This program compress and recostruct using wavelets. We can select level of decomposition(here maximum 4 levels are given) of images using selected wavelet. For eg:-wavelets can be haar, db1, db2,dmey............... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score. Then reconstruction can be performed. Each decompsition we can choose different threshold values. For each threshold value we can calculate mse,psnr,pq(picture quality), bit ratio etc. To get pq install pqs function .
標簽: decomposition recostruct compress wavelets
上傳時間: 2016-01-22
上傳用戶:liuchee
Returns weighted percentiles of a sample given the weight vector w % The idea is to give more emphasis in some examples of data as compared to % others by giving more weight. For example, we could give lower weights to % the outliers. % The motivation to write this function is to compute percentiles for Monte % Carlos simulations where some simulations are very bad (in terms of goodness % of fit between simulated and actual value) than the others and to give % the lower weights based on some goodness of fit criteria.
標簽: percentiles weighted Returns sample
上傳時間: 2016-01-28
上傳用戶:小儒尼尼奧
用分支限界法求解背包問題(0/1背包) 1.問題描述:已知有N個物品和一個可以容納TOT重量的背包,每種物品I的重量為Weight,價值為value。一個只能全放入或者不放入,求解如何放入物品,可以使背包里的物品的總價值最大。 2.設計思想與分析:對物品的選取與否構成一棵解樹,左子樹表示裝入,右表示不裝入,通過檢索問題的解樹得出最優解,并用結點上界殺死不符合要求的結點。
上傳時間: 2016-02-09
上傳用戶:我們的船長
Synthesizable FIFO Model This example describes a synthesizable implementation of a FIFO. The FIFO depth and FIFO width in bits can be modified by simply changing the value of two parameters, `FWIDTH and `FDEPTH. For this example, the FIFO depth is 4 and the FIFO width is 32 bits.
標簽: FIFO implementation Synthesizable synthesizable
上傳時間: 2016-02-12
上傳用戶:源弋弋
map identification laquo yuan Problem description : the digital image processing of an image often expressed as a macute M pixel matrix. Each pixel value is 0 or 1. The value of 0 pixel image, said background, and the value of a pixel image, said a map of a million, usually called map million pixels. When a pixel in another pixels above, below, left or right, said that two adjacent pixels of the pixel. An image of the pixels belonging to the same map yuan, instead of adjacent pixels belonging to different map yuan. Figure yuan identification of problems is right for the given image pixel map marking yuan, making the same map billion yuan pixel map of the same markings and different map billion yuan pixel map of their marks are different. Trial queue abstract data type design solut
標簽: image identification description processing
上傳時間: 2013-12-15
上傳用戶:15736969615
This title demonstrates how to develop computer programmes which solve specific engineering problems using the finite element method. It enables students, scientists and engineers to assemble their own computer programmes to produce numerical results to solve these problems. The first three editions of Programming the Finite Element Method established themselves as an authority in this area. This fully revised 4th edition includes completely rewritten programmes with a unique description and list of parallel versions of programmes in Fortran 90. The Fortran programmes and subroutines described in the text will be made available on the Internet via anonymous ftp, further adding to the value of this title.
標簽: demonstrates engineering programmes computer
上傳時間: 2014-01-13
上傳用戶:youke111
This document represents the first stage in a process of taking the National Strategy for Police Information Systems (NSPIS) forward. It defines the mechanisms to ensure that we (and our partners) have access to the right information, in the right form, in the right time at an appropriate cost. The Strategy will ensure the Police Service has a collective understanding of the value of information and that we are able to exploit National Information Assets in support of local policing.
標簽: represents the National Strategy
上傳時間: 2016-03-08
上傳用戶:wangdean1101
PNG開放源接口 The interface has been designed to be as simple and intuitive as possible. It supports plotting and reading in the RGB (red, green, blue), HSV (hue, saturation, value/brightness) and CMYK (cyan, magenta, yellow, black) colour spaces, basic shapes, scaling, bilinear interpolation, full TrueType antialiased and rotated text support, bezier curves, opening existing PNG images and more.
標簽: interface intuitive designed possible
上傳時間: 2013-12-23
上傳用戶:qilin
Data mining (DM) is the extraction of hidden predictive information from large databases (DBs). With the automatic discovery of knowledge implicit within DBs, DM uses sophisticated statistical analysis and modeling techniques to uncover patterns and relationships hidden in organizational DBs. Over the last 40 years, the tools and techniques to process structured information have continued to evolve from DBs to data warehousing (DW) to DM. DW applications have become business-critical. DM can extract even more value out of these huge repositories of information.
標簽: information extraction predictive databases
上傳時間: 2016-03-19
上傳用戶:啊颯颯大師的
Simple VaR Calculator provides: - Evaluation of return distribution of single asset or portfolio of assets - Volatility forecasts using moving average and exponential algorithm - value at Risk of single asset or portfolio measurement using parametric and historical simulation. - Historical data can be obtained from simple text file or MS Excel using Matlab Excel Links.
標簽: distribution Calculator Evaluation portfolio
上傳時間: 2013-12-21
上傳用戶:hasan2015