1 186 total contributions since 2017

#Image Processing

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#Alma-mater Tezpur University India

Answered

need suggestions on noise removal from scanned handwritten note

Dear Steve, Just for normal filtering, you can try in a different way, as the exact algorithm will be based on resultant enhan...

need suggestions on noise removal from scanned handwritten note

Dear Steve, Just for normal filtering, you can try in a different way, as the exact algorithm will be based on resultant enhan...

ungefär 6 timmar ago | 0

Answered

comparing 3x3 block with center pixel

Self Declaration: Odd Way but simpler for i=2:Row-1 for j=2:Col-1 if (mat(i,j)<mat(i-1,j-1)+mat(i,j)<mat(i,j-1)+m...

comparing 3x3 block with center pixel

Self Declaration: Odd Way but simpler for i=2:Row-1 for j=2:Col-1 if (mat(i,j)<mat(i-1,j-1)+mat(i,j)<mat(i,j-1)+m...

ungefär 7 timmar ago | 0

Answered

Average of Wave from 10 waves in single graph

Lets say wave are y1,y2,y3.....up to y10..assuming all are having in same x scale aveg_data=(y1+y2+y3...+y10)/10; plot(x,aveg...

Average of Wave from 10 waves in single graph

Lets say wave are y1,y2,y3.....up to y10..assuming all are having in same x scale aveg_data=(y1+y2+y3...+y10)/10; plot(x,aveg...

ungefär 8 timmar ago | 1

Answered

concatenate column values in a vector

Simpler way: v=[1,0,1,0]; result=str2num(sprintf('%1d',v)) here the same question Credit: @per isakson Result: result = ...

concatenate column values in a vector

Simpler way: v=[1,0,1,0]; result=str2num(sprintf('%1d',v)) here the same question Credit: @per isakson Result: result = ...

ungefär 8 timmar ago | 1

| accepted

Answered

Plotting Time Sequence in MATLAB

Is this way? x=1:16; y=linspace(0,1,16); plot(x,y,'Db','linewidth',5); hold on; plot(x(1:5)+10,y(1:5),'Db','linewidth',5); ...

Plotting Time Sequence in MATLAB

Is this way? x=1:16; y=linspace(0,1,16); plot(x,y,'Db','linewidth',5); hold on; plot(x(1:5)+10,y(1:5),'Db','linewidth',5); ...

ungefär 16 timmar ago | 0

Answered

code error for Two Point Boundary Value Problem

I did not find any coding error in your code, just save the task14 function file in the same directory. You can call the saved t...

code error for Two Point Boundary Value Problem

I did not find any coding error in your code, just save the task14 function file in the same directory. You can call the saved t...

ungefär 19 timmar ago | 0

Answered

normalize values from svd matrix

Want to normalize only the first three values of my matrix x=norm(1:3)

normalize values from svd matrix

Want to normalize only the first three values of my matrix x=norm(1:3)

ungefär 20 timmar ago | 0

| accepted

Answered

Calculate derivative using central differencing

Is this? dx=0.01; x=0:dx:2*pi; signal=sin(x).*cos(10*x); diff_cen=(sin(x+dx).*cos(10*(x+dx))-sin(x).*cos(10*x))/(2*dx); d...

Calculate derivative using central differencing

Is this? dx=0.01; x=0:dx:2*pi; signal=sin(x).*cos(10*x); diff_cen=(sin(x+dx).*cos(10*(x+dx))-sin(x).*cos(10*x))/(2*dx); d...

ungefär 20 timmar ago | 0

| accepted

Answered

Storing data from a function into and array to be recalled?

a = arduino('com3', 'uno'); s = servo(a, 'D10','MaxPulseDuration', .0025, 'MinPulseDuration', .0005); n = 60; x=zeros(1,n); ...

Storing data from a function into and array to be recalled?

a = arduino('com3', 'uno'); s = servo(a, 'D10','MaxPulseDuration', .0025, 'MinPulseDuration', .0005); n = 60; x=zeros(1,n); ...

ungefär 20 timmar ago | 1

| accepted

Answered

How can I get the intensity of individual pixel and average intensity of all from a given image

"How can I get the intensity of individual pixel and average intensity of all from a given image" "get the intensity of individ...

How can I get the intensity of individual pixel and average intensity of all from a given image

"How can I get the intensity of individual pixel and average intensity of all from a given image" "get the intensity of individ...

ungefär 20 timmar ago | 0

Answered

How to draw a zigzag line in MATLAB?

x=randi(100,[1,10]); y=randi(100,[1,10]); line(x,y)

How to draw a zigzag line in MATLAB?

x=randi(100,[1,10]); y=randi(100,[1,10]); line(x,y)

en dag ago | 0

Answered

Array indices must be positive integers or logical values.

Please check it has modified (slightly), no need of loop here. omega=2*pi*10; t=0:0.001:10; f=linspace(0,500,length(t)); n=1...

Array indices must be positive integers or logical values.

Please check it has modified (slightly), no need of loop here. omega=2*pi*10; t=0:0.001:10; f=linspace(0,500,length(t)); n=1...

en dag ago | 1

| accepted

Answered

Find column where one value is NaN

"Find column where one value is NaN" a=[0.5, NaN, 0.5, 0.5, 0.5; 0.5, NaN, 0.5, NaN, NaN]; [r,c]=find(isnan(a)); col_data...

Find column where one value is NaN

"Find column where one value is NaN" a=[0.5, NaN, 0.5, 0.5, 0.5; 0.5, NaN, 0.5, NaN, NaN]; [r,c]=find(isnan(a)); col_data...

en dag ago | 1

Answered

The surface Z must contain more than one row or column.

Is this? Please make C and D vectors with same girds points p=2; %range and domain of the graph a=-p:0.1:p; b=-p:0.1:p; [A,B...

The surface Z must contain more than one row or column.

Is this? Please make C and D vectors with same girds points p=2; %range and domain of the graph a=-p:0.1:p; b=-p:0.1:p; [A,B...

en dag ago | 0

Answered

Log display problem semilogx

a=5; b=2; x=0.0001:1000000; y=a*x+b; figure semilogx(x,y)

Log display problem semilogx

a=5; b=2; x=0.0001:1000000; y=a*x+b; figure semilogx(x,y)

en dag ago | 0

| accepted

Answered

Plot, fitness function.

Please note I have consider random x value here, please change as per the data. Also there is no role of gama in fitness, as gam...

Plot, fitness function.

Please note I have consider random x value here, please change as per the data. Also there is no role of gama in fitness, as gam...

en dag ago | 0

Answered

how to sum a 9 matrice in a for loop ?

"May the question is: how to sum a 9 matrices elements in a for loop?" No need of loop, here mat is given matrix result=sum(m...

how to sum a 9 matrice in a for loop ?

"May the question is: how to sum a 9 matrices elements in a for loop?" No need of loop, here mat is given matrix result=sum(m...

en dag ago | 0

Answered

how to calculate euclidean norm of two points?

As you mentioned ||x-y||^2 (abs(x-y))^2 If not, please do read here the theory and tell us the expression

how to calculate euclidean norm of two points?

As you mentioned ||x-y||^2 (abs(x-y))^2 If not, please do read here the theory and tell us the expression

en dag ago | 0

Answered

Bar charts with different colors

One way: SC01_LS02_TVSR_112=[0.0127 0.0139 0.0058 0.0112 0.0048 0.0126 0.0037]; col=['r','y','b','k','b','k','y']; % Decide co...

Bar charts with different colors

One way: SC01_LS02_TVSR_112=[0.0127 0.0139 0.0058 0.0112 0.0048 0.0126 0.0037]; col=['r','y','b','k','b','k','y']; % Decide co...

en dag ago | 0

Answered

How can I select y data given a certain x value?

load Zn1.txt Zn1_data=Zn1; V_Zn1=Zn1_data(:,1); A_Zn1=Zn1_data(:,2); AA_Zn1(find(V_Zn1~=-1.7001))=0; Is This? "I would li...

How can I select y data given a certain x value?

load Zn1.txt Zn1_data=Zn1; V_Zn1=Zn1_data(:,1); A_Zn1=Zn1_data(:,2); AA_Zn1(find(V_Zn1~=-1.7001))=0; Is This? "I would li...

en dag ago | 0

| accepted

Answered

find jordan canonical form of a matrix

J=jordan(A); % where A is Given Matrix Or In your code J represents the same https://in.mathworks.com/help/symbolic/sym.jordan...

find jordan canonical form of a matrix

J=jordan(A); % where A is Given Matrix Or In your code J represents the same https://in.mathworks.com/help/symbolic/sym.jordan...

2 dagar ago | 0

Answered

How to remove candidates which are present on blood vessels?

"I have two images ,one is the candidates image and the blood vessels image.I have studied that candidates won't occur on blood ...

How to remove candidates which are present on blood vessels?

"I have two images ,one is the candidates image and the blood vessels image.I have studied that candidates won't occur on blood ...

3 dagar ago | 0

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Answered

Is my uint16 image matrix and RGB image?

Are the unit16 images an rgb images? Is there a way to determine that? No, it doesnot mean that, this mean data types Check th...

Is my uint16 image matrix and RGB image?

Are the unit16 images an rgb images? Is there a way to determine that? No, it doesnot mean that, this mean data types Check th...

3 dagar ago | 0

Answered

How can I show this text in the command window?

fprintf and disp

How can I show this text in the command window?

fprintf and disp

3 dagar ago | 0

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Answered

adding constant offset to sensor

Is this? a=0.5 % amplitude f=5 % frequency t=linspace(0,10,500); acc=-4*a.*pi^2./f.^2 .* sin(2*pi./f .* t); p...

adding constant offset to sensor

Is this? a=0.5 % amplitude f=5 % frequency t=linspace(0,10,500); acc=-4*a.*pi^2./f.^2 .* sin(2*pi./f .* t); p...

3 dagar ago | 0

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Answered

I have this code but I want to add each of my values of xn into an array then plot these on a graph. How would i do this?

Do array indexing inside while loop likewise % Define i=1; % also define y(1) and xn(1) while condition xn(i)=(xn(i)+a/xn(...

I have this code but I want to add each of my values of xn into an array then plot these on a graph. How would i do this?

Do array indexing inside while loop likewise % Define i=1; % also define y(1) and xn(1) while condition xn(i)=(xn(i)+a/xn(...

3 dagar ago | 1

Answered

can any one provide the concatenation of logical bits

"could you please give me a suggestion to concatenate the logical bits of p,q,r,s" result=[logical(p),q,r,s]

can any one provide the concatenation of logical bits

"could you please give me a suggestion to concatenate the logical bits of p,q,r,s" result=[logical(p),q,r,s]

3 dagar ago | 0

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Answered

How to avoid printing certain values in axes of a plot?

set(gca,'XTick',1:1:4)

How to avoid printing certain values in axes of a plot?

set(gca,'XTick',1:1:4)

3 dagar ago | 0

| accepted