Zinthu zonse zimatulutsa mphamvu ya infrared (kutentha) malinga ndi kutentha kwawo. Mphamvu ya infrared yomwe imachokera ku chinthu imatchedwa chizindikiro chake cha kutentha. Nthawi zambiri, chinthu chikatentha kwambiri, chimatulutsa mphamvu zambiri. Chithunzi cha kutentha (chomwe chimadziwikanso kuti chithunzi cha kutentha) kwenikweni ndi sensa ya kutentha, yomwe imatha kuzindikira kusiyana pang'ono kwa kutentha. Chipangizochi chimasonkhanitsa mphamvu ya infrared kuchokera ku zinthu zomwe zili pamalopo ndikupanga zithunzi zamagetsi kutengera chidziwitso chokhudza kusiyana kwa kutentha. Popeza zinthu sizimakhala pa kutentha kofanana ndi zinthu zina zomwe zili pafupi nazo, zimatha kuzindikirika ndi chithunzi cha kutentha, ndipo zidzawoneka bwino pachithunzi cha kutentha.
Zithunzi zotentha nthawi zambiri zimakhala za imvi mwachibadwa: zinthu zakuda zimakhala zozizira, zinthu zoyera zimakhala zotentha, ndipo kuya kwa imvi kumasonyeza kusiyana pakati pa ziwirizi. Komabe, ojambula ena otenthetsa amawonjezera mtundu pachithunzichi kuti athandize ogwiritsa ntchito kuzindikira zinthu zomwe zili kutentha kosiyanasiyana.
Kodi kujambula zithunzi za kutentha n'chiyani?
Chithunzi cha kutentha cha infrared chingathe kusintha kutentha bwino (monga mphamvu ya kutentha) kukhala kuwala kooneka, kuti chizitha kuwunika malo ozungulira. Izi zimapangitsa kuti zikhale zosinthasintha kwambiri. Zipangizo zamoyo ndi zamakina zimatulutsa kutentha ndipo zimatha kuwoneka ngakhale mumdima. Zithunzi za kutenthazi ndi zolondola kwambiri ndipo zimagwira ntchito bwino ndi kutentha pang'ono chabe.
Kodi kujambula zithunzi za kutentha kumagwira ntchito bwanji?
Kuwala kooneka bwino n'kothandiza kwambiri kwa anthu ndi zamoyo zina, koma ndi gawo laling'ono chabe la electromagnetic spectrum. Mphamvu ya infrared yopangidwa ndi kutentha imakhala ndi "malo" ambiri mu spectrum. Chithunzi cha kutentha cha infrared chimagwira ndikuwunika momwe kutentha komwe kumayamwa, kuwonetseredwa komanso nthawi zina kumafalikira.
Mlingo wa kutentha komwe kumachokera ku chinthu umatchedwa chizindikiro chake cha kutentha. Chinthu chotentha kwambiri chikaperekedwa, chimatuluka kwambiri m'chilengedwe. Chithunzi cha kutentha chimatha kusiyanitsa pakati pa gwero la kutentha ndi kusiyana pang'ono kwa kutentha. Chimasonkhanitsa deta iyi kukhala "mapu a kutentha" athunthu kuti chisiyanitse ndi kutentha komwe kumachokera.
Kodi kugwiritsa ntchito zithunzi zotentha n'kotani?
Poyamba ankagwiritsidwa ntchito pofufuza usiku ndi kumenyana. Kuyambira pamenepo, akhala akukonzedwa kuti azigwiritsidwa ntchito ndi ozimitsa moto, akatswiri amagetsi, apolisi ndi magulu opulumutsa anthu m'malo omwe akhudzidwa ndi ngozi. Amagwiritsidwanso ntchito kwambiri poyang'anira nyumba, kukonza ndi kukonza bwino.
Kodi mungapange bwanji chithunzi cha kutentha?
Kujambula zithunzi za kutentha kungakhale ukadaulo wochepa komanso wogwira mtima. Wojambula zithunzi za kutentha wosavuta kwambiri amatha kuwunika komwe kutentha kumayikidwa pakati pa tsitsi lopingasa. Makina ovuta kwambiri amapereka mfundo zambiri zofananizira, kotero ogwiritsa ntchito amatha kusanthula momwe zinthu zilili. Mtundu wa zithunzi za kutentha umasiyana kwambiri, kuyambira utoto wa monochrome mpaka utoto wathunthu wa "mtundu wonyenga".
Kodi muyenera kuyang'ana chiyani mu zida zojambulira kutentha?
Makamaka, kufunikira kwanu kwa chithunzi chotenthetsera kumadalira malo omwe mumagwiritsa ntchito. Komabe, madera awiri ndi omwe amasiyanitsa khalidwe la zithunzi zotenthetsera: kuzindikira kwa kuwala ndi kukhudzidwa ndi kutentha.
Monga ma resolution ena ambiri, resolution imalongosola chiwerengero chonse cha ma pixel - mwachitsanzo, resolution ya 160×120 imakhala ndi ma pixel 19200. Pixel iliyonse ili ndi deta yake yokhudzana ndi kutentha, kotero resolution yayikulu imatha kupanga chithunzi chomveka bwino.
Kuzindikira kutentha ndi malire a kusiyana komwe kungadziwike ndi chithunzi. Mwachitsanzo, ngati kukhudzidwa kwa chipangizocho ndi 0.01 °, zinthu zomwe zili ndi kusiyana kwa kutentha kwa peresenti imodzi zimatha kusiyanitsa. Magawo ocheperako ndi apamwamba kwambiri a kutentha nawonso ndi ofunikira.
Zithunzi zotentha zili ndi zofooka zina: mwachitsanzo, sizingadutse mugalasi chifukwa cha mphamvu zowunikira za zinthuzo. Zingathebe kuwona koma sizingalowe m'khoma. Komabe, kujambula kutentha kwakhala kothandiza m'njira zambiri.
Nthawi yotumizira: Disembala-07-2021