki tare da launuka kawai, amma kuna iya amfani da PNGs don haka (fiye da haka a jim kadan).
JPG Hotuna
Yi amfani da hotuna JPG don hotuna da sauran hotunan da ke da miliyoyin launuka. Yana amfani da algorithm matsalolin rikitarwa wanda ke ba ka damar ƙirƙirar ƙananan graphics ta hanyar rasa wasu daga cikin ingancin hoton. Wannan ana kiran shi "matsalolin" asara saboda wasu bayanan hotunan sun ɓace lokacin da aka matsa hoto.
Tsarin JPG ba ya dace da hotuna da rubutu, manyan sassan launi mai laushi, da siffofi masu sauki tare da gefuna. Wannan shi ne saboda lokacin da aka matsa hoton, rubutu, launi, ko layi na iya ƙetare wanda ya haifar da wani hoto wanda ba shi da mahimmanci kamar yadda za a ajiye a wani tsari.
Hotunan JPG sun fi amfani da su don hotuna da hotuna masu yawa da yawa.
PNG Images
An tsara hoton PNG a matsayin maye gurbin tsarin GIF lokacin da ya bayyana cewa hotunan GIF za su kasance ƙarƙashin kyauta. Siffofin PNG suna da nauyin damuwa fiye da hotuna GIF wanda ke haifar da kananan hotuna fiye da fayil ɗin da aka ajiye a matsayin GIF. Fayil na PNG bayar da gaskiyar haruffa, ma'ana za ka iya samun wurare na hotunanka waɗanda suke da cikakkiyar sassaukaka ko ma amfani da kewayon haɗin alpha. Alal misali, sauƙin inuwa yana amfani da kewayon nuna gaskiya kuma zai dace da PNG (ko dai kawai za mu ƙare ta amfani da CSS inuwa a maimakon).
Hotuna PNG, kamar GIF, ba su dace da hotuna ba. Zai yiwu a samu zagaye na bidiyo wanda ke rinjayar hotunan da aka ajiye a matsayin fayilolin GIF ta amfani da launi na gaskiya, amma wannan zai haifar da manyan hotuna. Hotunan PNG ba su da goyan baya ta wayar tarhon tsohuwar wayarka da kuma wayoyin hannu.
Muna amfani da PNG ga kowane fayil wanda yake buƙatar gaskiya. Har ila yau muna amfani da PNG-8 don kowane fayil wanda zai dace da GIF, ta amfani da wannan tsarin PNG a maimakon haka.
SVG Images
SVG tana tsaye ne don Scalable Vector Graphic. Ba kamar siffofin raster da aka samo a cikin JPG, GIF, da kuma PNG, waɗannan fayiloli suna amfani da kayan aiki don ƙirƙirar ƙananan fayiloli waɗanda za a iya fassarawa a kowane girman ba tare da asarar girman haɓaka a girman fayil ba. An halicce su don zane-zane kamar gumaka har ma da alamu.
Ana shirya Hotuna don Bayarwar Yanar Gizo
Ko da wane irin hotunan hoton da kake amfani dashi, kuma shafin yanar gizonku yana tabbatar da amfani da nau'i daban-daban a duk faɗin shafukansa, kana buƙatar tabbatar da cewa duk hotuna a kan wannan shafin suna shirye don sadarwar yanar gizo . Hotuna masu yawa za su iya haifar da wani shafin don gudanar da sannu a hankali kuma yana tasiri gaba ɗaya. Don magance wannan, dole ne a gyara hotuna don samun daidaituwa tsakanin inganci mai kyau da mafi girman ƙasƙancin fayiloli a matakin ƙimar.
Zaɓin hotunan hotunan hotunan yana cikin ɓangaren yaƙi, amma kuma tabbatar da cewa kun shirya wadannan fayiloli shine matakai na gaba a wannan muhimmin tsari na yanar gizo.
Labari na farko daga Jennifer Krynin. Edited by Jeremy Girard.