Grayscale inoreva pfungwa yakakosha inoshandiswa kumiririra shanduko yekupenya kwemavara mukugadzirisa mufananidzo. Grayscale mazinga anowanzo kubva pa0 kusvika 255, apo 0 anomiririra dema, 255 anomiririra chena, uye nhamba dziri pakati dzinomiririra madhigirii egrey akasiyana. Iyo yakakwirira ye grayscale kukosha, iyo inopenya mufananidzo; kudzikisa kukosha kwe grayscale, ndiko kusviba kwemufananidzo.
Grayscale values inoratidzwa seyakapusa integers, ichibvumira makomputa kukurumidza kuita mutongo uye kugadzirisa kana uchigadzira mifananidzo. Iyi nhamba inomiririra inorerutsa zvakanyanya kuoma kwekugadziriswa kwemifananidzo uye inopa mikana yeakasiyana anomiririra mifananidzo.
Grayscale inonyanya kushandiswa mukugadziriswa kwemifananidzo yakasviba nechena, asi inoitawo basa rinokosha mumifananidzo yemavara. Iko kukosha kwe grayscale yemufananidzo weruvara inoverengerwa nehuremu hweavhareji yezvikamu zvitatu zvemavara eRGB (tsvuku, girini, uye bhuruu). Avhareji yehuremu iyi inowanzoshandisa huremu hutatu hwe0.299, 0.587, uye 0.114, hunoenderana nemavara matatu ered, girini, uye bhuruu. Iyi nzira yehuremu inobva mukunzwa kwakasiyana kweziso remunhu kune mavara akasiyana, zvichiita kuti chifananidzo chegreyscale chakashandurwa chienderane nemaitiro ekuona kweziso remunhu.
Grayscale ye LED kuratidza
Chiratidziro che LED chiratidziro chinoshandiswa zvakanyanya mukushambadzira, varaidzo, chekufambisa uye mamwe minda. Chiratidziro chayo chakanangana neruzivo rwemushandisi uye ruzivo rwekufambisa ruzivo. Muchiratidziro che LED, iyo pfungwa yegreyscale inonyanya kukosha nekuti inokanganisa zvakananga kuita kwemavara uye mhando yemufananidzo wechiratidziro.
Iyo greyscale yechiratidziro che LED inoreva kuita kwepixel imwe chete ye LED pamatanho ekupenya akasiyana. Yakasiyana greyscale kukosha inoenderana neakasiyana kupenya mazinga. Iyo yakakwirira iyo greyscale level, inopfuma iyo ruvara uye ruzivo rwunogona kuratidza.
Semuenzaniso, 8-bit grayscale system inogona kupa 256 grayscale mazinga, nepo 12-bit grayscale system inogona kupa 4096 grayscale mazinga. Naizvozvo, yakakwira greyscale mazinga anogona kuita iyo LED kuratidza kuratidza yakapfava uye yakawanda yakasikwa mifananidzo.
Mukuratidzira kwe LED, kuitiswa kwegreyscale kazhinji kunovimba nePWM (pulse wide modulation) tekinoroji. PWM inodzora kupenya kwe LED nekugadzirisa reshiyo yenguva yekubatidza uye yekudzima kuti iwane akasiyana greyscale mazinga. Iyi nzira haigone kunyatso kudzora kupenya, asiwo zvinobudirira kuderedza kushandiswa kwesimba. Kuburikidza nePWM tekinoroji, maratidziro e LED anogona kuwana shanduko yakapfuma yegreyscale ichichengetedza kupenya kwakanyanya, nekudaro ichipa yakanyanya kutetepa mufananidzo kuratidza maitiro.
Grayscale
Giredhi greyscale inoreva huwandu hwegreyscale mazinga, kureva, huwandu hweakasiyana mazinga ekupenya ayo anogona kuratidza. Iyo yakakwira giredhi greyscale, ndiko kupfuma kwemavara echiratidziro uye nekunakisa kwemifananidzo. Chiyero chegiredhi greyscale chinokanganisa zvakananga kuzara kwemavara uye mutsauko wechiratidziro, zvichizokanganisa maitiro ekuratidzira.
8-bit grayscale
Iyo 8-bit greyscale system inogona kupa 256 greyscale mazinga (2 kusvika kune yechisere simba), inova ndiyo yakajairika greyscale level ye LED kuratidza. Kunyangwe 256 grayscale mazinga achikwanisa kuzadzisa zvinodiwa zvekuratidzira, mune mamwe maapplication epamusoro-soro, 8-bit grayscale inogona kunge isina kutetepa zvakakwana, kunyanya kana ichiratidza yakakwirira dynamic range (HDR) mifananidzo.
10-bit grayscale
Iyo 10-bit greyscale system inogona kupa 1024 grayscale mazinga (2 kusvika kune gumi simba), iyo yakanyanya kutetepa uye ine yakatsetseka shanduko yeruvara pane 8-bit grayscale. 10-bit greyscale masisitimu anowanzo shandiswa mune mamwe epamusoro-magumo ekuratidzira maapplication, senge yekurapa imaging, nyanzvi yekutora mifananidzo, uye kugadzirwa kwevhidhiyo.
12-bit grayscale
Iyo 12-bit greyscale system inogona kupa 4096 grayscale mazinga (2 kusvika kugumi nembiri simba), inova yakanyanya greyscale level uye inogona kupa yakanyanya kutetepa kuita kwemufananidzo. Iyo 12-bit greyscale system inowanzo shandiswa mune mamwe anodiwa zvakanyanya ekuratidzira maapplication, senge aerospace, kutariswa kwemauto uye mamwe minda.
Mu LED kuratidza skrini, kuita kwegreyscale hakubvi parutsigiro rwehardware chete, asi kunodawo kubatana kwesoftware algorithms. Kuburikidza nemhando yepamusoro yekugadzirisa algorithms, kuita kwegreyscale kunogona kuwedzeredzwa, kuitira kuti skrini yekuratidzira inogona kunyatso kudzoreredza chiitiko chaicho padanho repamusoro regreyscale.
Mhedziso
Grayscale ipfungwa yakakosha mukugadzirisa mufananidzo uye kuratidza tekinoroji, uye kushanda kwayo mu LED kuratidza skrini kunonyanya kukosha. Kuburikidza nekutonga kunoshanda uye kutaura kwegreyscale, ma LED anoratidza zviratidziro anogona kupa akapfuma mavara nemifananidzo yakapfava, nekudaro inosimudzira ruzivo rwemushandisi. Mumashandisirwo anoshanda, kusarudzwa kweakasiyana greyscale mazinga anoda kutariswa zvinoenderana nechaicho chekushandisa zvinodiwa uye mamiriro ekushandisa kuti uwane yakanakisa kuratidza maitiro.
Iyo greyscale yekumisikidzwa kwe LED kuratidza skrini inonyanya kutsamira paPWM tekinoroji, iyo inodzora kupenya kwe LED nekugadzirisa reshiyo yekuchinja nguva ye LEDs kuti iwane akasiyana greyscale mazinga. Iyo nhanho yegreyscale inokanganisa zvakananga mashandiro eruvara uye mhando yemufananidzo wechiratidziro. Kubva pa8-bit greyscale kusvika ku12-bit greyscale, mashandisirwo eakasiyana greyscale mazinga anosangana nezvinodiwa zvekuratidzira pamatanho akasiyana.
Kazhinji, kuenderera mberi kwekusimudzira uye kufambira mberi kwegreyscale tekinoroji inopa yakakuraapplication tarisiro ye LED kuratidza skrini. Mune ramangwana, nekumwe kuvandudzwa kwehunyanzvi hwekugadzira mifananidzo uye nekuenderera mberi kwekuita kwehardware performance, kuita kwegreyscale kwe LED kuratidza skrini kuchave kwakanyanya, kuunza vashandisi chiitiko chinokatyamadza chekuona. Naizvozvo, pakusarudza uye kushandisa LED kuratidza skrini, kunzwisisa kwakadzama uye zvine musoro kushandisa kwegreyscale tekinoroji ichave kiyi yekuvandudza maitiro ekuratidzira.
Nguva yekutumira: Sep-09-2024
