zhihuangenzong

说明：  读、写surfer文本的GRD格式的matlab程序，适合不需要插值的数据读写，比surfer自带的数据网格化功能处理的速度要快几十倍、甚至上百倍，可以处理大容量数据。(Reading and writing text surfer GRD format matlab program for reading and writing data without interpolation, the grid than the surfer' s own data processing capabilities several times faster, or even a hundred times, can handle large amounts of data.)

this is a code for remote sensing application

数字水印源码，基于matlab的，可实现，共同分享。(Digital watermarking source code, based on the matlab can be realized.)

轴承故障谱峭度分析，打开直接运行，包含包络谱分析(Bearing failure analysis of spectral kurtosis, open directly run, including envelope spectrum analysis)

main executing reference usage: usage_timeDifference.m Sample output: The time interval between earierTime [09-Sep-1900 09:09:18] and laterTime [31-Oct-2010 23:33:08] is 110 years, 79 days, 14 hours, 23 mins, 50.17 secs. The objective is to compute the time interval taking into account the leap days that are subsumed within the time interval. Note: The logic subsumes the time interval by yearEnd, monthEnd, dayEnd - timeEarlier (within that year) + time interval (excluding that 2 years) + timeLater - yearEnd, monthEnd, dayEnd (within that year) It differentiates the earlier time and later time, ie. timeDifference (earlierTime, laterTime) gives the same result as timeDifference (laterTime, earlierTime). leapDayHasPassed.m illustrates a possible approach to determine if a certain day of concern is already over at a given time. Caveat: does not include leap secs

MATLAB实现的小波彩色图像水印的嵌入与提取 运行需要读取原始图片和水印图片(Wavelet transform color image watermark embedding and extraction)

surf 特征提取 点特征 尺度不变性 黑森林矩阵(surf feature extraction)

MATLAB FACE DETECTION FANTASTIC

detection of english alphabet

基于matlab实现城镇迁移问题，可用于估计若干年后各城镇的人口情况。(Based matlab urban migration issues, can be used to estimated the town' s population in a few years later.)