{"id":26825,"date":"2021-11-04T17:27:08","date_gmt":"2021-11-04T17:27:08","guid":{"rendered":"https:\/\/adenilsongiovanini.com.br\/blog\/?p=26825"},"modified":"2022-08-24T12:10:09","modified_gmt":"2022-08-24T12:10:09","slug":"imagens-ndvi-o-que-sao-e-como-produzir","status":"publish","type":"post","link":"https:\/\/adenilsongiovanini.com.br\/blog\/imagens-ndvi-o-que-sao-e-como-produzir\/","title":{"rendered":"Imagens NDVI?"},"content":{"rendered":"<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"><em><strong>Imagens NDVI<\/strong><\/em>, voc\u00ea acabou de colocar suas 2 m\u00e3os em um artigo definitivo a respeito do tema.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Com a leitura do mesmo voc\u00ea aprender\u00e1:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">O que s\u00e3o <strong>imagens NDVI<\/strong>;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Como este \u00edndice de vegeta\u00e7\u00e3o \u00e9 calculado;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Quais as <strong>aplica\u00e7\u00f5es<\/strong> do mesmo;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Qual a <strong>revolu\u00e7\u00e3o que est\u00e1 acontecendo<\/strong> e como voc\u00ea <span style=\"text-decoration: underline;\"><em>lucrar com a mesma<\/em><\/span>;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">O que s\u00e3o <strong>\u00edndices de vegeta\u00e7\u00e3o<\/strong>;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Como gera\u00e7\u00e3o de imagens NDVI a partir de imagens de diferentes sat\u00e9lites e;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Como produzir imagens NDVI no QGIS.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Prossiga a leitura com m\u00e1xima aten\u00e7\u00e3o. <\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>O que s\u00e3o imagens NDVI<\/strong><\/span><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-26327\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/indice-de-vegetacao-ndvi.png\" alt=\"imagens ndvi\" width=\"580\" height=\"593\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/indice-de-vegetacao-ndvi.png 580w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/indice-de-vegetacao-ndvi-293x300.png 293w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">O <strong>NDVI<\/strong> \u00e9 um dos <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/indice-de-vegetacao-os-4-mais-utilizados\/\">\u00edndices de vegeta\u00e7\u00e3o<\/a><\/span> mais conhecido e utilizado.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A <strong>sigla NDVI<\/strong> \u00e9 um acr\u00f4nimo a express\u00e3o inglesa <em>Normalized Difference Vegetation Index, a qual <\/em>pode ser traduzida como <strong>\u00cdndice de Vegeta\u00e7\u00e3o por Diferen\u00e7a Normalizada<\/strong>. <\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Por causa disso, este \u00edndice tamb\u00e9m costuma ser chamado de <strong>IVDN<\/strong>. Por\u00e9m, esta sigla \u00e9 raramente utilizada, sendo que este \u00edndice \u00e9 mais conhecido pela sigla em ingl\u00eas.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Com a populariza\u00e7\u00e3o do <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/mapeamento-com-drones-conheca-as-7-etapas\/\">mapeamento com drones<\/a><\/span> e da utiliza\u00e7\u00e3o de sensores em equipamentos agr\u00edcolas, este \u00edndice se popularizou nos \u00faltimos anos.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-size: 24px;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Que an\u00e1lises as imagens NDVI possibilitam<\/span><\/strong><\/span><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-26819\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/ndvi.gif\" alt=\"an\u00e1lises utilizando imagens NDVI\" width=\"595\" height=\"422\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">As <strong>imagens NDVI<\/strong> possibilitam:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A identifica\u00e7\u00e3o de d\u00e9ficit h\u00eddrico;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A exist\u00eancia de danos causados por pragas;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Estimar-se a produtividade da lavoura;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"> Etc.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A grande vantagem da utiliza\u00e7\u00e3o de imagens NDVI \u00e9 que com a utiliza\u00e7\u00e3o do <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/sensoriamento-remoto\/\">sensoriamento remoto<\/a><\/span>, atrav\u00e9s da <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/levantamento-topografico-drone\/\">utiliza\u00e7\u00e3o de drones<\/a><\/span>, as imagens resultantes da utiliza\u00e7\u00e3o deste \u00edndice podem ser geradas com certa frequ\u00eancia.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Este fator possibilita a identifica\u00e7\u00e3o de doen\u00e7as e de problemas causados pela falta de nutrientes de uma maneira r\u00e1pida, o que diminui as perdas e aumenta a produtividade.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Por causa disso, o <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/ndvi-o-que-e-e-como-funciona\/\">\u00edndice NDVI<\/a><\/span> \u00e9 muito utilizado na <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/agropos.com.br\/o-que-e-agricultura-de-precisao\/\">agricultura de precis\u00e3o<\/a><\/span>.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Na realidade, embora a agricultura de precis\u00e3o seja a \u00e1rea que mais utiliza este \u00edndice de vegeta\u00e7\u00e3o, o mesmo tamb\u00e9m <strong>\u00e9 muito utilizado em estudos ambientais diversos<\/strong>.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Isso porque ele possibilita diferentes tipos de an\u00e1lises.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Funcionamento do NDVI<\/span><\/strong><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-26821\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/NDVI-indice.png\" alt=\"funcionamento do \u00cdndice de Vegeta\u00e7\u00e3o por Diferen\u00e7a Normalizada\" width=\"760\" height=\"417\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/NDVI-indice.png 776w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/NDVI-indice-300x165.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/NDVI-indice-768x422.png 768w\" sizes=\"(max-width: 760px) 100vw, 760px\" \/><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">O <span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/ndvi-significado-o-que-e-e-como-calcular\/\" style=\"color: #0000ff;\">NDVI<\/a><\/span> analisa a <strong>resposta espectral das plantas<\/strong> nas bandas do vermelho e do infravermelho pr\u00f3ximo. <\/span><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">O mesmo possui mais de 40 anos desde sua cria\u00e7\u00e3o, por\u00e9m, somente nos \u00faltimos anos que passou a ser amplamente utilizado.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Isso porque at\u00e9 ent\u00e3o a utiliza\u00e7\u00e3o do mesmo exigia tecnologias e equipamentos demasiadamente caros.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A f\u00f3rmula utilizada para o c\u00e1lculo do mesmo \u00e9:<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-20639\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/ndvi.png\" alt=\"indices de vegeta\u00e7\u00e3o ndvi\" width=\"193\" height=\"107\" \/><\/p>\n<p style=\"text-align: left;\">\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">No caso, IVP significa infra vermelho pr\u00f3ximo e V significa vermelho.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Ou seja, a f\u00f3rmula acima nada mais \u00e9 do que uma raz\u00e3o entre as reflect\u00e2ncias no infra vermelho pr\u00f3ximo e no vermelho, sendo que a mesma gera valores que variam entre -1 e 1, onde que:<\/span><\/p>\n<ul>\n<li style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Valores pr\u00f3ximos de 1 indicam uma vegeta\u00e7\u00e3o ativa e saud\u00e1vel e;<\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Valores pr\u00f3ximos a 0 indicam a presen\u00e7a de solo exposto ou que a vegeta\u00e7\u00e3o est\u00e1 menos ativa ou senescente.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-size: 24px;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Imagens NDVI &#8211; Exemplo de resultado obtido com a utiliza\u00e7\u00e3o deste \u00edndice<\/span><\/strong><\/span><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Veja na imagem abaixo, uma <strong>compara\u00e7\u00e3o entre 2 plantas<\/strong> e seus respectivos valores de NDVI.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-20640\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/comparacao-entre-plantas-e-seus-valores-de-NDVI.jpg\" alt=\"exemplo pr\u00e1tico do indice de vegeta\u00e7\u00e3o ndvi\" width=\"350\" height=\"389\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/comparacao-entre-plantas-e-seus-valores-de-NDVI.jpg 350w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/comparacao-entre-plantas-e-seus-valores-de-NDVI-270x300.jpg 270w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/comparacao-entre-plantas-e-seus-valores-de-NDVI-320x356.jpg 320w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Perceba que a <strong>planta sadia ficou com um valor mais pr\u00f3ximo de 1<\/strong>, enquanto que a planta que est\u00e1 sofrendo devido a uma seca, ficou com um valor de NDVI pr\u00f3ximo a zero.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-size: 24px;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Aplica\u00e7\u00f5es das imagens NDVI na agricultura<\/span><\/strong><\/span><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Entre as <strong>aplica\u00e7\u00f5es<\/strong> mais comuns das imagens NDVI na <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/drone-para-agricultura-modelos-e-aplicacoes\/\">agricultura com drones<\/a><\/span> temos:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Detec\u00e7\u00e3o de secas;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Estima\u00e7\u00e3o da produtividade;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Monitoramento h\u00eddrico;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Detec\u00e7\u00e3o de pragas;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Monitoramento de lavouras e<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Identifica\u00e7\u00e3o de anomalias na planta\u00e7\u00e3o.<\/span><\/li>\n<\/ul>\n<h2><\/h2>\n<h2 style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"><span style=\"font-size: 24px;\"><strong>\u00cdndice de vegeta\u00e7\u00e3o &#8211; Entenda a revolu\u00e7\u00e3o que est\u00e1 acontecendo e como voc\u00ea pode lucrar com a mesma<\/strong><\/span><\/span><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-25711\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/levantamento-planialtimetrico-com-drone-780x471.png\" alt=\"imagens ndvi - Uma revolu\u00e7\u00e3o est\u00e1 acontecendo\" width=\"780\" height=\"471\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/levantamento-planialtimetrico-com-drone-780x471.png 780w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/levantamento-planialtimetrico-com-drone-300x181.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/levantamento-planialtimetrico-com-drone-768x464.png 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/levantamento-planialtimetrico-com-drone-1536x928.png 1536w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/10\/levantamento-planialtimetrico-com-drone.png 1796w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Na realidade, uma <span style=\"text-decoration: underline;\"><em>revolu\u00e7\u00e3o est\u00e1 acontecendo<\/em><\/span> neste exato momento. E a <strong>boa not\u00edcia<\/strong> \u00e9 que voc\u00ea pode lucrar alto com a mesma.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Isso porque nos \u00faltimos anos, os<span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/mapeamento-com-drones-conheca-as-7-etapas\/\" style=\"color: #0000ff;\"> drones<\/a><\/span> se popularizaram, o que barateou a utiliza\u00e7\u00e3o de \u00edndices de vegeta\u00e7\u00e3o.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Isso fez com que termos at\u00e9 ent\u00e3o conhecidos por um seleto grupo de profissionais da \u00e1rea se popularizassem, fazendo com que diversas siglas passassem a fazer parte do dia a dia dos profissionais da \u00e1rea.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Como exemplos temos:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">IFV;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">VARI;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"> NDVI e;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"> NDRE.<\/span><\/li>\n<\/ul>\n<p><strong><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">E qual a boa not\u00edcia?<\/span><\/strong><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Simples, se voc\u00ea souber aproveitar esta oportunidade, poder\u00e1 lucrar alto com a presta\u00e7\u00e3o de servi\u00e7os, principalmente de <strong>Agricultura de precis\u00e3o<\/strong>.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Isso porque a populariza\u00e7\u00e3o dos drones tornou barato a gera\u00e7\u00e3o de \u00edndices e vegeta\u00e7\u00e3o. Ou seja,<strong> voc\u00ea pode prestar novos servi\u00e7os para seu clientes<\/strong>, obtendo <strong>recorr\u00eancia de faturamento<\/strong>.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Isso porque voc\u00ea ir\u00e1 fazer voos a cada uma ou 2 semanas, gerando imagens NDVI que ajudar\u00e3o seus clientes no processo de tomada de decis\u00e3o.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Naturalmente, para prestar este servi\u00e7o para seus clientes, voc\u00ea precisar\u00e1 de um drone com uma c\u00e2mera pr\u00f3pria e de um software especializado.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Por\u00e9m, por menos de R$ 30.00,00 reais, voc\u00ea poder\u00e1 comprar uma <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/camera-multiespectral-o-que-sao-e-suas-aplicacoes\/\">c\u00e2mera multiespectral<\/a><\/span> e gerar uma s\u00e9rie de \u00edndices de vegeta\u00e7\u00e3o.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Na realidade, existem servi\u00e7os que voc\u00ea pode prestar mesmo com a utiliza\u00e7\u00e3o de uma <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/camera-para-drone-os-3-principais-tipos\/\">c\u00e2mera RGB<\/a><\/span>. Isso porque o \u00edndice VARI pode ser gerado com uma c\u00e2mera RGB.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-size: 24px;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Imagens NDVI &#8211; O que s\u00e3o os \u00edndice de vegeta\u00e7\u00e3o<\/span><\/strong><\/span><\/h2>\n<div id=\"cb-featured-image\" class=\"cb-fis cb-fis-block-standard\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-20638\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/reflectancia-da-vegetacao.jpg\" alt=\"reflect\u00e2ncia da vegeta\u00e7\u00e3o\" width=\"554\" height=\"600\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/reflectancia-da-vegetacao.jpg 554w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/reflectancia-da-vegetacao-277x300.jpg 277w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/reflectancia-da-vegetacao-320x347.jpg 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/06\/reflectancia-da-vegetacao-360x390.jpg 360w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/><\/div>\n<section class=\"cb-entry-content clearfix\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\">\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Os <strong>\u00edndice de vegeta\u00e7\u00e3o<\/strong> s\u00e3o <strong><em>modelos matem\u00e1ticos desenvolvidos a partir da<\/em> reflect\u00e2ncia da vegeta\u00e7\u00e3o<\/strong>. <\/span><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Ao integrar a reflect\u00e2ncia de duas ou mais bandas espectrais, ou comprimentos de ondas, os \u00edndice de vegeta\u00e7\u00e3o conseguem real\u00e7ar determinadas caracter\u00edsticas.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Existem v\u00e1rios <strong>\u00edndices de vegeta\u00e7\u00e3o<\/strong>, sendo que conforme mostrei anteriormente, os <strong>mais utilizados<\/strong> s\u00e3o:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">NDVI;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">EVI;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">SAVI e;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">VARI.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Cada um destes \u00edndices possui suas pr\u00f3prias aplica\u00e7\u00f5es e funcionalidades, sendo que os mesmos s\u00e3o mundialmente utilizados para as mais diversas aplica\u00e7\u00f5es.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-size: 24px;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Gera\u00e7\u00e3o de imagens NDVI a partir de imagens de sat\u00e9lite<\/span><\/strong><\/span><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-26823\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/ndvi-imagem-de-satelite.png\" alt=\"imagens ndvi a partir de imagens de sat\u00e9lite\" width=\"310\" height=\"310\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/ndvi-imagem-de-satelite.png 310w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/ndvi-imagem-de-satelite-300x300.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/11\/ndvi-imagem-de-satelite-150x150.png 150w\" sizes=\"(max-width: 310px) 100vw, 310px\" \/><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"http:\/\/www.engesat.com.br\/\">engesat<\/a><\/span> possui um <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"http:\/\/www.engesat.com.br\/softwares\/global-mapper\/calculo-do-indice-de-vegetacao-ndvi-no-global-mapper\/\" rel=\"nofollow noreferrer\">artigo fabuloso<\/a><\/span> a respeito do tema. No mesmo, o Laurent trouxe uma lista dos sat\u00e9lites, suas resolu\u00e7\u00f5es espaciais e bandas que devem ser utilizadas. Segue a mesma:<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">No <strong>Landsat 8<\/strong>, de 30 m de resolu\u00e7\u00e3o<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 4 = Vermelho : 640-690 nm<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 5 = Infravermelho pr\u00f3ximo: 850-880 nm<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\"><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">No <\/span><strong style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">Pleiades<\/strong><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">, de 2 m de resolu\u00e7\u00e3o<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 3 = Vermelho : 600\u2013720 nm<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 4 = Infravermelho pr\u00f3ximo: 750\u2013950 nm<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\"><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">No <\/span><strong style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">World View 2<\/strong><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">, de 2 m de resolu\u00e7\u00e3o<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 3 = Vermelho : 630-690 nm<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 4 = Infravermelho pr\u00f3ximo: 770\u2013895 nm<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\"><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">No <\/span><strong style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">Geoeye<\/strong><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">, de 2 m de resolu\u00e7\u00e3o<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 3 = Vermelho : 625-695 nm<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 4 = Infravermelho pr\u00f3ximo: 760-900 nm<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\"><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">No <\/span><strong style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">Triplesat<\/strong><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">, de 4 m de resolu\u00e7\u00e3o<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 3 = Vermelho : 600-670 nm<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 4 = Infravermelho pr\u00f3ximo: 760-910 nm<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\"><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">No <\/span><strong style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">RapidEye<\/strong><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\"> de 5 m de resolu\u00e7\u00e3o<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 3 = Vermelho : 630-690 nm<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Banda 4 = Infravermelho pr\u00f3ximo: 760-880 nm<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-size: 24px;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Como produzir imagens NDVI no QGIS<\/span><\/strong><\/span><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">O Elder Costa, produziu um v\u00eddeo mostrando como gerar imagens NDVI no QGIS utilizando imagens <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/landsat-8\/\">Landsat 8<\/a><\/span>. Segue o mesmo:<\/span><\/p>\n<p><center><iframe width=\"728\" height=\"410\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CIJgttU-26E\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/center><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">V\u00eddeo a respeito de \u00edndices da vegeta\u00e7\u00e3o. <\/span><\/p>\n<p><center><iframe width=\"728\" height=\"410\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/D8NDebqBAdY\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/center><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">\u00c9 isso por este artigo. <\/span><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Lembrando que eu tamb\u00e9m possuo uma s\u00e9rie de <strong>cursos pr\u00e1ticos e de livros<\/strong>.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Se voc\u00ea quer<strong> MERGULHAR FUNDO e aprender a prestar servi\u00e7os com grande velocidade e com seguran\u00e7a<\/strong>, <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/cursos-online\/\">acesse este link<\/a><\/span> e conhe\u00e7a os mesmos.<\/span><\/figure>\n<figure><\/figure>\n<figure class=\"aligncenter\"><span style=\"color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; line-height: 1.3;\">Entre eles, o <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/curso-de-autocad-para-topografia\/\" target=\"_blank\" rel=\"noopener noreferrer\">Curso de Confec\u00e7\u00e3o de Plantas Topogr\u00e1ficas<\/a><\/span>. <span style=\"color: #000000;\">Um <\/span><\/span><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; line-height: 1.3;\">curso pr\u00e1tico <\/span><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; line-height: 1.3;\">com o qual voc\u00ea vai <strong>aprender a produzir as 15 diferentes plantas produzidas em um escrit\u00f3rio de topografia<\/strong>.<\/span><\/span><\/figure>\n<figure class=\"aligncenter\"><a href=\"https:\/\/adenilsongiovanini.com.br\/curso-de-autocad-para-topografia\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"aligncenter wp-image-31689\" src=\"https:\/\/adenilsongiovanini.com.br\/wp-content\/uploads\/2022\/07\/planta-de-topografia-1024x612.png\" alt=\"\" width=\"770\" height=\"460\" \/><\/a> <span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Clique <a href=\"https:\/\/adenilsongiovanini.com.br\/curso-de-autocad-para-topografia\/\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color: #0000ff;\">neste link<\/span><\/a> e conhe\u00e7a melhor o mesmo.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Gratid\u00e3o por voc\u00ea ter lido o artigo. \ud83d\ude4f<\/span><\/p>\n<p><center><\/center><\/figure>\n<\/div>\n<\/section>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>Domine a Opera\u00e7\u00e3o de Drones Atrav\u00e9s de um Livro Formado Por <\/strong><\/span><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>E<\/strong><\/span><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>xemplos Pr\u00e1ticos e <\/strong><\/span><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>Estudos de Caso <\/strong><\/span><\/h2>\n<h2 style=\"text-align: center;\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-25478\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-780x434.png\" alt=\"livro drone topografia\" width=\"780\" height=\"434\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-780x434.png 780w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-300x167.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-768x427.png 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-350x195.png 350w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones.png 1405w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A <span style=\"text-decoration: underline;\"><em>1 clique de dist\u00e2ncia de voc\u00ea<\/em><\/span> encontra-se um livro com <strong>os Conhecimentos Que Voc\u00ea Precisa Para Operar Drones Com Grande Velocidade e Com Seguran\u00e7a!<\/strong><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">O mesmo \u00e9 formado por 9 cap\u00edtulos estrategicamente estruturados. <\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Se voc\u00ea quer <em>(ou precisa)<\/em> dominar a opera\u00e7\u00e3o de drones, este livro servir\u00e1 como uma luva para voc\u00ea. <\/span><\/p>\n<p><span style=\"font-size: 20px;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">D\u00ea uma espiadinha no sum\u00e1rio do mesmo:<\/span><\/span><\/p>\n<p><center><iframe width=\"95%\" height=\"880\" src=\"https:\/\/drive.google.com\/file\/d\/142hFJEIc8YQTefKBBqcm5WIq3kR4hhX8\/preview\" data-mce-fragment=\"1\"><\/iframe><\/center><\/p>\n<p><span style=\"font-size: 20px;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Para conhecer melhor a estrutura do livro e os 3 b\u00f4nus que voc\u00ea ganhar\u00e1 juntamente com o mesmo \u00e9 s\u00f3 clicar no bot\u00e3o abaixo:<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/adenilsongiovanini.com.br\/livro-topografia-com-drones\/\" class=\"su-button su-button-style-3d\" style=\"color:#000000;background-color:#2BCC2F;border-color:#23a426;border-radius:13px\" target=\"_blank\" rel=\"nofollow\" id=\"1\"><span style=\"color:#000000;padding:0px 32px;font-size:23px;line-height:46px;border-color:#6bdc6e;border-radius:13px;text-shadow:0px 0px 0px #000000\"> &gt; Quero Conhecer Melhor o Livro e Adquirir Minha C\u00f3pia do Mesmo&#8230;<\/span><\/a><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Imagens NDVI, voc\u00ea acabou de colocar suas 2 m\u00e3os em um artigo definitivo a respeito do tema. Com a leitura do mesmo voc\u00ea aprender\u00e1: O que s\u00e3o imagens NDVI; Como este \u00edndice de vegeta\u00e7\u00e3o \u00e9 calculado; Quais as aplica\u00e7\u00f5es do mesmo; Qual a revolu\u00e7\u00e3o que est\u00e1 acontecendo e como voc\u00ea [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":26826,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[13,56],"tags":[],"class_list":["post-26825","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arcgis","category-sensoriamento-remoto"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Imagens NDVI? - Adenilson Giovanini<\/title>\n<meta name=\"description\" content=\"Descubra o que s\u00e3o imagens NDVI, quais suas aplica\u00e7\u00f5es e como produzir a partir de imagens de sat\u00e9lite no QGIS. 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