{"id":19944,"date":"2020-03-11T00:59:56","date_gmt":"2020-03-11T04:59:56","guid":{"rendered":"https:\/\/sensing.konicaminolta.us\/learning-center\/color-measurement\/object-color-vs-source-color\/"},"modified":"2020-04-11T14:24:09","modified_gmt":"2020-04-11T18:24:09","slug":"object-color-vs-source-color","status":"publish","type":"color_measurement","link":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/","title":{"rendered":"Object Source vs. Source Color"},"content":{"rendered":"

[vc_row row_height_percent=”0″ override_padding=”yes” h_padding=”2″ top_padding=”0″ bottom_padding=”2″ overlay_alpha=”50″ gutter_size=”3″ column_width_percent=”100″ shift_y=”0″ z_index=”0″][vc_column width=”1\/1″][uncode_block id=”10959″ inside_column=”yes”][\/vc_column][\/vc_row][vc_row row_height_percent=”0″ override_padding=”yes” h_padding=”2″ top_padding=”1″ bottom_padding=”1″ overlay_alpha=”50″ gutter_size=”3″ column_width_percent=”100″ shift_y=”0″ z_index=”0″][vc_column column_width_percent=”100″ gutter_size=”2″ overlay_alpha=”50″ shift_x=”0″ shift_y=”0″ shift_y_down=”0″ z_index=”0″ medium_width=”0″ mobile_width=”0″ width=”1\/1″][vc_custom_heading heading_semantic=”h1″ text_size=”h3″ separator=”yes” separator_color=”yes”]Fonte de Luz do Objeto vs. Fonte de Luz da Cor[\/vc_custom_heading][\/vc_column][\/vc_row][vc_row unlock_row=”” row_height_percent=”0″ override_padding=”yes” h_padding=”2″ top_padding=”1″ bottom_padding=”2″ overlay_alpha=”50″ gutter_size=”3″ column_width_percent=”100″ shift_y=”0″ z_index=”0″ css=”.vc_custom_1583904558147{padding-top: 20px !important;}”][vc_column column_width_percent=”100″ gutter_size=”3″ overlay_alpha=”50″ shift_x=”0″ shift_y=”0″ shift_y_down=”0″ z_index=”0″ medium_width=”0″ mobile_width=”0″ width=”1\/2″ css=”.vc_custom_1583900873312{padding-bottom: 10px !important;}”][vc_column_text el_class=”text-block”]Diferen\u00e7as entre a cor do objeto e a cor da fonte de luz<\/strong>
\nDescrevemos anteriormente como \u00e9 feita a determina\u00e7\u00e3o da cor de um objeto. Todavia, existe uma diferen\u00e7a quando uma a cor \u00e9 criada por uma l\u00e2mpada, por exemplo. Chamamos isso de cor da fonte de luz. A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.<\/p>\n

Defini\u00e7\u00e3o das diferen\u00e7as<\/b>
\nExistem tr\u00eas fatores b\u00e1sicos envolvidos quando um ser humano observa a cor de um objeto. Eles s\u00e3o, a ilumina\u00e7\u00e3o, o objeto e a percep\u00e7\u00e3o do observador. Todavia quando uma fonte de luz \u00e9 observada, existem apenas dois fatores: a distribui\u00e7\u00e3o espectral de energia da fonte de luz e a percep\u00e7\u00e3o do observador. As f\u00f3rmulas desses conceitos est\u00e3o ilustradas a abaixo:<\/p>\n

\"Difference<\/b><\/p>\n

Para a cor de um objeto \u00e9 necess\u00e1ria a determina\u00e7\u00e3o e a avalia\u00e7\u00e3o da distribui\u00e7\u00e3o espectral dos iluminantes. Isso porque a cor muda com a mudan\u00e7a da fonte de ilumina\u00e7\u00e3o. Os iluminantes n\u00e3o s\u00e3o necess\u00e1rios quando medimos uma fonte de luz, uma vez que a cor da fonte de luz em si necessita ser determinada.<\/p>\n

Diferen\u00e7as de Defini\u00e7\u00e3o<\/b>
\nAs condi\u00e7\u00f5es geom\u00e9tricas de ilumina\u00e7\u00e3o e a recep\u00e7\u00e3o optica precisam ser consideradas pois a cor do objeto pode se modificar sob codi\u00e7\u00f5es diferentes. Foram descritas na p\u00e1gina 47 seis tipos de condi\u00e7\u00f5es definidas pela CIE. Essas condi\u00e7\u00f5es n\u00e3o determinam a cor da fonte de luz. Por\u00e9m, existem certas caracter\u00edsticas angulares nas quais as tonalidades variam dependendo o tipo de fonte de luz e do \u00e2ngulo de visualiza\u00e7\u00e3o, tais como nos LCDs (monitores de cristal l\u00edquido). Nesses casos o \u00e2ngulo de visualiza\u00e7\u00e3o deve ser fixado em um determinado valor.[\/vc_column_text][\/vc_column][vc_column column_width_percent=”100″ gutter_size=”3″ overlay_alpha=”50″ shift_x=”0″ shift_y=”0″ shift_y_down=”0″ z_index=”0″ medium_width=”0″ mobile_width=”0″ width=”1\/2″ css=”.vc_custom_1583900884120{padding-bottom: 10px !important;}”][vc_column_text el_class=”text-block”]Defini\u00e7\u00e3o das f\u00f3rmulas de cor de objetos<\/strong><\/p>\n

O espa\u00e7o de cor Hunter Lab foi desenvolvido em 1948 por R.S. Hunter como um espa\u00e7o de cor uniforme que pode ser lido diretamente de um color\u00edmetro fotoel\u00e9trico (m\u00e9todo tristimulus). Os valores entre este espa\u00e7o de cores s\u00e3o definidos pelas seguintes f\u00f3rmulas:<\/p>\n

\"\"<\/p>\n

Defini\u00e7\u00e3o das f\u00f3rmulas de cor de objetos<\/strong><\/p>\n

\"Object
\nUse a seguinte equa\u00e7\u00e3o para determinar o valor absoluto da quantidade de luz medida quando S(\u03bb) \u00e9 o valor absoluto da densidade de radia\u00e7\u00e3o do espectro do Espa\u00e7o de Cor XYZ. K=683 lm\/w<\/p>\n

Diferen\u00e7as de Defini\u00e7\u00e3o<\/b>
\nExistem v\u00e1rios m\u00e9todos comuns para descrever a fonte de luz numericamente. Elas incluem as coordenadas xy, a intensidade da cor CIE 1960 UCS (u, v), a intensidade da cor CIE 1976 UCS (u*, v*), (temperatura de cor) *[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"featured_media":0,"template":"","class_list":["post-19944","color_measurement","type-color_measurement","status-publish","hentry"],"acf":[],"yoast_head":"\r\nFonte de Luz do Objeto vs. Fonte de Luz da Cor | Konica Minolta Sensing<\/title>\r\n<meta name=\"description\" content=\"A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.\" \/>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/\" \/>\r\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Fonte de Luz do Objeto vs. Fonte de Luz da Cor | Konica Minolta Sensing\" \/>\r\n<meta property=\"og:description\" content=\"A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.\" \/>\r\n<meta property=\"og:url\" content=\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/\" \/>\r\n<meta property=\"og:site_name\" content=\"Konica Minolta Sensing\" \/>\r\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/KonicaMinoltaSensingAmericas\" \/>\r\n<meta property=\"article:modified_time\" content=\"2020-04-11T18:24:09+00:00\" \/>\r\n<meta property=\"og:image\" content=\"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/konicalogo-4rpp4s6552-1.png\" \/>\r\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\r\n\t<meta property=\"og:image:height\" content=\"743\" \/>\r\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\r\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\r\n<meta name=\"twitter:title\" content=\"Fonte de Luz do Objeto vs. Fonte de Luz da Cor | Konica Minolta Sensing\" \/>\r\n<meta name=\"twitter:description\" content=\"A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.\" \/>\r\n<meta name=\"twitter:site\" content=\"@KMSensingUS\" \/>\r\n<meta name=\"twitter:label1\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutos\" \/>\r\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/\",\"url\":\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/\",\"name\":\"Fonte de Luz do Objeto vs. Fonte de Luz da Cor | Konica Minolta Sensing\",\"isPartOf\":{\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/lc-color-object-vs-source-01.jpg\",\"datePublished\":\"2020-03-11T04:59:56+00:00\",\"dateModified\":\"2020-04-11T18:24:09+00:00\",\"description\":\"A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.\",\"breadcrumb\":{\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#primaryimage\",\"url\":\"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/lc-color-object-vs-source-01.jpg\",\"contentUrl\":\"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/lc-color-object-vs-source-01.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/sensing.konicaminolta.us\/br\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Object Source vs. Source Color\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/#website\",\"url\":\"https:\/\/sensing.konicaminolta.us\/br\/\",\"name\":\"Konica Minolta Sensing\",\"description\":\"Color, Light, and LED Measuring Instruments\",\"publisher\":{\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/sensing.konicaminolta.us\/br\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/#organization\",\"name\":\"Konica Minolta Sensing Americas\",\"url\":\"https:\/\/sensing.konicaminolta.us\/br\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/kmsa-vertical.png\",\"contentUrl\":\"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/kmsa-vertical.png\",\"width\":195,\"height\":135,\"caption\":\"Konica Minolta Sensing Americas\"},\"image\":{\"@id\":\"https:\/\/sensing.konicaminolta.us\/br\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/KonicaMinoltaSensingAmericas\",\"https:\/\/x.com\/KMSensingUS\",\"https:\/\/www.instagram.com\/kmsensingus\/\",\"http:\/\/www.linkedin.com\/company\/531676?trk=tyah\",\"https:\/\/www.pinterest.com\/KMSensingUS\/\",\"http:\/\/www.youtube.com\/KonicaMinoltaSense\"]}]}<\/script>\r\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Fonte de Luz do Objeto vs. Fonte de Luz da Cor | Konica Minolta Sensing","description":"A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/","og_locale":"pt_BR","og_type":"article","og_title":"Fonte de Luz do Objeto vs. Fonte de Luz da Cor | Konica Minolta Sensing","og_description":"A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.","og_url":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/","og_site_name":"Konica Minolta Sensing","article_publisher":"https:\/\/www.facebook.com\/KonicaMinoltaSensingAmericas","article_modified_time":"2020-04-11T18:24:09+00:00","og_image":[{"width":1280,"height":743,"url":"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/konicalogo-4rpp4s6552-1.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_title":"Fonte de Luz do Objeto vs. Fonte de Luz da Cor | Konica Minolta Sensing","twitter_description":"A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.","twitter_site":"@KMSensingUS","twitter_misc":{"Est. tempo de leitura":"3 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/","url":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/","name":"Fonte de Luz do Objeto vs. Fonte de Luz da Cor | Konica Minolta Sensing","isPartOf":{"@id":"https:\/\/sensing.konicaminolta.us\/br\/#website"},"primaryImageOfPage":{"@id":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#primaryimage"},"image":{"@id":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#primaryimage"},"thumbnailUrl":"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/lc-color-object-vs-source-01.jpg","datePublished":"2020-03-11T04:59:56+00:00","dateModified":"2020-04-11T18:24:09+00:00","description":"A seguir explicamos de forma simples as diferen\u00e7as entre a cor de um objeto e a cor da fonte de luz.","breadcrumb":{"@id":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#primaryimage","url":"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/lc-color-object-vs-source-01.jpg","contentUrl":"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/lc-color-object-vs-source-01.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/sensing.konicaminolta.us\/br\/learning-center\/color-measurement\/object-color-vs-source-color\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/sensing.konicaminolta.us\/br\/"},{"@type":"ListItem","position":2,"name":"Object Source vs. Source Color"}]},{"@type":"WebSite","@id":"https:\/\/sensing.konicaminolta.us\/br\/#website","url":"https:\/\/sensing.konicaminolta.us\/br\/","name":"Konica Minolta Sensing","description":"Color, Light, and LED Measuring Instruments","publisher":{"@id":"https:\/\/sensing.konicaminolta.us\/br\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sensing.konicaminolta.us\/br\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Organization","@id":"https:\/\/sensing.konicaminolta.us\/br\/#organization","name":"Konica Minolta Sensing Americas","url":"https:\/\/sensing.konicaminolta.us\/br\/","logo":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/sensing.konicaminolta.us\/br\/#\/schema\/logo\/image\/","url":"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/kmsa-vertical.png","contentUrl":"https:\/\/sensing.konicaminolta.us\/wp-content\/uploads\/kmsa-vertical.png","width":195,"height":135,"caption":"Konica Minolta Sensing Americas"},"image":{"@id":"https:\/\/sensing.konicaminolta.us\/br\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/KonicaMinoltaSensingAmericas","https:\/\/x.com\/KMSensingUS","https:\/\/www.instagram.com\/kmsensingus\/","http:\/\/www.linkedin.com\/company\/531676?trk=tyah","https:\/\/www.pinterest.com\/KMSensingUS\/","http:\/\/www.youtube.com\/KonicaMinoltaSense"]}]}},"_links":{"self":[{"href":"https:\/\/sensing.konicaminolta.us\/br\/wp-json\/wp\/v2\/color_measurement\/19944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sensing.konicaminolta.us\/br\/wp-json\/wp\/v2\/color_measurement"}],"about":[{"href":"https:\/\/sensing.konicaminolta.us\/br\/wp-json\/wp\/v2\/types\/color_measurement"}],"wp:attachment":[{"href":"https:\/\/sensing.konicaminolta.us\/br\/wp-json\/wp\/v2\/media?parent=19944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}