{"id":239,"date":"2008-03-15T23:56:25","date_gmt":"2008-03-15T22:56:25","guid":{"rendered":"http:\/\/jlggb.net\/blog\/?p=239"},"modified":"2010-12-27T14:17:04","modified_gmt":"2010-12-27T13:17:04","slug":"polychromie-vernaculaire","status":"publish","type":"post","link":"http:\/\/jlggb.net\/blog\/?p=239","title":{"rendered":"Polychromie vernaculaire (ocre-jaune, vert, rouge)"},"content":{"rendered":"<p>Au restaurant italien Okey, rue du Faubourg Saint-Antoine, cette rencontre de couleurs, pr\u00e9sente \u00e0 l&rsquo;esprit (voir la polychromie pour Isaline adapt\u00e9e de Le Corbusier).<\/p>\n<p><a title=\"\" href=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/retau_okey.jpg\" data-rel=\"lightbox-image-0\" data-imagelightbox=\"0\" data-rl_title=\"\" data-rl_caption=\"\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/retau_okey.jpg\" alt=\"retau_okey.jpg\" width=\"640\" height=\"480\" \/><\/a><br \/>\nVendredi 14 mars 2008, vers 11h15.<\/p>\n<p><a title=\"\" href=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/analyse-du-restaurant-okey.jpg\" data-rel=\"lightbox-image-1\" data-imagelightbox=\"1\" data-rl_title=\"\" data-rl_caption=\"\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/analyse-du-restaurant-okey.jpg\" alt=\"analyse-du-restaurant-okey.jpg\" width=\"640\" height=\"480\" \/><\/a><br \/>\nTentative d&rsquo;extraction des couleurs principales.<\/p>\n<p>Remarque 1&nbsp;: dans les <a title=\"Cruz-Diez\" href=\"http:\/\/www.cruz-diez.com\/\" target=\"_blank\">physichromies de Cruz-Diez<\/a>, et en particulier dans celle qui a \u00e9t\u00e9 adapt\u00e9e pour la couverture du catalogue <em>Cin\u00e9tisme-Spectacle-Environnement<\/em> de Grenoble (mai 1968), on constate, dans la juxtaposition de bandes rouges et vertes, l&rsquo;apparition virtuelle d&rsquo;une troisi\u00e8me couleur, le jaune-orange. D&rsquo;o\u00f9 la logique, dans la polychromie de Le Corbusier, d&rsquo;un jaune-orange pris comme base du rapprochement rouge-vert.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/cse_grenoble_1968.jpg\" data-rel=\"lightbox-image-2\" data-imagelightbox=\"2\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img decoding=\"async\" src=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/cruz-diez_1968.jpg\" alt=\"\" \/><\/a><br \/>\nConception de cette couverture&nbsp;: Frank Popper, Carlos Cruz-Diez, J.-L.B., 1968.<\/p>\n<p style=\"text-align: center;\">\n<p>Remarque 2&nbsp;: le site <a href=\"http:\/\/labs.ideeinc.com\/multicolour#colors=eaa925,c32a00,5e7932,090909;\" target=\"_blank\">labs.ideeinc.com<\/a> propose un instrument de s\u00e9lection d&rsquo;images, prises dans une banque de photos sur Flickr,  \u00e0 partir d&rsquo;une gamme de quatre couleurs. Ainsi, les quatre couleurs extraites seront r\u00e9inject\u00e9es dans une collecte&nbsp;:<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/alamy-set-copie.jpg\" data-rel=\"lightbox-image-3\" data-imagelightbox=\"3\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img decoding=\"async\" src=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/3colorsalamy.jpg\" alt=\"\" \/><\/a><\/p>\n<p>Remarque 3&nbsp;: cherchant ces couleurs sur le Web, plusieurs drapeaux arrivent, dont celui du Ghana.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/ghana.jpg\" alt=\"ghana.jpg\" \/><\/p>\n<p>Puis le fond de page d&rsquo;un site consacr\u00e9 au Ghana.<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" src=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/fond_ghana.jpg\" alt=\"fond_ghana.jpg\" \/><\/p>\n<p>Et puis on voit que la fen\u00eatre du syst\u00e8me Mac o\u00f9 nous sommes pr\u00e9sente elle m\u00eame ces quatre couleurs.<\/p>\n<p>Une chose est troublante&nbsp;: on cherche depuis longtemps \u00e0 trouver des liens qui conduisent d&rsquo;image en image sant faire appel au langage (un principe de reconnaissance des formes, donc). Mais finalement, m\u00eame si ces couleurs ne sont pas nomm\u00e9es, elles sont bel et bien d\u00e9sign\u00e9es par des codes. Ainsi, en RVB, le rouge du drapeau est [214, 1, 33], le jaune [253, 205, 1], le vert [99, 174, 32]. On n&rsquo;en sort pas, Rousseau nomme \u00e7a un \u00ab\u00a0suppl\u00e9ment\u00a0\u00bb. <img decoding=\"async\" src=\"http:\/\/jlggb.net\/blog\/wp-content\/uploads\/2008\/03\/jlggbblog.jpg\" alt=\"jlggbblog.jpg\" align=\"right\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Au restaurant italien Okey, rue du Faubourg Saint-Antoine, cette rencontre de couleurs, pr\u00e9sente \u00e0 l&rsquo;esprit (voir la polychromie pour Isaline adapt\u00e9e de Le Corbusier). Vendredi 14 mars 2008, vers 11h15. Tentative d&rsquo;extraction des couleurs principales. Remarque 1&nbsp;: dans les physichromies de Cruz-Diez, et en particulier dans celle qui a \u00e9t\u00e9 adapt\u00e9e pour la couverture du &hellip; <a href=\"http:\/\/jlggb.net\/blog\/?p=239\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Polychromie vernaculaire (ocre-jaune, vert, rouge)<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39,51],"tags":[],"class_list":["post-239","post","type-post","status-publish","format-standard","hentry","category-collection","category-couleur"],"_links":{"self":[{"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=\/wp\/v2\/posts\/239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=239"}],"version-history":[{"count":0,"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=\/wp\/v2\/posts\/239\/revisions"}],"wp:attachment":[{"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=239"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/jlggb.net\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}