{"id":265,"date":"2025-12-16T18:19:02","date_gmt":"2025-12-16T17:19:02","guid":{"rendered":"https:\/\/eramkal.blogs.upv.es\/?p=265"},"modified":"2025-12-18T22:10:22","modified_gmt":"2025-12-18T21:10:22","slug":"practica-4-imagenes-parte-3","status":"publish","type":"post","link":"https:\/\/eramkal.blogs.upv.es\/?p=265","title":{"rendered":"P4. Im\u00e1genes Parte 3"},"content":{"rendered":"\n<p><strong>Edici\u00f3n de v\u00eddeo\u200b<\/strong><\/p>\n\n\n\n<p>Actividad&nbsp;A1. Completar el v\u00eddeo con unos cr\u00e9ditos Para finalizar los ejercicios realizados anteriormente, incorpore ahora unos cr\u00e9ditos (mediante el filtro de v\u00eddeo Texto) al final de la secuencia, donde se incluya el nombre de los miembros del grupo que realizan la pr\u00e1ctica, as\u00ed como el del programa de edici\u00f3n de v\u00eddeo y versi\u00f3n utilizado. Genere dos versiones diferentes de su v\u00eddeo, mediante la opci\u00f3n Exportar: una a plena resoluci\u00f3n, en formato MP4 (v\u00eddeo H.264, audio aac) y otra en formato WEBM (codec de v\u00eddeo libvpx y audio Vorbis) con resoluci\u00f3n reducida. Cada uno de los ficheros no debe superar los 20MB de tama\u00f1o. Si es necesario, disminuya el bitrate en las opciones del codec para conseguirlo. En su porfolio, ponga un enlace a ambos archivos. A continuaci\u00f3n se observan los videos con dos calidades distintas. <\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"720\" style=\"aspect-ratio: 1280 \/ 720;\" width=\"1280\" controls src=\"https:\/\/eramkal.blogs.upv.es\/wp-content\/uploads\/2025\/12\/gallicaballo-RamosKEbajo-2.mp4\"><\/video><\/figure>\n\n\n\n<p>Tama\u00f1o del archivo1 1,49 MB (1.571.812 bytes). Video corto con mejor resoluci\u00f3n de imagen<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"720\" style=\"aspect-ratio: 800 \/ 720;\" width=\"800\" controls src=\"https:\/\/eramkal.blogs.upv.es\/wp-content\/uploads\/2025\/12\/video1-RamosKEliviano-2.mp4\"><\/video><\/figure>\n\n\n\n<p>Tama\u00f1o del archivo 2 1,11 MB (1.164.689 bytes) Video largo con menor calidad de la imagen<\/p>\n\n\n\n<p>Banda sonora:<em> pista1_elPianoDeMiguelAsinsArbo_CD1_TresSonatas-1 editada mediante audacity<\/em><\/p>\n\n\n\n<p>Tipo de fichero: MP4 Video File VLC (.mp4) (WordPress no permite la publicaci\u00f3n del formato&nbsp;<em>Webm<\/em>)<\/p>\n\n\n\n<p><strong>Actividad&nbsp;A2. Chromakeying&nbsp;<\/strong><\/p>\n\n\n\n<p>En videos\\chromakeying\u00a0encontrar\u00e1\u00a0diferentes\u00a0v\u00eddeos\u00a0con\u00a0fondo\u00a0verde\u00a0que\u00a0puede\u00a0usar para\u00a0realizar\u00a0una composici\u00f3n\u00a0mediante\u00a0chromakeying.\u00a0Deber\u00e1\u00a0usar dos\u00a0pistas\u00a0de\u00a0v\u00eddeo. En la superior\u00a0debe\u00a0poner\u00a0el\u00a0v\u00eddeo\u00a0con partes\u00a0verdes\u00a0a\u00a0cromar. En la inferior,\u00a0el\u00a0v\u00eddeo\u00a0que\u00a0har\u00e1\u00a0de\u00a0fondo, del\u00a0que\u00a0se\u00a0ver\u00e1n\u00a0s\u00f3lo\u00a0las partes\u00a0que coincidan\u00a0con las\u00a0\u00e1reas\u00a0en\u00a0verde\u00a0de la\u00a0pista\u00a0superior. Si\u00a0el\u00a0v\u00eddeo\u00a0elegido\u00a0para la\u00a0capa\u00a0superior\u00a0tiene\u00a0unas\u00a0\u00e1reas verdes\u00a0de color\u00a0bastante\u00a0uniforme,\u00a0probablemente\u00a0obtendr\u00e1\u00a0un\u00a0buen\u00a0cromado\u00a0aplic\u00e1ndole\u00a0el\u00a0filtro\u00a0Clave de color:\u00a0Sencillo. Para\u00a0casos\u00a0m\u00e1s\u00a0complicados,\u00a0donde\u00a0las zonas a\u00a0cromar\u00a0tengan\u00a0un\u00a0verde\u00a0poco\u00a0uniforme\u00a0o sea muy\u00a0similar a\u00a0algunas\u00a0partes del\u00a0v\u00eddeo\u00a0que\u00a0no\u00a0deben\u00a0ser\u00a0cromadas,\u00a0obtendr\u00e1\u00a0mejores\u00a0resultados\u00a0con la\u00a0opci\u00f3n Clave de color: Avanzado y\u00a0probablemente\u00a0usando\u00a0su\u00a0opci\u00f3n\u00a0de\u00a0espacio\u00a0de color HSI (Tono-color-intensidad). Genere\u00a0un\u00a0v\u00eddeo\u00a0en\u00a0formato\u00a0MP4 o WEBM con\u00a0el\u00a0resultado\u00a0de\u00a0su\u00a0ejercicio\u00a0de\u00a0cromado\u00a0e\u00a0incl\u00fayalo\u00a0en\u00a0su porfolio. De nuevo, no\u00a0debe\u00a0superar\u00a0los\u00a020MB. El\u00a0videotutorial\u00a0[4]\u00a0puede\u00a0serle\u00a0de\u00a0ayuda\u00a0para\u00a0esta\u00a0actividad.<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"360\" style=\"aspect-ratio: 640 \/ 360;\" width=\"640\" controls src=\"https:\/\/eramkal.blogs.upv.es\/wp-content\/uploads\/2025\/12\/cromovideo2-erk25.mp4\"><\/video><\/figure>\n\n\n\n<p>Video Chromakeying Titulo: \u00abAuroras boreales\u00bb Elaborado con el software Shotcut (open data)<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Edici\u00f3n de v\u00eddeo\u200b Actividad&nbsp;A1. Completar el v\u00eddeo con unos cr\u00e9ditos Para finalizar los ejercicios realizados anteriormente, incorpore ahora unos cr\u00e9ditos (mediante el filtro de v\u00eddeo Texto) al final de la secuencia, donde se incluya el nombre de los miembros del grupo que realizan la pr\u00e1ctica, as\u00ed como el del programa de edici\u00f3n de v\u00eddeo y [&hellip;]<\/p>\n","protected":false},"author":58150,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,15,1],"tags":[4,31,12,33,28],"class_list":["post-265","post","type-post","status-publish","format-standard","hentry","category-audio-audacity","category-imagen","category-sin-categoria","tag-adh","tag-audio","tag-imagen","tag-mp4-webm","tag-wordpress"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P4. 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