ARM指令最佳化-Coding for NEON – Part 4: Shifting Left and Right

This article introduces the shifting operations provided by NEON, and shows how they can be used to convert image data between commonly used color depths. Previous articles in this series: Part 1: Loads and Stores, Part 2: Dealing with Leftovers and 

引入 JPEGCodec;JPEGImageEncoder; 圖片處理

在Eclipse中處理圖片,需要引入兩個包:import com.sun.image.codec.jpeg.JPEGCodec;import com.sun.image.codec.jpeg.JPEGImageEncoder;報錯:Access restriction: The type JPEGImageEncoder is not accessible due to restriction on required library

少兒英語視頻收藏

巧虎英語:my body: http://www.56.com/w56/play_album-aid-9850743_vid-NTcwOTQzNTQ.html2007.03: http://www.56.com/w56/play_album-aid-9850743_vid-NjYxOTk0NzI.html2007.04: http://www.56.com/w56/play_album-aid-9850743_vid-NjYxOTk1MTA.html2007.05: http://www.56.

IELTS vacabulary – F

fabricfabulousfacilitatefacilityfactorfactualfacultyfadefaintfaithfakefamefamiliarfancyfantasyfarefascinatefashionfastenfatalfatiguefaultfavourablefavouritefeasiblefeastfeatfeaturefederationfeefeedbackfertilefertilisefestivalfetchfibrefictionfiercefi

IELTS vacabulary – B

babyishbachelorbackbonebackgroundbacklashback-upbacterialbadgebadmintonbalancebalkballotbanbanalbankruptbannerbanquetbarbarbecuebarebargainbargebarragebarrelbarrenbarrierbasebatchbatterybeachbeambeetlebeforehandbehalfbehavebelievebendbeneathbenefitbe

Converting Between YUV and RGB

It is frequently necessary to convert between YUV pixel formats (used by the JPEG and MPEG compression methods) and RGB format (used by many hardware manufacturers.) The following formulas show how to compute a pixel's value in one format from the

.ko編寫模板

mymodule.c#include <linux/init.h>#include <linux/module.h>static int __init hello_init(void){ printk(KERN_ALERT "Hello!\n"); return 0;} static void __exit hello_exit(void){ printk(KERN_ALERT

標準USB/Mini-USB介面,及OTG

http://blog.csdn.net/zhandoushi1982/archive/2010/08/16/5814741.aspx(1)USB(2)Mini

IELTS vacabulary – I

icebergidealidenticalidentifyidentityidiomidiosyncraticidleigniteignoreillegalilluminateillusionillustrateimagineimitateimmediateimmenseimmigrateimminentimmuneimpactimpairimpartialimpatientimpedeimpetusimplementimplicateimplyimportimportantimposeimpo

IELTS vacabulary – D

dairydamdamagedampdangerdashdatadawndazzlingdeadlinedealdebatedebtdecadedecaydeceivedecentdecidedeclaredeclinedecodedecomposedecoratedecreasededicatedeemdefeatdefectdefenddeferdeficiencydeficitdefinedeforestationdegeneratedegradedegreedelaydelegatede

IELTS vacabulary – A

abandonabateabbreviationabideabnormalaboardaboriginalabroadabruptabsenteeismabsoluteabsorbabstractionabundantabuseacademicaccelerateacceptaccessaccidentacclaimaccommodationaccompanyaccomplishaccountaccreditaccrueaccumulateaccurateaccuseachieveacidack

IELTS vacabulary – J, K, L

jamjarjealousjerkjewelleryjigsawjoinjointjournaljourneyjudgejuicejunglejuniorjuryjusticejustifyjuvenilekeenkidnapkidneykilogrammekilometerkingdomkitkitchenkneelknowledgelabellaboratorylabourlackladenlaglandfilllandlordlandmarklandscapelanguagelaughla

ARM指令最佳化-Coding for NEON – Part 5: Rearranging Vectors

IntroductionWhen writing code for NEON, you may find that sometimes, the data in your registers are not quite in the correct format for your algorithm. You may need to rearrange the elements in your vectors so that subsequent arithmetic can add the

ARM指令最佳化-Coding for NEON – Part 2: Dealing With Leftovers

In the first post on NEON about loads and stores we looked at transferring data between the NEON processing unit and memory. In this post, we deal with an often encountered problem: input data that is not a multiple of the length of the vectors you

三角函數公式表

同角三角函數的基本關係式倒數關係:商的關係:平方關係:tanα ·cotα=1sinα ·cscα=1cosα

IELTS vacabulary – E

earnearnestearthquakeeaseeccentricecholocationeclipseecologyeconomyecosystemedgeedibleediteducationeffectefficienteffortelaborateelapseelasticelbowelectricityelectronicelegantelementelevateeliciteligibleeliminateeliteeloquentelucidateelusiveembarkemb

ARM指令最佳化-Coding for NEON – Part 3: Matrix Multiplication

We have seen how to load and store data with NEON, and how to handle the leftovers resulting from vector processing. Let us move on to doing some useful data processing – multiplying matrices.MatricesIn this post, we will look at how to efficiently

公開課資源整理

1.  MIT 演算法導論     1) http://v.163.com/special/opencourse/algorithms.html     2012-07-06: 1-30:00;     2012-07-07: 1, permutation;  bogus;   asymptomatic; asymptotically; recursive;  key subroutine; merge sort2.  拉籌伯大學:新聞人的網路編輯和發布       1)http://v.163

epub電子書格式轉換(E-book Conversion翻譯) — calibre

原文地址:http://calibre-ebook.com/user_manual/conversion.html#convert-microsoft-word-documents      calibre轉換系統的設計非常容易使用。通常情況下,你只需要添加一本書到calibre,單擊轉換,

Tslib-1.0移植

 1. 編譯:$export CC=/work/ebook/arm-linux-4.1.1/bin/arm-linux-gcc      //toolchain路徑$./autogen.sh   //產生config檔案$export PATH=$PATH:/work/ebook/arm-linux-4.1.1/bin/$echo "ac_cv_func_malloc_0_nonnull=yes" >arm-linux.cache $./configure 

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