針對靜止圖像經(jīng)整數(shù)小波變換(integer wavelet transform)后,各子帶系數(shù)的幅值動態(tài)變化范圍小,不利 于零樹編碼(embedded zerotree wavelet coding)的缺點,采用“從 1 開始的整數(shù)平方”代替“2 的整數(shù)次冪”作為零樹 編碼的量化閾值,縮短了量化閾值間隔.通過減少重要系數(shù)在較低量化閾值中出現(xiàn)的機會,增加了編碼過程中的 零樹數(shù)量 同時通過減少參與編碼的字符數(shù)及對最高頻帶零樹不編碼,簡化了編碼過程.實驗結(jié)果表明,整數(shù)平方 量化閾值下的零樹編碼(integer square zerotree wavelet coding)解決了整數(shù)小波變換中零樹編碼的低效問題,提 高了靜止圖像的編碼效率.
標(biāo)簽： wavelet transform embedded zerotree
上傳時間： 2017-01-29
上傳用戶：as275944189
電子報軟體. 你想輕輕鬆鬆的寄送電子報 功能介紹: 1. 支援多個伺服器分散流量. (已可設(shè)定每次的最大郵件數(shù)) 2. 支援多個設(shè)定檔選擇. 3. 可直接選擇硬碟內(nèi)的 HTML, 純文字檔當(dāng)做寄信內(nèi)容. 4. 支援定時、每日、每週、每月送信. 5. 配合 ServiceAgent 可以成為NT/2000下的服務(wù). 6. 可夾帶附件檔案. 7. 在原本可直接選取電腦硬碟上的檔案(HTML)來做為HTML寄信的本文之外, 目前已能將 HTML 內(nèi)的圖檔(gif,jpg,bmp,png)的 <img> tag 和 音效檔(wav,mid,swf)的<EMBED> tag 的內(nèi)容一起勘進(jìn)郵件內(nèi)容裡. 8. 以 Command Line 執(zhí)行的方式就能啟動寄信流程. 9. 透過電子郵件信箱即可啟動自動化電子報訂閱/取消功能! 開發(fā)工具: 1. Delphi 5 2. Indy Winshoes8 (free delphi component)
上傳時間： 2014-01-05
上傳用戶：l254587896
SuperLU is a general purpose library for the direct solution of large, sparse, nonsymmetric systems of linear equations on high performance machines. The library is written in C and is callable from either C or Fortran. The library routines will perform an LU decomposition with partial pivoting and triangular system solves through forward and back substitution. The LU factorization routines can handle non-square matrices but the triangular solves are performed only for square matrices. The matrix columns may be preordered (before factorization) either through library or user supplied routines. This preordering for sparsity is completely separate from the factorization. Working precision iterative refinement subroutines are provided for improved backward stability. Routines are also provided to equilibrate the system, estimate the condition number, calculate the relative backward error, and estimate error bounds for the refined solutions.
標(biāo)簽： nonsymmetric solution SuperLU general
上傳時間： 2017-02-20
上傳用戶：lepoke
cordic methods describe essentially the same algorithm that with suitably chosen inputs can be used to calculate a whole range of scientific functions including sin, cos, tan, arctan, arcsin, arccos, sinh, cosh, tanh, arctanh, log, exp, square root and even multiply and divide. the method dates back to volder [1959], and due to its versatility and compactness, it made possible the microcoding of the hp35 pocket scientific calculator in 1972. here is some code to illustrate the techniques. ive split the methods into three parts linear, circular and hyperbolic. in the hp35 microcode these would be unified into one function (for space reasons). because the linear mode can perform multiply and divide, you only need add/subtract and shift to complete the implementation. you can select in the code whether to do the multiples and divides also by cordic means. other multiplies and divides are all powers of 2 (these dont count). to eliminate these too, would involve ieee hackery.
標(biāo)簽： essentially algorithm describe suitably
上傳時間： 2017-03-02
上傳用戶：litianchu
音樂播放器,可播放大部份與微軟Windows Media Player兼容的媒體檔案格式，當(dāng)中包括非串流處理的檔案類型(mp3,wav,mid,avi,mpg)以及串流處理的檔案類型(asf,wma,wmv) 您亦可以使用預(yù)先制作好的播放清單 (如: pls,m3u)。如果您想要利用本程序做為串流媒體服務(wù)，您可能需要準(zhǔn)備一些串流處理媒體的執(zhí)行文件 (如: asx,wax,wvx)。為你的網(wǎng)頁增加個音樂點播DJ.
標(biāo)簽： Windows Player Media 音樂播放器
上傳時間： 2013-12-10
上傳用戶：qq21508895
/*請分別定義圖形類Shape（抽象基類），繼承類矩形類Rectangle、正方形類Square、 圓形類Circle；它們具有的方法是計算周長和面積。在另一個類的main函數(shù)中分別創(chuàng)建矩形、 正方形和圓形對象，設(shè)置所需的屬性值，打印其周長和面積。*/
上傳時間： 2014-01-16
上傳用戶：lili123
分別定義圖形類Shape（抽象基類），繼承類矩形類Rectangle、正方形類Square、 圓形類Circle；并且計算周長和面積。在另一個main函數(shù)中分別創(chuàng)建矩形、 正方形和圓形對象，設(shè)置所需的屬性值，打印其周長和面積。（備注：只要把該文件解壓，把里面的東東COPY去即可使用）
上傳時間： 2017-07-25
上傳用戶：wuyuying
The radially averaged power spectrum (RAPS) is the direction-independent mean spectrum, i.e. the average of all possible directional power spectra. This function computes and plots the RAPS of an input image. The function was written to produce the RAPS for square weather radar reflectivity images so you will have to relabel the plot axes and title to suit your needs. The radially averaged power spectrum provides a convenient means to view and compare information contained in 2D spectra in 1D
標(biāo)簽： spectrum direction-independent i.e. the
上傳時間： 2013-12-17
上傳用戶：watch100
symbian s60 2rd聲音播放源碼，支持wav和mid等音頻格式
上傳時間： 2014-06-14
上傳用戶：shizhanincc
Main program running when workpiece is ready on deferent belt(deferent_ready=ture). * Call Square_Wave subroutine to generate 0.5ms square wave on P1.2 to drive * electromotor,then drive deferent belt step forward. When it steps to the measure * zone, it stops to be measured. Then call A_D subroutine to transform analog * signals to digital signals , after then call serial subroutine to transfer * digital signals to PC. Call square wave subroutine to drive deferent belt step to * original position waitting for defere ready flag to run the next circle.
標(biāo)簽： deferent_ready workpiece deferent program
上傳時間： 2017-08-31
上傳用戶：baiom
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