OTSU Gray-level image segmentation using Otsu s method. Iseg = OTSU(I,n) computes a segmented image (Iseg) containing n classes by means of Otsu s n-thresholding method (Otsu N, A Threshold Selection Method from Gray-Level Histograms, IEEE Trans. Syst. Man Cybern. 9:62-66 1979). Thresholds are computed to maximize a separability criterion of the resultant classes in gray levels. OTSU(I) is equivalent to OTSU(I,2). By default, n=2 and the corresponding Iseg is therefore a binary image. The pixel values for Iseg are [0 1] if n=2, [0 0.5 1] if n=3, [0 0.333 0.666 1] if n=4, ... [Iseg,sep] = OTSU(I,n) returns the value (sep) of the separability criterion within the range [0 1]. Zero is obtained only with images having less than n gray level, whereas one (optimal value) is obtained only with n-valued images.
标签： OTSU segmentation Gray-level segmented
上传时间： 2017-04-24
上传用户：yuzsu
Basic function to locate and measure the positive peaks in a noisy data sets. Detects peaks by looking for downward zero-crossings in the smoothed third derivative that exceed SlopeThreshold and peak amplitudes that exceed AmpThreshold. Determines, position, height, and approximate width of each peak by least-squares curve-fitting the log of top part of the peak with a parabola.
标签： peaks function positive Detects
上传时间： 2017-04-26
上传用户：彭玖华
This thesis is devoted to several efficient VLSI architecture design issues in errorcorrecting coding, including finite field arithmetic, (Generalized) Low-Density Parity- Check (LDPC) codes, and Reed-Solomon codes.
标签： errorcorrecting architecture efficient devoted
上传时间： 2017-05-08
上传用户：康郎
Uses the level set method with reinitialization to compute the movement of fronts under a given velocity field.
标签： reinitialization the movement compute
上传时间： 2017-05-14
上传用户：hphh
oracle中常用函数说明. SQL中的单记录函数 1.ASCII 返回与指定的字符对应的十进制数 SQL> select ascii( A ) A,ascii( a ) a,ascii( 0 ) zero,ascii( ) space from dual A A ZERO SPACE --------- --------- --------- --------- 65 97 48 32 2.CHR 给出整数,返回对应的字符 SQL> select chr(54740) zhao,chr(65) chr65 from dual ZH C -- - 赵 A 3.CONCAT 连接两个字符串 SQL> select concat( 010- , 88888888 )|| 转23 高乾竞电话 from dual 高乾竞电话 ---------------- 010-88888888转23
上传时间： 2014-11-23
上传用户：zhangyigenius
The aip file contains few Matlab routines for 1D line scan analysis, 1D scaling, 2D scaling, image brightness or contrast variation routine and rouitne for finding area between zero cossings of 1D times series.
标签： scaling contains analysis routines
上传时间： 2014-01-19
上传用户：xmsmh
This program take a two sequences with differents lengths and transform in two sequences with same length with use zero padding method.
标签： sequences with differents two
上传时间： 2017-05-27
上传用户：kikye
4 16 64 QAM plots for simulated and theoretical results for OFDM system with addition of Cyclic prefix and a zero-Forcing equalizer.
标签： theoretical for simulated addition
上传时间： 2017-06-02
上传用户：hgy9473
This book was intended specifically for people who know how to program already but have taken only rudimentary stabs at graphics/game programming or never taken any stab at all, such as programmers in another field or college students looking to embark on some side projects.
标签： specifically intended already program
上传时间： 2017-06-07
上传用户：小码农lz
A Celsius-Fahrenheit-Kelvin -converter using NetBeans IDE.An application that converts between Celsius, Fahrenheit, and Kelvin degrees. For each unit, there is a text field showing the temperature, and a button that activates the conversion from that unit to the other units. Show 2 decimal places.
标签： Celsius-Fahrenheit-Kelvin application converter NetBeans
上传时间： 2017-06-07
上传用户：三人用菜
