{"id":235614,"date":"2026-01-12T21:21:16","date_gmt":"2026-01-12T21:21:16","guid":{"rendered":"https:\/\/www.artenocturno.com\/?post_type=lesson&#038;p=235614"},"modified":"2026-01-25T13:36:11","modified_gmt":"2026-01-25T13:36:11","slug":"eliminar-dominante-verde-scnr","status":"publish","type":"lesson","link":"https:\/\/www.artenocturno.com\/en\/lesson\/eliminar-dominante-verde-scnr\/","title":{"rendered":"Eliminar dominante verde (SCNR)"},"content":{"rendered":"\n\n<figure class=\"wp-block-embed is-type-video is-provider-vimeo wp-block-embed-vimeo wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe src=\"https:\/\/player.vimeo.com\/video\/1153409542?dnt=1&amp;app_id=122963\" width=\"1080\" height=\"608\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\"><\/iframe>\n<\/div><\/figure>\n\n\n\n\n<h3 class=\"wp-block-heading\">Descripci\u00f3n de la Lecci\u00f3n<\/h3>\n\n\n\n<p>En astrofotograf\u00eda con c\u00e1mara a color, es muy com\u00fan que quede una dominante verde residual tras el apilado y, sobre todo, despu\u00e9s del estirado.<br>En esta lecci\u00f3n aprendes a neutralizar ese verde sin cargarte los colores reales del objeto, usando el ajuste <strong>Reducir verde<\/strong> con comportamiento tipo <strong>SCNR<\/strong>.<br>Adem\u00e1s, ver\u00e1s un flujo \u201cm\u00e1s pro\u201d para <strong>proteger nebulosas<\/strong>, aplicar el efecto solo al fondo mediante m\u00e1scara y dejar una integraci\u00f3n limpia.<br>Como extra, lo usar\u00e1s tambi\u00e9n para <strong>mejorar el color de las estrellas<\/strong> cuando se van a magenta o aparecen verdosas tras el procesado.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Lo que aprender\u00e1s<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aplicar <strong>Reducir verde (SCNR)<\/strong> en una capa nueva y ajustar la intensidad con <strong>opacidad<\/strong>.<\/li>\n\n\n\n<li>Repetir el ajuste varias veces cuando la dominante es fuerte, acumulando el efecto.<\/li>\n\n\n\n<li>Proteger la nebulosa, <strong>invertir la selecci\u00f3n<\/strong> y aplicar el ajuste solo al fondo con <strong>Apply Mask<\/strong>.<\/li>\n\n\n\n<li>Corregir zonas problem\u00e1ticas pintando en la m\u00e1scara e <strong>integrar<\/strong> difumin\u00e1ndola.<\/li>\n\n\n\n<li>Usar el mismo ajuste para devolver a las estrellas un color m\u00e1s natural (sin tratarlo como halo \u00f3ptico).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Consejo<\/h3>\n\n\n\n<p>Cuando trabajes \u201cm\u00e1s pro\u201d, <strong>difumina la m\u00e1scara s\u00ed o s\u00ed<\/strong> antes de decidir: es la diferencia entre un fondo neutral y un recorte evidente alrededor de nebulosas\/estructuras.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Checklist Pr\u00e1ctico<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Crear una capa nueva, aplicar <strong>Reducir verde (SCNR)<\/strong> y ajustar la fuerza con <strong>opacidad<\/strong>.<\/li>\n\n\n\n<li>Proteger nebulosa \u2192 feather varias veces \u2192 invertir selecci\u00f3n \u2192 <strong>Apply Mask<\/strong> \u2192 aplicar <strong>Reducir verde<\/strong> solo al fondo.<\/li>\n\n\n\n<li>Difuminar la m\u00e1scara y, si hace falta, repetir el proceso en una nueva capa y combinar hacia abajo cuando quede natural.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Glosario T\u00e9cnico<\/h3>\n\n\n\n<p><strong>Feather (desvanecer):<\/strong> Suaviza el borde de una selecci\u00f3n para que la transici\u00f3n de una m\u00e1scara no quede \u201ccortada\u201d.<\/p>\n\n\n\n<p><strong>Dominante verde (green cast):<\/strong> Tinte verdoso residual que suele quedarse en el fondo tras apilado y estirado, especialmente en c\u00e1maras a color.<\/p>\n\n\n\n<p><strong>SCNR:<\/strong> M\u00e9todo de reducci\u00f3n selectiva pensado para limpiar verde residual y equilibrar el color en astrofotograf\u00eda.<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"1080","_initial_content":"","_new_post":false,"_quiz_has_questions":false,"_lesson_complexity":"easy","_lesson_length":10,"_lesson_course":235519,"_lesson_preview":"preview"},"lesson-tag":[],"class_list":["post-235614","lesson","type-lesson","status-publish","hentry","module-correcciones-v3","post"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - 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