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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 0.010093 - dotDatabase::select -> database: d030eee4 0.010279 - dotDatabase::query -> SELECT `code` FROM `country_ip2code` WHERE 3628718158 BETWEEN ip_from AND ip_to 0.010397 - dotSession::start -> update current session online user infos 0.010434 - dotDatabase::query -> UPDATE session SET lastactivity = 1778301350, userid = 0, site = 'https://lanrena.christoph-raible.de/forum/thread/1237/', host = '216.73.216.78', dns = '216.73.216.78', countrycode = 'US', hits = hits + 1 WHERE hash = 'c08b84f9512050dfb82e80902f2cfb8c' 0.010949 - dotSession::start -> no session found in db == insert new db sesssion 0.011006 - dotDatabase::query -> INSERT INTO `session`SET hash = 'c08b84f9512050dfb82e80902f2cfb8c', lastactivity = 1778301350, 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 = '216.73.216.78', dns = '216.73.216.78', countrycode = 'US', hits = 1 0.011508 - 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EVENT::comming_event -> return 0.015182 - dotDatabase::query -> SELECT id FROM events WHERE UNIX_TIMESTAMP(end) > 1778301350 AND active=1 ORDER by begin ASC 0.015604 - dotDatabase::query -> SELECT id FROM events WHERE UNIX_TIMESTAMP(end) < 1778301350 AND active=1 ORDER by begin DESC LIMIT 1 0.015977 - dotCommon::classload -> require: /www/htdocs/w00f1046/includes/class.sitzplan.php 0.016930 - GLOBAL::end global.php -> --------------------------------------------- 0.017190 - dotDatabase::query -> SELECT * FROM sponsoren WHERE group_id = '1' AND active = 1 ORDER BY display_order DESC 0.017398 - dotDatabase::query -> SELECT * FROM sponsoren WHERE group_id = '1' AND active = 1 ORDER BY display_order DESC 0.017626 - dotDatabase::query -> SELECT * FROM sponsoren WHERE group_id = '6' AND active = 1 ORDER BY display_order DESC 0.017931 - dotDatabase::query -> SELECT * FROM sponsoren WHERE group_id = '6' AND active = 1 ORDER BY display_order DESC 0.018193 - dotCommon::classload -> require: /www/htdocs/w00f1046/includes/class.forum.php 0.020928 - 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admin::getInstance -> do 0.024203 - admin::hasRight -> check for adminright: >0:0 & 32< FALSE 0.024214 - admin::getInstance -> do 0.024231 - admin::hasRight -> check for adminright: >0:0 & 16777216< FALSE 0.024241 - admin::getInstance -> do 0.024257 - admin::hasRight -> check for adminright: >0:0 & 64< FALSE 0.024266 - admin::getInstance -> do 0.024282 - admin::hasRight -> check for adminright: >0:0 & 32< FALSE 0.024293 - admin::getInstance -> do 0.024309 - admin::hasRight -> check for adminright: >0:0 & 16777216< FALSE 0.024318 - admin::getInstance -> do 0.024342 - admin::hasRight -> check for adminright: >0:0 & 64< FALSE 0.024370 - dotCommon::classload -> require: /www/htdocs/w00f1046/includes/class.html.php 0.025870 - dotDatabase::query -> SELECT title FROM forum_cat WHERE catid=3 0.026072 - dotDatabase::query -> UPDATE forum_thread SET hits=hits+1 WHERE threadid='1237' 0.026310 - dotDatabase::query -> SELECT user_id FROM user_orga WHERE display_team=1 0.026581 - FORUM::showthread -> query all postings 0.026611 - dotDatabase::query -> SELECT postid, threadid, userid, pagetext, htmltext, locked, invisible, remoteip, locked, forum_post.dateline, UNIX_TIMESTAMP(forum_post.dateline) AS stamp, user.id AS user_id, user.nick AS user_nick, user.clan AS user_clan, user.clantag, user.stats_postings AS user_postings, user.motto AS user_motto, user.female, user.countrycode, user.avatar,user.avatar_name, edit_user_id, UNIX_TIMESTAMP(edited) AS edit_unixtime, edit.nick AS edit_nick, IF(edit_user_id > 0,0,1) AS history, attachment_id, filename, filesize FROM forum_post LEFT JOIN user ON user.id = forum_post.userid LEFT JOIN user AS edit ON edit.id = forum_post.edit_user_id LEFT JOIN forum_files ON forum_post.attachment_id = forum_files.id WHERE threadid = 1237 AND forum_post.invisible=0 ORDER by postid ASC LIMIT 0,30 0.027497 - HTML::encode -> __________________[color=#0040FF]#LANrena Neustetten e.V.[/c... 0.027570 - dotDatabase::query -> SELECT `code`, `smily` FROM html_smilies ORDER by LENGTH(code) DESC 0.029179 - dotDatabase::query -> SELECT codetag, codereplacement, twoparams FROM html_code 0.029348 - HTML::encode -> replace run 1 0.029599 - HTML::encode -> replace run 2 0.029733 - HTML::template -> template: >forum_postingpart< 0.029919 - HTML::template -> template: >forum_postingindex< 0.030037 - FORUM::showthread -> check for moderator utils 0.030056 - FORUM::update_visit -> forumid: 6 threadid: 1237 posttime: 2011-11-19 20:53:42 0.030102 - GLOBAL::end userspace -> --------------------------------------------- 0.030111 - PAGE::render -> start rendering page layout 0.030121 - USER::check_for_new_messages -> return 0.030136 - dotSession::getInstance -> do 0.030180 - PAGE::get_boxes -> -------- side=left 0.030208 - dotCommon::classload -> require: /www/htdocs/w00f1046/includes/class.cbox.php 0.032011 - PAGE::get_boxes -> -------- call: left::menu_main 0.032038 - CBOX::menu -> generate Menu Box >news< 0.032068 - HTML::template -> template: >box_menu< 0.032198 - HTML::template_exists -> search: >page_box_left< == 1 0.032238 - HTML::template -> template: >page_box_left< 0.032337 - PAGE::get_boxes -> -------- call: left::menu_site 0.032356 - CBOX::menu -> generate Menu Box >site< 0.032378 - HTML::template -> template: >box_menu_bit< 0.032458 - HTML::template -> template: >box_menu_bit< 0.032488 - HTML::template -> template: >box_menu_bit< 0.032512 - HTML::template -> template: >box_menu_bit< 0.032535 - HTML::template -> template: >box_menu_bit< 0.032558 - HTML::template -> template: >box_menu_bit< 0.032588 - HTML::template -> template: >box_menu< 0.032630 - HTML::template_exists -> search: >page_box_left< == 1 0.032661 - HTML::template -> template: >page_box_left< 0.032694 - PAGE::get_boxes -> -------- call: left::menu_verein 0.032708 - CBOX::menu -> generate Menu Box >verein< 0.032727 - HTML::template -> template: >box_menu_bit< 0.032751 - HTML::template -> template: >box_menu_bit< 0.032775 - HTML::template -> template: >box_menu_bit< 0.032797 - HTML::template -> template: >box_menu_bit< 0.032819 - HTML::template -> template: >box_menu_bit< 0.032842 - HTML::template -> template: >box_menu< 0.032880 - HTML::template_exists -> search: >page_box_left< == 1 0.032907 - HTML::template -> template: >page_box_left< 0.032938 - PAGE::get_boxes -> -------- call: left::menu_event 0.032951 - CBOX::menu -> generate Menu Box >event< 0.032970 - HTML::template -> template: >box_menu_bit< 0.032995 - HTML::template -> template: >box_menu_bit< 0.033017 - HTML::template -> template: >box_menu_bit< 0.033040 - HTML::template -> template: >box_menu_bit< 0.033061 - HTML::template -> template: >box_menu_bit< 0.033083 - HTML::template -> template: >box_menu_bit< 0.033106 - HTML::template -> template: >box_menu_bit< 0.033128 - HTML::template -> template: >box_menu_bit< 0.033150 - HTML::template -> template: >box_menu_bit< 0.033173 - HTML::template -> template: >box_menu< 0.033211 - HTML::template_exists -> search: >page_box_left< == 1 0.033243 - HTML::template -> template: >page_box_left< 0.033279 - PAGE::get_boxes -> -------- call: left::menu_login 0.033293 - CBOX::menu -> generate Menu Box >login< 0.033321 - HTML::template -> template: >box_menu_bit< 0.033356 - HTML::template -> template: >box_menu_bit< 0.033380 - HTML::template -> template: >box_menu< 0.033420 - HTML::template_exists -> search: >page_box_left< == 1 0.033446 - HTML::template -> template: >page_box_left< 0.033488 - PAGE::get_boxes -> -------- side=right 0.033511 - PAGE::get_boxes -> -------- call: right::party 0.033525 - CBOX::party -> generate Box 0.033539 - EVENT::short_event -> id >17< 0.033547 - EVENT::getevent -> id >17< 0.033558 - 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 0.033805 - dotCommon::classload -> require: /www/htdocs/w00f1046/includes/class.cache.php 0.034227 - CACHE::get -> cache: >event_17::stats< found 0.034340 - HTML::template -> template: >box_event< 0.034509 - HTML::template_exists -> search: >page_box_right< == 1 0.034540 - HTML::template -> template: >page_box_right< 0.034618 - PAGE::get_boxes -> -------- call: right::forum 0.034635 - CBOX::forum -> generate forum box 0.034642 - CBOX::forum_load_threads -> load data 0.034661 - CACHE::get -> cache: >forum::topthreads< found 0.034810 - CBOX::forum_threads -> list all threads in array 0.034828 - 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, ) 0.034852 - admin::getInstance -> do 0.034886 - HTML::template -> template: >box_forum_bit< 0.034999 - HTML::template -> template: >box_forum_bit< 0.035052 - HTML::template -> template: >box_forum_bit< 0.035102 - HTML::template -> template: >box_forum_bit< 0.035144 - HTML::template -> template: >box_forum_bit< 0.035190 - HTML::template -> template: >box_forum_bit< 0.035218 - HTML::template -> template: >box_forum< 0.035318 - HTML::template_exists -> search: >page_box_right< == 1 0.035353 - HTML::template -> template: >page_box_right< 0.035390 - PAGE::get_boxes -> -------- call: right::vote 0.035404 - CBOX::vote -> generate Box 0.035412 - 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 0.035664 - HTML::template -> template: >box_vote_nocurrent< 0.035762 - HTML::template_exists -> search: >page_box_right< == 1 0.035789 - HTML::template -> template: >page_box_right< 0.035819 - PAGE::get_boxes -> -------- call: right::banner 0.035844 - CACHE::get -> cache: >sponsoren_7::cbox_lanrenav3.de_DE< found 0.035897 - HTML::template_exists -> search: >page_box_right< == 1 0.035921 - HTML::template -> template: >page_box_right< 0.035950 - PAGE::get_boxes -> -------- call: right::search 0.035963 - CBOX::template -> generate Box with >box_suchen< as template 0.035971 - HTML::template -> template: >box_suchen< 0.036044 - HTML::template_exists -> search: >page_box_right< == 1 0.036066 - HTML::template -> template: >page_box_right< 0.036100 - PAGE::render -> final 0.036109 - PAGE::renderTemplate -> page 0.036118 - PAGE::getHead -> return 0.036123 - dotSession::getInstance -> do 0.036251 - HTML::template -> template: >page< 0.036494 - PAGE::render_template -> final PHP Includes : 19 DB Queries : 22 Rendering Time : 0.037107 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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