提问

code problem of semivariogram
clc; close all; clear all; x=10+sqrt(50)*randn(400,1); y=2+sqrt(30)*randn(400,1); [a,b]=si...

11 years 前 | 1 个回答 | 0

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提问

i need matrix n which generated
snr=mean2(I./n)=0.5 ;where I is original image matrix and n is a noise matrix of same size of I. if i have 'I',i need matr...

11 years 前 | 1 个回答 | 0

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提问

calculate signal power of image
how to calculate signal power of image in matlab?

11 years 前 | 2 个回答 | 0

2

个回答

提问

that actual snr is
one person say me that actual snr is,,, if noiseImage=noisyImage-originalImage then actual snr=mean(originalImage./abs(n...

11 years 前 | 1 个回答 | 0

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提问

how n(20*20 matrix) can obtain
mean(s./n)=0.5 s= 1 2 3 4 5 ...20 20 19 18 17 16....1 ...

11 years 前 | 1 个回答 | 0

1

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提问

tthis right way to find
a=sqrt(0.5)*randn(400) snr=1/0.5 %0.5 is variance and signal=1 consider as normalized snrdb=10*log(snr) ...

11 years 前 | 1 个回答 | 0

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提问

if i have no information of original image
if i have no information of original image and i do not add noise manually and i have just noisy image then how can i find sign...

11 years 前 | 2 个回答 | 0

2

个回答

提问

my question is that
a=randn(400); generates 400*400 matrix in matlab, my question is that this function generates different mean and variance ma...

11 years 前 | 1 个回答 | 0

1

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提问

nugget variance from semivariogram
how to calculate nugget variance from semivariogram? http://www.mathworks.com/matlabcentral/fileexchange/20355-experimental...

11 years 前 | 0 个回答 | 0

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个回答

提问

how can create matrix(image matrix) of 3db snr(signal to noise ratio) in matlab?
how can create matrix(image matrix) of 3db snr(signal to noise ratio) in matlab?

11 years 前 | 2 个回答 | 0

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已回答
Find Min/Max Value of a Column in a Matrix
[r c] =find(Buff==min(Buff(:,3)))

11 years 前 | 0

| 已接受

提问

how could calculate semi(experimental)variogram of image?
how could calculate semi(experimental)variogram of image?

11 years 前 | 0 个回答 | 0

0

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提问

if i add matrix(same size of original image)as a noisy matrix in original image, then how could i get noise of image(original+noisy matrix)?
if i add matrix(same size of original image)as a noisy matrix in original image, then how could i get noise of image(original+n...

11 years 前 | 2 个回答 | 0

2

个回答

提问

how to create homogeneous area from image?
how to create homogeneous area from image?

11 years 前 | 1 个回答 | 0

1

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提问

fun1= normrnd(20,sqrt(0.6),[400 400]); fun1 = 20 + sqrt(0.6)*randn(400); in above function 20 is mean and 0.6 is a variance; fun1 should generate 20 mean and 0.6 variance matrix of 400*400 . but i got 20 mean and variance is 0.0018,,,so what is prob
fun1= normrnd(20,sqrt(0.6),[400 400]); fun1 = 20 + sqrt(0.6)*randn(400); in above function 20 is mean and 0.6 is a variance;...

11 years 前 | 1 个回答 | 0

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提问

v = directionalVariogram(img, xoffset, yoffset); in which version of matlab this function is suported? also in which toolbox?
v = directionalVariogram(img, xoffset, yoffset); in which version of matlab this function is suported? also in which toolbox?...

11 years 前 | 1 个回答 | 0

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提问

a=rand(400), this function generates 400*400 random matrix a,how could generate matrix a with specified mean and variance.
a=rand(400), this function generates 400*400 random matrix a,how could generate matrix a with specified mean and variance in m...

11 years 前 | 1 个回答 | 0

1

个回答

提问

how could noise OF IMAGE converted into db?
how could SNR OF IMAGE into db?

11 years 前 | 0 个回答 | 0

0

个回答

提问

how to add constant noise in image in matlab function?
how to add constant noise in image in matlab function?

11 years 前 | 2 个回答 | 0

2

个回答

提问

how could i get semivariogram of image in matlab?
how could i get semivariogram of image in matlab?

11 years 前 | 0 个回答 | 0

0

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提问

variogram of image in matlab
variogram of image in matlab

11 years 前 | 0 个回答 | 0

0

个回答

提问

how to calculate actual snr of image in matlab?
how to calculate actual snr of image in matlab?

11 years 前 | 2 个回答 | 0

2

个回答

提问

how to add constant noise in image?
how to add constant noise in image? imnoise is not function for constant noise,i adds random noise

11 years 前 | 1 个回答 | 0

1

个回答

提问

how to add noise in db in image?
how to add noise in db in image?

11 years 前 | 0 个回答 | 0

0

个回答

提问

simulation done in keil IDE is possible in matlb?
simulation done in keil IDE is possible in matlb?

11 years 前 | 0 个回答 | 0

0

个回答

提问

how to choose homogeneous blocks from image in matlab ?
how to choose homogeneous blocks from image in matlab ? i have divided image into 10*10 window. and then i took standard deviati...

11 years 前 | 0 个回答 | 0

0

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提问

i have two array x=[1 6 8 9],y=[3 6 9 14],then i plot (x,y) in matlab. i have no linear equation of x,y. i have only above array of x and y. if value of x is 4 then what is the value of y. is it possible using logic?
i have two array x=[1 6 8 9],y=[3 6 9 14],then i plot (x,y) in matlab. i have no linear equation of x,y. i have only above array...

11 years 前 | 2 个回答 | 0

2

个回答

提问

i have two array x=[1 6 8 9],y=[3 6 9 14],then i plot (x,y) in matlab. i have no linear equation of x,y. i have only above array of x and y. if value of x is 4 then what is the value of y.
i have two array x=[1 6 8 9],y=[3 6 9 14],then i plot (x,y) in matlab. i have no linear equation of x,y. i have only above a...

11 years 前 | 1 个回答 | 0

1

个回答

提问

how to implement linear eauation from points (x1,y1),(x2,y2),(x3,y3),(x4,y4) and so on in xy plane in matlab
how to implement linear eauation from points (x1,y1),(x2,y2),(x3,y3),(x4,y4) and so on in xy plane in matlab

11 years 前 | 1 个回答 | 0

1

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提问

how to add salt &pepper,gaussian noise (in 3 db)in image in matlab
how to add salt &pepper,gaussian noise (in 3 db)in image in matlab

11 years 前 | 1 个回答 | 0

1

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