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第四次作业
说明: 1.使用medfilt2函数对‘lena.bmp’进行不同模板大小的中值滤波,并观察效果
2.使用fspecial函数构造‘gaussian’, ‘sobel’, ‘prewitt’, ‘laplacian’, ‘average’等不同滤波算子,使用filter2函数对‘cameraman.tif ’进行滤波,观察不同滤波器的效果
3.设计频域理想低通和理想高通滤波器,对‘phantom.bmp’图像进行频域滤波,显示滤波结果。然后改变截止频率,观察对结果的影响。
4.对‘homo.bmp’进行同态滤波,其中频域同态滤波器自行设计。要求在程序注释中说明你设计该滤波器的思想。(1' lena.bmp 'The median filtering with different template sizes was carried out and the effect was observed2. Fsspecial function is used to construct different filter operators such as' Gaussian ',' Sobel ',' Prewitt ',' Laplacian ',' average ', etc' cameraman.tif 'Filter and observe the effect of different filters3. Design ideal low pass and ideal high pass filters in frequency domain' phantom.bmp 'The image is filtered in frequency domain and the filtering result is displayed. Then change the cut-off frequency and observe the effect on the results.4. Yes' homo.bmp 'The homomorphic filter is designed by ourselves. The idea of designing the filter should be explained in the program notes.)
- 2020-12-11 21:53:25下载
- 积分:1
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MPPT
MPPT algorithm INC method
- 2021-03-13 14:59:24下载
- 积分:1
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jpeg_quality_score
基于JPEG压缩的无参考图像质量评价算法,输入一幅图像,输出图像的评价值,值在0-100之间,越接近0图像的质量越好(JPEG-based compression algorithm for no-reference image quality assessment, an input image, the output image uation value, a value between 0-100, closer to 0 the better the image quality)
- 2014-11-27 14:12:41下载
- 积分:1
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Image-Segmentation-Method
本文主要研究基于水平集方法的活动轮廓模型图像分割,在回顾活动轮廓模
型发展的基础上,介绍了曲线演化理论及其水平集方法,证明了水平集方法可以
有稳定的数值实现方式且其处理拓扑变化的自然性,进一步引出了变分水平集方
法。
本文介绍了两种不同的几何活动轮廓模型:基于梯度信息的李纯明模型以及
基于区域信息的 Chan-Vese 模型(C-V 模型)。在分析上述两模型的优缺点上,提
出了一种改进的 C-V 模型,改进模型引入了距离约束项,同时对基于区域的外部
能量项进行了改进,使得水平集函数重新初始化寓于模型的演化之中,分割结果
对参数的依赖性减小。
(This paper mainly study image segmentation of active contour model based on
level set. After reviewing the development of the active contour model, curve evolution
and level set method are presented, then we proved that the level set method has a stable
numerical realization and can describe the topology change of the contour naturally, in
addition we introduce level set of variational method.
We introduce two different GAC models in this paper: Li Chunming model which
is based on gradient information and Chan-Vese model (C-V model) which is based
on region information. Based on the drawbacks and advantages of these two models, we
improve the C-V model by adding penalizing energy term of signed distance function,
at the same time, mending the external energy term which based on region information,
then the re-initialization of the level set can accomplish in the model evolution, and the
degree of the segmentation result depend on the parameters decline.
)
- 2011-12-20 20:27:30下载
- 积分:1
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hist
设计一个程序,对一幅灰度图像现直方图均衡化处理。画出均衡化前后的图像及其直方图
(histogram equalization )
- 2009-05-02 12:27:54下载
- 积分:1
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time_varied_stiffness
一个齿轮时变啮合刚度求解的仿真程序,在刚度求解过程中,考虑了时变啮合刚度(Time-varying gear mesh stiffness of a simulation program to solve)
- 2020-07-03 12:00:02下载
- 积分:1
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linear
- 1、限幅滤波法(又称程序判断滤波法) 2、中位值滤波法 3、算术平均滤波法 4、递推平均滤波法(又称滑动平均滤波法) 5、中位值平均滤波法(又称防脉冲干扰平均滤波法) 6、限幅平均滤波法 7、一阶滞后滤波法 8、加权递推平均滤波法 9、消抖滤波法 10、限幅消抖滤波法 (- 1, limiting filtering method (also known as filtering method to determine the procedure) 2, the median filtering method 3, the arithmetic average filtering method 4, the average recursive filtering method (also known as the moving average filtering method) 5, with a median value of the average filter Act (also known as anti-pulse interference average filtering method) 6, limiting the average filtering method 7, the first order lag filtering method 8, the weighted average recursive filtering method 9, extinction Buffeting filtering method 10, limiting consumer Buffeting filtering method)
- 2021-01-18 17:18:42下载
- 积分:1
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C# 水平交错效果显示图像 实例
C# 水平交错效果显示图像 实例
- 2013-05-31下载
- 积分:1
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US Test
说明: 本代码可以载入超声图像,然后通过标注连通区域,自动截取最大连通区域对应的图像部分,达到去除四周标注的目的(After loading the ultrasonic image, the image part can be automatically cut off to remove the surrounding annotation)
- 2020-04-16 23:20:12下载
- 积分:1
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ssim_index
基于matlab的SSIM图像相似度评价算法实现(Matlab based on the the SSIM image similarity evaluation algorithm implementation)
- 2021-03-10 14:19:26下载
- 积分:1