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Rombegrg
录入程序代码,并对该实验代码进行调试,检查程序代码中的语法和语义错误。
编写函数f(x)的代码如下:
Romberg算法¨
function z=f(x)
if (x~=0)
z=sin(x)/x
else
z=1
end
备注:在实验代码中,首先输入必要的变量的值如下:
a=0
b=1
tol=1e-8
待查询检查通过,开始输入执行代码
设置格式format short g查看u的值和sin(u)的值:
(Input program code, and debugging code for the experiment to check the program code in the syntax and semantic errors. The preparation of a function f (x) of the code is as follows: Romberg algorithm ¨ function z = f (x) if (x ~ = 0) z = sin (x)/x else z = 1 end Note: In the experimental code, First, enter the necessary value of the variable is as follows: a = 0 b = 1 tol = 1e-8 pending inquiries, checking through, began to enter the implementation of the code format format short g see u, values and sin (u) values:)
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paper1
Gabor小波变换技术对医学CT图像进行纹理特征分类时,由于图像拍摄角度的变化会造成分类的误差。针对以上问题,在Gabor小波变换的基础上提出一种用于分析旋转不变医学图像的方法。该方法采用旋转规范化,即特征元素的循环移位使规范化后所有的图像都具有相同的主方向。实验结果表明,加入旋转规范化循环算子的Gabor小波变换在医学CT图像纹理特征分类时能够达到较好的精确度。(Gabor wavelet transform lacks in its ability to classify the medical CT image if it’s rotation invariant image. Aiming at the problem, an approach is presented for rotation invariant medical texture classification based on Gabor wavelet transform. Rotation normalization is achieved by circular shift of the feature elements, so that all images have the same dominant direction. Experimental result shows that Gabor wavelet transform with circular operator of rotation normalization has well precision to classify the medical CT image.)
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