{"id":202,"date":"2023-08-10T00:14:52","date_gmt":"2023-08-09T22:14:52","guid":{"rendered":"https:\/\/martin-in.space\/?p=202"},"modified":"2024-01-10T22:00:51","modified_gmt":"2024-01-10T21:00:51","slug":"pridanie-h-alpha-do-rgb-v-pixinsight","status":"publish","type":"post","link":"https:\/\/martin-in.space\/index.php\/2023\/08\/10\/pridanie-h-alpha-do-rgb-v-pixinsight\/","title":{"rendered":"Pridanie Ha do RGB v PixInsight"},"content":{"rendered":"\n<p>V tomto postupe by som uk\u00e1zal ako prid\u00e1vam H alphu kan\u00e1l do RGB sn\u00edmku. Nie je to dokonal\u00fd postup, ke\u010f\u017ee s touto tematikou sa len za\u010d\u00ednam zaobera\u0165. Postupom \u010dasu d\u00fafam, \u017ee sa mi podar\u00ed postup vylep\u0161i\u0165. Zatia\u013e vych\u00e1dzam z n\u00e1vodov, \u010do som zhliadol na Youtube.com alebo pre\u010d\u00edtal, ke\u010f som h\u013eadal inform\u00e1cie pre t\u00fato t\u00e9mu.<\/p>\n\n\n\n<!--more-->\n\n\n\n<h1 class=\"wp-block-heading\">\u00davod<\/h1>\n\n\n\n<p>V\u0161etky sn\u00edmky som z\u00edskal farebnou (OSC &#8211; One Shot Color) kamerou ZWO ASI 533 MC Pro. Prv\u00fa noc som fotil pomocou filtra Optolong L Pro, \u010do bude predstavo\u0165 v tomto n\u00e1vode RGB sn\u00edmok. Druh\u00fa noc som fotil pomocou filtra Optlong L-Enhanced, \u010do je vlastne dualband filter (Halpha, Hbeta a OIII). Tento bude z\u00e1klad pre z\u00edskanie H alpha kan\u00e1lu pre pridanie do RGB sn\u00edmku.<\/p>\n\n\n\n<p>Ako prv\u00fd krok som si vytvoril master sn\u00edmky pre RGB a Halphu. Urobil som na nich \u00fapravy v line\u00e1rnom re\u017eime, teda aby sn\u00edmky zostali pred zlu\u010dovan\u00edm v line\u00e1rnom stave. Pou\u017eil som iba procesy:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>AutomaticBackgroundExtraction<\/li>\n\n\n\n<li>BackgroundNeutralization<\/li>\n\n\n\n<li>SpectrophotometricColorCalibration<\/li>\n\n\n\n<li>BlurXTerminator<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1664\" height=\"884\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image.png\" alt=\"\" class=\"wp-image-203\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image.png 1664w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-300x159.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-768x408.png 768w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-1536x816.png 1536w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-500x266.png 500w\" sizes=\"auto, (max-width: 1664px) 100vw, 1664px\" \/><figcaption class=\"wp-element-caption\">RGB sn\u00edmok po \u00faprav\u00e1ch v linearnom re\u017eime<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1725\" height=\"849\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-1.png\" alt=\"\" class=\"wp-image-204\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-1.png 1725w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-1-300x148.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-1-768x378.png 768w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-1-1536x756.png 1536w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-1-500x246.png 500w\" sizes=\"auto, (max-width: 1725px) 100vw, 1725px\" \/><figcaption class=\"wp-element-caption\">Halpha sn\u00edmok po \u00faprav\u00e1ch v line\u00e1rnom re\u017eime<\/figcaption><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">Pr\u00eddanie Halpha do RGB<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Zarovnanie RGB a Halpha sn\u00edmkov<\/h2>\n\n\n\n<p>Ako prve je potrebn\u00e9 urobi\u0165 zarovanie sn\u00edmkov. Na to sl\u00fa\u017ei proces <strong>StarAlignment<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Refrence Image<\/strong>: RGB<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"520\" height=\"760\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-2.png\" alt=\"\" class=\"wp-image-205\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-2.png 520w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-2-205x300.png 205w\" sizes=\"auto, (max-width: 520px) 100vw, 520px\" \/><figcaption class=\"wp-element-caption\">StarAlignment RGB a Halpha <\/figcaption><\/figure>\n\n\n\n<p>Proces cez trohuholn\u00edk v \u013eavom dolnom rohu prenesieme na Halpha sn\u00edmok. V\u00fdsledkom bude nov\u00fd sn\u00edmok Halpha_registered.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"619\" height=\"619\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-3.png\" alt=\"\" class=\"wp-image-206\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-3.png 619w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-3-300x300.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-3-150x150.png 150w\" sizes=\"auto, (max-width: 619px) 100vw, 619px\" \/><figcaption class=\"wp-element-caption\">Halpha_registered &#8211; zarovnan\u00fd sn\u00edmok <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Rozdelenie kan\u00e1lov<\/h2>\n\n\n\n<p>\u010ea\u013es\u00edm krokom je rozdelenie kan\u00e1lov Halpha_registered sn\u00edmku pomocou Split RGB Channels.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"246\" height=\"27\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-4.png\" alt=\"\" class=\"wp-image-207\"\/><figcaption class=\"wp-element-caption\">Na \u013eavej strane sa nach\u00e1dza Slit RGB Channels<\/figcaption><\/figure>\n\n\n\n<p>T\u00fdmto krokom dostaneme tri sn\u00edmky pre ka\u017ed\u00fd kan\u00e1l (R, G, B). H alpha je najviac zast\u00fapen\u00e1 v R (\u010dervenom) kan\u00e1ly.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"766\" height=\"772\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-5.png\" alt=\"\" class=\"wp-image-208\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-5.png 766w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-5-298x300.png 298w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-5-150x150.png 150w\" sizes=\"auto, (max-width: 766px) 100vw, 766px\" \/><figcaption class=\"wp-element-caption\">R kan\u00e1l pre Halpha_registered<\/figcaption><\/figure>\n\n\n\n<p>Pre zjednodu\u0161enie pr\u00e1ce som si premenoval sn\u00edmok z Halpha_registered_R na Ha.<\/p>\n\n\n\n<p>V r\u00e1mci tohto kroku som si t\u00fdmto ist\u00fdm postupom rozdelil na jednotliv\u00e9 kan\u00e1ly aj RGB sn\u00edmok, \u010d\u00edm som hlavne dostal sn\u00edmok RGB_R.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Linear fit<\/h2>\n\n\n\n<p>\u010ea\u013e\u0161\u00edm krokom je Linear fit, \u00faprava jasnost\u00ed oboch sn\u00edmkov, teda Ha a RGB_R. Toto sa rob\u00ed cez proces LinearFit. Ako <strong>Reference image <\/strong>posl\u00fa\u017ei Ha. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"446\" height=\"136\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-6.png\" alt=\"\" class=\"wp-image-209\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-6.png 446w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-6-300x91.png 300w\" sizes=\"auto, (max-width: 446px) 100vw, 446px\" \/><figcaption class=\"wp-element-caption\">LinearFit<\/figcaption><\/figure>\n\n\n\n<p>Cez trojuholn\u00edk v\u013eavo dole sa proces aplikuje na RGB_R sn\u00edmok. V\u00fdsledok tohto medzikroku:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"624\" height=\"618\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-7.png\" alt=\"\" class=\"wp-image-210\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-7.png 624w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-7-300x297.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-7-150x150.png 150w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-7-303x300.png 303w\" sizes=\"auto, (max-width: 624px) 100vw, 624px\" \/><figcaption class=\"wp-element-caption\">RGB_R po LinearFit<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u00daprava Ha a RGB_R<\/h2>\n\n\n\n<p>\u010ealej je potrebn\u00e9 skombinova\u0165 Ha a RGB_R sn\u00edmky. Na toto sl\u00fa\u017ei proces PixelMath.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00daprava hviezd Na Ha<\/h3>\n\n\n\n<p>Ke\u010f\u017ee hviezdy z Halpha sn\u00edmku nie s\u00fa prirodzen\u00e9 ako na RGB sn\u00edmku, tak je ich potrebne upravi\u0165 a odstran\u00ed\u0165. Na toto posl\u00fa\u017eia dva procesy, PixelMath a StarXTerminator.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">PixelMath<\/h4>\n\n\n\n<p>V PixelMath som pou\u017eil tieto nastavenia a vzorce. Najrpv \u00faprava hviezd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RGB\/K<\/strong>: Ha &#8211; Q * (RGB_R &#8211; med(RGB_R))<\/li>\n\n\n\n<li><strong>Symbols<\/strong>: Q = 0.5<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"384\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-8.png\" alt=\"\" class=\"wp-image-211\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-8.png 622w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-8-300x185.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-8-486x300.png 486w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><figcaption class=\"wp-element-caption\">Vzorec v RGB\/K<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"625\" height=\"390\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-9.png\" alt=\"\" class=\"wp-image-212\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-9.png 625w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-9-300x187.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-9-481x300.png 481w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><figcaption class=\"wp-element-caption\">Symbols<\/figcaption><\/figure>\n\n\n\n<p>V\u00fdsledok tohto kroku:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"761\" height=\"760\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-13.png\" alt=\"\" class=\"wp-image-216\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-13.png 761w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-13-300x300.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-13-150x150.png 150w\" sizes=\"auto, (max-width: 761px) 100vw, 761px\" \/><figcaption class=\"wp-element-caption\">Potla\u010denie hviezd na Ha cez PixelMath<\/figcaption><\/figure>\n\n\n\n<p>\u010ealej pomocou PixelMath som stmavil Ha sn\u00edmok pomocou vzorca <em>Ha &#8211; med(Ha)<\/em> v z\u00e1lo\u017eke <strong>RGB\/K<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"384\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-14.png\" alt=\"\" class=\"wp-image-217\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-14.png 622w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-14-300x185.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-14-486x300.png 486w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><figcaption class=\"wp-element-caption\">PixelMath a vzorec na ztmavnenie Ha sn\u00edmku<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Stmaven\u00fd Ha:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"763\" height=\"766\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-15.png\" alt=\"\" class=\"wp-image-218\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-15.png 763w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-15-300x300.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-15-150x150.png 150w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-15-299x300.png 299w\" sizes=\"auto, (max-width: 763px) 100vw, 763px\" \/><figcaption class=\"wp-element-caption\">Ztmavnen\u00fd Ha cez PixelMath<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Odstr\u00e1nie hviezd<\/h4>\n\n\n\n<p>Aby som zachoval iba hviezdy z RGB sn\u00edmku a na Ha sn\u00edmku sa zachovali niektor\u00e9 hviezdy, tak tieto hviezdy som odstr\u00e1nil pomocou <strong>StarXTerminator <\/strong>procesu.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"765\" height=\"767\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-16.png\" alt=\"\" class=\"wp-image-219\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-16.png 765w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-16-300x300.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-16-150x150.png 150w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-16-299x300.png 299w\" sizes=\"auto, (max-width: 765px) 100vw, 765px\" \/><figcaption class=\"wp-element-caption\">Odstr\u00e1nen\u00e9 hviezdy z Ha pomocou StarXTerminator<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Zl\u00fa\u010denie Ha a RGB<\/h2>\n\n\n\n<p>Teraz prich\u00e1dza na rad zl\u00fa\u010dnie Ha a RGB_R dokopy. Na tento krok op\u00e4\u0165 posl\u00fa\u017ei PixelMath. V <strong>PixelMath <\/strong>som nastavil tieto \u00fadaje:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>od\u0161krtn\u00fa\u0165 <strong>Use a single RGB\/K expression<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>R\/K<\/strong>: $T + (Ha)<\/li>\n\n\n\n<li><strong>G<\/strong>: $T<\/li>\n\n\n\n<li><strong>B<\/strong>: $T + 0.2 * Ha<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>Z\u00e1stupn\u00fd znak $T znamen\u00e1 Target, teda cie\u013eov\u00fd sn\u00edmok.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"623\" height=\"385\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-18.png\" alt=\"\" class=\"wp-image-221\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-18.png 623w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-18-300x185.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-18-485x300.png 485w\" sizes=\"auto, (max-width: 623px) 100vw, 623px\" \/><figcaption class=\"wp-element-caption\">PixelMath a z\u00e1lo\u017eka R\/K<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"627\" height=\"389\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-19.png\" alt=\"\" class=\"wp-image-222\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-19.png 627w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-19-300x186.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-19-484x300.png 484w\" sizes=\"auto, (max-width: 627px) 100vw, 627px\" \/><figcaption class=\"wp-element-caption\">PixelMath a z\u00e1lo\u017eka G<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"389\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-20.png\" alt=\"\" class=\"wp-image-223\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-20.png 620w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-20-300x188.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-20-478x300.png 478w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><figcaption class=\"wp-element-caption\">PixelMath a z\u00e1lo\u017eka B<\/figcaption><\/figure>\n\n\n\n<p>Takto nastaven\u00fd proces PixelMath som cez trojuholn\u00edk v\u013eavo dole aplikoval na RGB sn\u00edmok (sn\u00edmok pred rozdelen\u00edm kan\u00e1lov). V\u00fdsledn\u00fd sn\u00edmok po tomto kroku:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"769\" height=\"770\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-21.png\" alt=\"\" class=\"wp-image-224\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-21.png 769w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-21-300x300.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-21-150x150.png 150w\" sizes=\"auto, (max-width: 769px) 100vw, 769px\" \/><figcaption class=\"wp-element-caption\">RGB sn\u00edmok po pridan\u00ed H alpha kan\u00e1lu<\/figcaption><\/figure>\n\n\n\n<p>A pre porovnanie p\u00f4vodn\u00fd RGB sn\u00edmok:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"761\" src=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-22.png\" alt=\"\" class=\"wp-image-225\" srcset=\"https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-22.png 764w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-22-300x300.png 300w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-22-150x150.png 150w, https:\/\/martin-in.space\/wp-content\/uploads\/2023\/08\/image-22-301x300.png 301w\" sizes=\"auto, (max-width: 764px) 100vw, 764px\" \/><figcaption class=\"wp-element-caption\">P\u00f4vodn\u00fd RGB sn\u00edmok<\/figcaption><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">Z\u00e1ver<\/h1>\n\n\n\n<p>Ako vidno, pridanie H alpha kan\u00e1lu do p\u00f4vodn\u00e9ho RGB sn\u00edmku m\u00f4\u017ee dan\u00fa sn\u00edmku o\u017eivi\u0165. Hlavne ak s\u00fa na nej objekty, ktor\u00e9 vy\u017earuj\u00fa aj v \u010diare H alpha\/beta alebo OIII.<\/p>\n\n\n\n<p>Tento sn\u00edmok ale e\u0161te nie je fin\u00e1lny, treba aplikova\u0165 na neho \u010fal\u0161ie \u00fapravy, ako histogram, satur\u00e1ciu, potla\u010denie \u0161umu, \u00fapravu kriviek a \u010fa\u013e\u0161ie. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>V tomto postupe by som uk\u00e1zal ako prid\u00e1vam H alphu kan\u00e1l do RGB sn\u00edmku. Nie je to dokonal\u00fd postup, ke\u010f\u017ee s touto tematikou sa len za\u010d\u00ednam zaobera\u0165. Postupom \u010dasu d\u00fafam, \u017ee sa mi podar\u00ed postup vylep\u0161i\u0165. Zatia\u013e vych\u00e1dzam z n\u00e1vodov, &hellip; <a href=\"https:\/\/martin-in.space\/index.php\/2023\/08\/10\/pridanie-h-alpha-do-rgb-v-pixinsight\/\">Pokra\u010dova\u0165 v \u010d\u00edtan\u00ed <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,12,11],"tags":[],"class_list":["post-202","post","type-post","status-publish","format-standard","hentry","category-astrofoto","category-pixinsight-spracovanie","category-spracovanie"],"_links":{"self":[{"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/posts\/202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/comments?post=202"}],"version-history":[{"count":4,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/posts\/202\/revisions"}],"predecessor-version":[{"id":317,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/posts\/202\/revisions\/317"}],"wp:attachment":[{"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/media?parent=202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/categories?post=202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/tags?post=202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}