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JSteg
JSteg隐写技术matlab实现代码--基本思想:用秘密信息比特直接替换JPEG图像中量化后DCT系数的最低比特位,但若量化后DCT系数为0或者1,则不进行处理。(DCT系数的LSB嵌入)
(JSteg steganography matlab code- the basic idea: direct replacement with the secret information bits JPEG image quantized DCT coefficients in the least significant bit, but if the quantized DCT coefficient is 0 or 1, no processing. (DCT coefficients LSB embedding))
- 2020-12-21 15:59:09下载
- 积分:1
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resample
用matlab 实现图像的采样,可实现128 ,64,32点采样(Using matlab to achieve the image sampling, can be realized 128, 64,32-point sampling)
- 2009-09-14 21:44:11下载
- 积分:1
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Lawstextureenergymeasure
Laws纹理策度是用来进行纹理分割的程序,这种方法很有用.(Laws degree texture strategy are used for texture segmentation procedure, this method useful.)
- 2009-03-08 03:10:43下载
- 积分:1
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testcanny
Canny算子的分步骤实现,基于C语言,一共6部分,学习图像处理参考(Canny operator steps to achieve, based on the C language, a total of 6 parts, the study of image processing reference)
- 2021-04-21 14:08:49下载
- 积分:1
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Locating-Voltage-Sags
电压跌落是最严重的动态电能质量问题之一,
精确定位电压跌落起止时间是应对电压跌落问题的
重要前提和基础。由于电压采样信号往往有噪声分
量,现有的方法在定位电压跌落的起止时间时存在
局限性。本文提出利用多小波变换及相邻系数去噪
的电压跌落定位方法。多小波兼有对称性、正交性、
有限支撑性和二阶消失矩等优异的信号处理性能,
利用GHM多小波可以准确定位电压跌落起止时间。
多小波变换系数在每层之间具有对应关系,多小波
相邻系数将紧相邻的若干个系数作为一个整体来确
定阈值,考虑了系数之间的相关性,能获得更好的
去噪效果。通过 Matlab 进行仿真验证,仿真结果表
明,所提出的方法的正确性。
(Voltage sag is one of the most serious
dynamic power quality problems. Critical start-time
and end-time are important indices for voltage sags.
But the sampling signals often have noisy component,
the locations of start-time and end-time are hard to get.
Wavelet is an effective tool for those non-stationary
signal processing and has been used in this field. Local
feature in the signal can be enlarged after the
transformation using the scalar wavelet. But scalar
wavelets cannot contain orthogonality, symmetry,
compact support and higher order of vanishing
moments simultaneously. In this thesis, multi-wavelets
GHM is used to detect and locate power quality
disturbances. Multi-wavelets offer many excellent
properties such as the same approximation order but
more compact support. The dependence of the
multi-wavelets coefficients varies with the level, so
neighboring coefficien)
- 2014-03-25 17:08:50下载
- 积分:1
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cs,rd,rma
用于雷达成像的三种不同算法,分别为CS算法、RD算法、RMA算法(cs ,rd ,rma algorithm)
- 2021-04-27 20:38:44下载
- 积分:1
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image-processing
冈萨雷斯数字图像处理MATLAB版,是我们学习图像处理必备的书籍(Gonzales digital image processing MATLAB version, we study the image processing necessary books)
- 2016-05-04 11:45:37下载
- 积分:1
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OV7670_VGA_OK
说明: 基于ESS303开发板的OV7670_VGA拍照功能实现(Implementation of OV7670_VGA camera function based on ESS303 development board)
- 2020-06-25 09:00:01下载
- 积分:1
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数字图像程序汇总
一系列处理图片算法,简单的图片放大,打开时请打开project902.dsw,直接编译请重新下载(A series of image processing algorithms, simple image enlargement)
- 2020-06-19 13:00:02下载
- 积分:1
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pcnn otsu
Pcnn与otsu结合,自适应找出Pcnn点火次数!(It is pcnn base on OTSU,can stop the program adaptive.)
- 2015-09-19 10:21:53下载
- 积分:1