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Sonstiges >> Off Topic > phyton??? o.0

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|LR|Cooper

19.11.2011 um 20:53

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Clan: Dumme Dorfbauern
Postings: 885

Mal ne Frage an die Cracks hier im Verein oder auch sonst wo... kann jemand von euch Phyton programmieren? Hab hier folgende Aufgabe und kein Plan:

Video-Konverter haben die Aufgabe, Einzelbilder eines Videodatenstroms einzulesen und in ein anderes
Format zu transportieren. Beispielsweise kann ein unkomprimiertes Video als Quelle dienen welches
dann in ein MPG-Video gewandelt wird. Zu Beginn m¨ussen diese Konverter-Programme oftmals eine
Farbraumtransformation vornehmen. In dieser Aufgabe sollen RGB-Einzelbilder in den YUV-Farbraum
konvertiert werden.
Schreiben Sie hierzu ein Python-Programm welches ein BMP-Bild (im RGB-Modus) einlesen kann und
zeilenweise die Farbwerte der einzelnen Pixel in RGB ausgibt. Berechnen Sie nun f¨ur die einzelnen Pixel
die YUV-Werte und geben Sie diese ebenfalls aus.
Benutzen Sie dazu folgende N¨aherung:
y = r * 0:299000 + g * 0:587000 + b * 0:114000
u = r * -0:168736 + g * -0:331264 + b * 0:500000 + 128
v = r * 0:500000 + g * -0:418688 + b * -0:081312 + 128
Was bewirkt der Summand 128?

Jemand der sich auskennt und helfen kann?
__________________
#LANrena Neustetten e.V. - Mitglied
#LANrena - Pixelschubbser
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dotDatabase::connect -> d030eee4@localhost 0.004608 - dotDatabase::select -> database: d030eee4 0.004715 - dotDatabase::query -> SELECT `code` FROM `country_ip2code` WHERE 3628718136 BETWEEN ip_from AND ip_to 0.004849 - dotSession::start -> update current session online user infos 0.004864 - dotDatabase::query -> UPDATE session SET lastactivity = 1766023268, userid = 0, site = 'https://lanrena.christoph-raible.de/forum/thread/1237', host = '216.73.216.56', dns = '216.73.216.56', countrycode = 'US', hits = hits + 1 WHERE hash = '1c997746e3fd81ea58849762b34b9ace' 0.005000 - dotSession::start -> no session found in db == insert new db sesssion 0.005015 - dotDatabase::query -> INSERT INTO `session`SET hash = '1c997746e3fd81ea58849762b34b9ace', lastactivity = 1766023268, userid = 0, site = 'https://lanrena.christoph-raible.de/forum/thread/1237', referer = '', useragent = 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)', host = '216.73.216.56', dns = '216.73.216.56', countrycode = 'US', hits = 1 0.005907 - 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admin::getInstance -> do 0.011765 - admin::hasRight -> check for adminright: >0:0 & 32< FALSE 0.011789 - admin::getInstance -> do 0.011797 - admin::hasRight -> check for adminright: >0:0 & 16777216< FALSE 0.011801 - admin::getInstance -> do 0.011808 - admin::hasRight -> check for adminright: >0:0 & 64< FALSE 0.011825 - admin::getInstance -> do 0.011832 - admin::hasRight -> check for adminright: >0:0 & 32< FALSE 0.011837 - admin::getInstance -> do 0.011843 - admin::hasRight -> check for adminright: >0:0 & 16777216< FALSE 0.011847 - admin::getInstance -> do 0.011854 - admin::hasRight -> check for adminright: >0:0 & 64< FALSE 0.011864 - dotCommon::classload -> require: /www/htdocs/w00f1046/includes/class.html.php 0.012473 - dotDatabase::query -> SELECT title FROM forum_cat WHERE catid=3 0.012530 - dotDatabase::query -> UPDATE forum_thread SET hits=hits+1 WHERE threadid='1237' 0.012607 - dotDatabase::query -> SELECT user_id FROM user_orga WHERE display_team=1 0.012673 - FORUM::showthread -> query all postings 0.012682 - 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dotDatabase::query -> SELECT codetag, codereplacement, twoparams FROM html_code 0.013766 - HTML::encode -> replace run 1 0.013907 - HTML::encode -> replace run 2 0.013961 - HTML::template -> template: >forum_postingpart< 0.014036 - HTML::template -> template: >forum_postingindex< 0.014086 - FORUM::showthread -> check for moderator utils 0.014093 - FORUM::update_visit -> forumid: 6 threadid: 1237 posttime: 2011-11-19 20:53:42 0.014112 - GLOBAL::end userspace -> --------------------------------------------- 0.014116 - PAGE::render -> start rendering page layout 0.014120 - USER::check_for_new_messages -> return 0.014126 - dotSession::getInstance -> do 0.014146 - PAGE::get_boxes -> -------- side=left 0.014157 - dotCommon::classload -> require: /www/htdocs/w00f1046/includes/class.cbox.php 0.014921 - PAGE::get_boxes -> -------- call: left::menu_main 0.014932 - CBOX::menu -> generate Menu Box >news< 0.014942 - HTML::template -> template: >box_menu< 0.014995 - HTML::template_exists -> search: >page_box_left< == 1 0.015011 - HTML::template -> template: >page_box_left< 0.015049 - PAGE::get_boxes -> -------- call: left::menu_site 0.015057 - CBOX::menu -> generate Menu Box >site< 0.015066 - HTML::template -> template: >box_menu_bit< 0.015098 - HTML::template -> template: >box_menu_bit< 0.015110 - HTML::template -> template: >box_menu_bit< 0.015121 - HTML::template -> template: >box_menu_bit< 0.015131 - HTML::template -> template: >box_menu_bit< 0.015141 - HTML::template -> template: >box_menu_bit< 0.015150 - HTML::template -> template: >box_menu< 0.015167 - HTML::template_exists -> search: >page_box_left< == 1 0.015180 - HTML::template -> template: >page_box_left< 0.015194 - PAGE::get_boxes -> -------- call: left::menu_verein 0.015199 - CBOX::menu -> generate Menu Box >verein< 0.015207 - HTML::template -> template: >box_menu_bit< 0.015218 - HTML::template -> template: >box_menu_bit< 0.015228 - HTML::template -> template: >box_menu_bit< 0.015237 - HTML::template -> template: >box_menu_bit< 0.015247 - HTML::template -> template: >box_menu_bit< 0.015256 - HTML::template -> template: >box_menu< 0.015272 - HTML::template_exists -> search: >page_box_left< == 1 0.015284 - HTML::template -> template: >page_box_left< 0.015296 - PAGE::get_boxes -> -------- call: left::menu_event 0.015302 - CBOX::menu -> generate Menu Box >event< 0.015310 - HTML::template -> template: >box_menu_bit< 0.015320 - HTML::template -> template: >box_menu_bit< 0.015329 - HTML::template -> template: >box_menu_bit< 0.015339 - HTML::template -> template: >box_menu_bit< 0.015348 - HTML::template -> template: >box_menu_bit< 0.015357 - HTML::template -> template: >box_menu_bit< 0.015367 - HTML::template -> template: >box_menu_bit< 0.015376 - HTML::template -> template: >box_menu_bit< 0.015385 - HTML::template -> template: >box_menu_bit< 0.015395 - HTML::template -> template: >box_menu< 0.015410 - HTML::template_exists -> search: >page_box_left< == 1 0.015423 - HTML::template -> template: >page_box_left< 0.015439 - PAGE::get_boxes -> -------- call: left::menu_login 0.015445 - CBOX::menu -> generate Menu Box >login< 0.015457 - HTML::template -> template: >box_menu_bit< 0.015468 - HTML::template -> template: >box_menu_bit< 0.015477 - HTML::template -> template: >box_menu< 0.015494 - HTML::template_exists -> search: >page_box_left< == 1 0.015504 - HTML::template -> template: >page_box_left< 0.015520 - PAGE::get_boxes -> -------- side=right 0.015529 - PAGE::get_boxes -> -------- call: right::party 0.015535 - CBOX::party -> generate Box 0.015541 - EVENT::short_event -> id >17< 0.015544 - EVENT::getevent -> id >17< 0.015549 - dotDatabase::query -> SELECT events.id, active, invite, password, events.name, anzahl, preis, konto, kontocheck, UNIX_TIMESTAMP(kontocheck) AS kontocheck_unix, event_location.name AS location, event_location.zip AS plz, event_location.city AS ort, event_location.street AS strasse, event_location.countrycode, location_id, map_template, allow_signoff, voraussetzung, minalter, turnier, netzwerk, weiteres, banner, UNIX_TIMESTAMP(begin) AS begin, UNIX_TIMESTAMP(end) AS end, UNIX_TIMESTAMP(signupbegin) AS sgbegin, UNIX_TIMESTAMP(signupend) AS sgend, UNIX_TIMESTAMP(seatreservebegin) AS seatbegin, UNIX_TIMESTAMP(seatreserveend) AS seatend, seatimage, UNIX_TIMESTAMP(canceled) AS canceled, archiv_gallery, archiv_media FROM events LEFT JOIN event_location ON event_location.id=location_id WHERE events.id=17 AND active=1 0.015661 - dotCommon::classload -> require: /www/htdocs/w00f1046/includes/class.cache.php 0.015866 - CACHE::get -> cache: >event_17::stats< found 0.015906 - HTML::template -> template: >box_event< 0.015974 - HTML::template_exists -> search: >page_box_right< == 1 0.015990 - HTML::template -> template: >page_box_right< 0.016027 - PAGE::get_boxes -> -------- call: right::forum 0.016035 - CBOX::forum -> generate forum box 0.016039 - CBOX::forum_load_threads -> load data 0.016048 - CACHE::get -> cache: >forum::topthreads< found 0.016121 - CBOX::forum_threads -> list all threads in array 0.016130 - FORUM::thread_lastvisit -> threadid: array ( 0 => 2510, 1 => 2509, 2 => 2499, 3 => 2502, 4 => 2508, 5 => 2507, 6 => 2506, 7 => 1919, 8 => 2505, 9 => 2485, 10 => 2503, 11 => 2501, 12 => 2500, 13 => 2496, 14 => 2498, 15 => 2497, 16 => 2495, 17 => 2493, 18 => 2494, 19 => 2445, ) 0.016142 - admin::getInstance -> do 0.016159 - HTML::template -> template: >box_forum_bit< 0.016215 - HTML::template -> template: >box_forum_bit< 0.016241 - HTML::template -> template: >box_forum_bit< 0.016267 - HTML::template -> template: >box_forum_bit< 0.016289 - HTML::template -> template: >box_forum_bit< 0.016312 - HTML::template -> template: >box_forum_bit< 0.016325 - HTML::template -> template: >box_forum< 0.016377 - HTML::template_exists -> search: >page_box_right< == 1 0.016391 - HTML::template -> template: >page_box_right< 0.016407 - PAGE::get_boxes -> -------- call: right::vote 0.016414 - CBOX::vote -> generate Box 0.016418 - dotDatabase::query -> SELECT v_id, UNIX_TIMESTAMP(v_ende) AS v_ende FROM vote_main WHERE v_start < NOW() AND v_ende > NOW() AND v_active=1 AND v_top=1 ORDER by v_start DESC 0.016564 - HTML::template -> template: >box_vote_nocurrent< 0.016609 - HTML::template_exists -> search: >page_box_right< == 1 0.016622 - HTML::template -> template: >page_box_right< 0.016638 - PAGE::get_boxes -> -------- call: right::banner 0.016650 - CACHE::get -> cache: >sponsoren_7::cbox_lanrenav3.de_DE< found 0.016679 - HTML::template_exists -> search: >page_box_right< == 1 0.016691 - HTML::template -> template: >page_box_right< 0.016706 - PAGE::get_boxes -> -------- call: right::search 0.016712 - CBOX::template -> generate Box with >box_suchen< as template 0.016717 - HTML::template -> template: >box_suchen< 0.016761 - HTML::template_exists -> search: >page_box_right< == 1 0.016773 - HTML::template -> template: >page_box_right< 0.016816 - PAGE::render -> final 0.016834 - PAGE::renderTemplate -> page 0.016838 - PAGE::getHead -> return 0.016841 - dotSession::getInstance -> do 0.016908 - HTML::template -> template: >page< 0.017025 - PAGE::render_template -> final PHP Includes : 19 DB Queries : 22 Rendering Time : 0.017349 Includes PHP Files: - /www/htdocs/w00f1046/forum/index.php - /www/htdocs/w00f1046/global.php - /www/htdocs/w00f1046/includes/class.dotCommon.php - /www/htdocs/w00f1046/config.php - /www/htdocs/w00f1046/includes/class.dotDatabase.php - /www/htdocs/w00f1046/includes/class.page.php - /www/htdocs/w00f1046/includes/class.dotSession.php - /www/htdocs/w00f1046/includes/class.user.php - /www/htdocs/w00f1046/includes/class.styles.php - /www/htdocs/w00f1046/html/styles/lanrenav3.php - /www/htdocs/w00f1046/includes/class.admin.php - /www/htdocs/w00f1046/includes/class.prvmsg.php - /www/htdocs/w00f1046/includes/class.event.php - /www/htdocs/w00f1046/includes/class.sitzplan.php - /www/htdocs/w00f1046/html/styles/lr.inc.php - /www/htdocs/w00f1046/includes/class.forum.php - /www/htdocs/w00f1046/includes/class.html.php - /www/htdocs/w00f1046/includes/class.cbox.php - /www/htdocs/w00f1046/includes/class.cache.php

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