{"id":6242,"date":"2020-09-02T06:09:05","date_gmt":"2020-09-02T04:09:05","guid":{"rendered":"http:\/\/www.arnaudom.fr\/wordpress\/?page_id=6242"},"modified":"2021-02-18T08:49:18","modified_gmt":"2021-02-18T07:49:18","slug":"etoilesoptimise","status":"publish","type":"page","link":"https:\/\/www.arnaudom.fr\/wordpress\/etoilesoptimise\/","title":{"rendered":"etoilesoptimise"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6242\" class=\"elementor elementor-6242\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e23ade1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e23ade1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dc3b56b\" data-id=\"dc3b56b\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4419453 elementor-widget elementor-widget-heading\" data-id=\"4419453\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Les masques (1\u00e8re partie) : les masques d'\u00e9toiles (2\/3)<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee588ee elementor-widget elementor-widget-heading\" data-id=\"ee588ee\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2-M\u00e9thode optimis\u00e9e avec le process StarMask<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0ed3b55 elementor-widget elementor-widget-text-editor\" data-id=\"0ed3b55\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Cette m\u00e9thode est celle qui est d\u00e9crite sur le forum de PixInsight (ici : <a href=\"http:\/\/pixinsight.com\/forum\/index.php?topic=6001.msg40792#msg40792\">http:\/\/pixinsight.com\/forum\/index.php?topic=6001.msg40792#msg40792<\/a>) par l&rsquo;un des ses cr\u00e9ateurs. Dans mes process icons c&rsquo;est ce que j&rsquo;ai appel\u00e9 la <strong><span class=\"gras\">m\u00e9thode optimis\u00e9e<\/span><\/strong>. Elle fonctionne bien sur les images non lin\u00e9aires, et c&rsquo;est exactement celle que j&rsquo;ai employ\u00e9e dans mon tutoriel sur le traitement des images non lin\u00e9aires <a href=\"http:\/\/www.arnaudom.fr\/wordpress\/reduction\">dans la partie qui traite de la r\u00e9duction d&rsquo;\u00e9toiles<\/a>. Je vais faire exactement la m\u00eame chose sur mon image de M16.<\/p><p>On commence tout d&rsquo;abord par cr\u00e9er un clone de l&rsquo;image en d\u00e9pla\u00e7ant son onglet sur l&rsquo;espace de travail. On obtient l&rsquo;image nomm\u00e9e <strong><span class=\"gras\">Non_lineaire_clone<\/span><\/strong>.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix339.jpg\" alt=\"Pix\" \/><\/div><p>Sur cette image, on applique le process <strong><span class=\"gras\">HDRMultiscaleTransform<\/span><\/strong>.<\/p><p>On r\u00e8gle le param\u00e8tre <strong><span class=\"gras\">Number of layers<\/span><\/strong> \u00e0 <strong><span class=\"gras\">4<\/span><\/strong>, <strong><span class=\"gras\">Number of iterations<\/span><\/strong> \u00e0 <strong><span class=\"gras\">3<\/span><\/strong> et on laisse les autres param\u00e8tres par d\u00e9faut.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix237.jpg\" alt=\"Pix\" \/><\/div><p>On applique le process en le d\u00e9posant sur l&rsquo;image.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix340.jpg\" alt=\"Pix\" \/><\/div><p>Le process a ainsi fortement accentu\u00e9 les d\u00e9tails de l&rsquo;image.<\/p><p>On utilise maintenant le process <strong><span class=\"gras\">MorphologicalTransformation<\/span><\/strong>.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix341.jpg\" alt=\"Pix\" \/><\/div><p>Dans le menu d\u00e9roulant <strong><span class=\"gras\">Operator :<\/span><\/strong> on a s\u00e9lectionn\u00e9 l&rsquo;option <strong><span class=\"gras\">Morphological Median<\/span><\/strong>. On l&rsquo;applique sur notre clone afin d&rsquo;en supprimer le bruit.<\/p><p>Maintenant on reprend le process <strong><span class=\"gras\">StarMask<\/span><\/strong>. On r\u00e8gle par exemple le <strong><span class=\"gras\">Noise treshhold<\/span><\/strong> \u00e0 <strong><span class=\"gras\">0.40000<\/span><\/strong> et on l&rsquo;applique cette fois<strong> <span class=\"gras\">sur le clone<\/span><\/strong>.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix342.jpg\" alt=\"Pix\" \/><\/div><p>Et voil\u00e0 le r\u00e9sultat obtenu :<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix343.jpg\" alt=\"Pix\" \/><\/div><p>On peut donc l&rsquo;appliquer sur l&rsquo;image :<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix344.jpg\" alt=\"Pix\" \/><\/div><p>On peut l&rsquo;inverser (<strong><span class=\"gras\">Mask\/Invert Mask<\/span><\/strong>) pour en v\u00e9rifier la qualit\u00e9.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix345.jpg\" alt=\"Pix\" \/><\/div><p>On peut aussi constater que les grosses \u00e9toiles ne sont pas prises en compte.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix346.jpg\" alt=\"Pix\" \/><\/div><p>On peut l\u00e0 aussi r\u00e9appliquer le <strong><span class=\"gras\">StarMask<\/span><\/strong> en mettant la valeur<strong> <span class=\"gras\">Scale<\/span><\/strong> \u00e0 <strong><span class=\"gras\">7<\/span><\/strong>, et nos \u00e9toiles seront maintenant incluses dans le masque.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/pix347.jpg\" alt=\"Pix\" \/><\/div><p>C&rsquo;est une m\u00e9thode rapide et efficace qui semble bien fonctionner sur les images non lin\u00e9aires.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1c45406 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1c45406\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-de16237\" data-id=\"de16237\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0e032e2 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"0e032e2\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a href=\"http:\/\/www.arnaudom.fr\/wordpress\/masqueetoiles\" class=\"elementor-button-link elementor-button elementor-size-sm\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-left\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Page 1<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-533d0c6\" data-id=\"533d0c6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-795a951 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"795a951\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a href=\"http:\/\/www.arnaudom.fr\/wordpress\/sansstarmask\" class=\"elementor-button-link elementor-button elementor-size-sm\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-right\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-right\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Page 3<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Les masques (1\u00e8re partie) : les masques d&rsquo;\u00e9toiles (2\/3) 2-M\u00e9thode optimis\u00e9e avec le process StarMask Cette m\u00e9thode est celle qui est d\u00e9crite sur le forum de PixInsight (ici : http:\/\/pixinsight.com\/forum\/index.php?topic=6001.msg40792#msg40792) par l&rsquo;un des ses cr\u00e9ateurs. Dans mes process icons c&rsquo;est ce que j&rsquo;ai appel\u00e9 la m\u00e9thode optimis\u00e9e. Elle fonctionne bien sur les images non lin\u00e9aires, &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.arnaudom.fr\/wordpress\/etoilesoptimise\/\"> <span class=\"screen-reader-text\">etoilesoptimise<\/span> Lire la suite\u00a0\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-6242","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/6242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=6242"}],"version-history":[{"count":6,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/6242\/revisions"}],"predecessor-version":[{"id":6981,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/6242\/revisions\/6981"}],"wp:attachment":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=6242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}