679 total contributions since 2017

#Freelancer (Part-Time)

#Image Processing

#Alma-mater Tezpur University India

Answered

crop an image with control points

For code you are requested to contact me through author page (Or email:kalyan.acharjya@gmail.com). The code belongs to me an...

crop an image with control points

For code you are requested to contact me through author page (Or email:kalyan.acharjya@gmail.com). The code belongs to me an...

8 hours ago | 0

Answered

How many ways are generally used for image segmentation using only Image processing?

Yes, the approach of image segmentation depends on type of input image and complexity associated with the ROI and back ground ob...

How many ways are generally used for image segmentation using only Image processing?

Yes, the approach of image segmentation depends on type of input image and complexity associated with the ROI and back ground ob...

16 hours ago | 0

Answered

How can i find out homogeneity of an image?

Try this way- I=imread('circuit.tif'); %...........^^^ change name % creation of gray-level co-occurrence matrices from imag...

How can i find out homogeneity of an image?

Try this way- I=imread('circuit.tif'); %...........^^^ change name % creation of gray-level co-occurrence matrices from imag...

1 day ago | 1

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Answered

why is this code showing zero for all equations??

Enter the val value such that it must contain in x, then only following give some non zero value i=find(x==val); Other wise ...

why is this code showing zero for all equations??

Enter the val value such that it must contain in x, then only following give some non zero value i=find(x==val); Other wise ...

1 day ago | 0

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Answered

counting the number of times a number appears next to the same one in a row?

num=[1 2 3 4 5 6]; % Change this one and test uniq_num=unique(num); digit_repeat=length(num)-length(uniq_num) Its works right...

counting the number of times a number appears next to the same one in a row?

num=[1 2 3 4 5 6]; % Change this one and test uniq_num=unique(num); digit_repeat=length(num)-length(uniq_num) Its works right...

3 days ago | 0

Answered

what is the best method for resizing a binary mask to preserve its shape?

Have you tried with any approach, resizing the binary mask doesnot effect on its shape? #Simple way mask_modified=mask(1:2:end...

what is the best method for resizing a binary mask to preserve its shape?

Have you tried with any approach, resizing the binary mask doesnot effect on its shape? #Simple way mask_modified=mask(1:2:end...

3 days ago | 0

Answered

I want to sum up specific array in a matrix

x =[2.356 37 1.351 39 4.394 37 3.622 39 4.489 39 3.135 37 6.653 39] idx=(find(x(:,2)==37))'; sum_37=0;...

I want to sum up specific array in a matrix

x =[2.356 37 1.351 39 4.394 37 3.622 39 4.489 39 3.135 37 6.653 39] idx=(find(x(:,2)==37))'; sum_37=0;...

3 days ago | 1

Answered

Finding maximum in a matrix

Suppose mat is 1000x1 matrix %this will give the maximum value within the matrix uptp 50 rows and 60 colm mat1=mat(1:50,1:60);...

Finding maximum in a matrix

Suppose mat is 1000x1 matrix %this will give the maximum value within the matrix uptp 50 rows and 60 colm mat1=mat(1:50,1:60);...

3 days ago | 0

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Answered

Erros on Spatial Dynamic Panel Estimation

All custom functions files should be save individually in different matlab files, also file names should be same as functions na...

Erros on Spatial Dynamic Panel Estimation

All custom functions files should be save individually in different matlab files, also file names should be same as functions na...

3 days ago | 0

Answered

How do you remove specific rows from a cell array?

How do you remove specific rows from a cell array? data=num2cell(rand(70,1)); % Considering random cell array %delete suppose ...

How do you remove specific rows from a cell array?

How do you remove specific rows from a cell array? data=num2cell(rand(70,1)); % Considering random cell array %delete suppose ...

3 days ago | 1

Answered

display info of pixel after for loop

improfile; Read here Is this are you looking for?

display info of pixel after for loop

improfile; Read here Is this are you looking for?

4 days ago | 0

Answered

change x/y/z axis values in surf(X,Y,Z) plot

[X,Y] = meshgrid(1:0.5:10,1:20); Z = sin(X) + cos(Y); surf(X,Y,Z) xlim([0 21]); ylim([1 10]); zlim([0 50]); Chosse the x,y...

change x/y/z axis values in surf(X,Y,Z) plot

[X,Y] = meshgrid(1:0.5:10,1:20); Z = sin(X) + cos(Y); surf(X,Y,Z) xlim([0 21]); ylim([1 10]); zlim([0 50]); Chosse the x,y...

4 days ago | 0

Answered

how to calculate amplitude of the first and second peak of the damp sine wave,explain with matlab code?

findpeaks read here

how to calculate amplitude of the first and second peak of the damp sine wave,explain with matlab code?

findpeaks read here

4 days ago | 1

Answered

How to find the largest area in this grayscale image with discontinuities in between?

Convert to binary image (Proper segmentation) Finding the largest blob (bwlabel) Sum of all pixels in largest blobs (binary i...

How to find the largest area in this grayscale image with discontinuities in between?

Convert to binary image (Proper segmentation) Finding the largest blob (bwlabel) Sum of all pixels in largest blobs (binary i...

5 days ago | 0

Answered

patch extraction of an image

im=imread('new.jpeg'); k=1; [rows colm]=size(im); for i=1:10:rows-10 for j=1:10:colm-10 im_sub=im(i:i+9,j:j+9); ...

patch extraction of an image

im=imread('new.jpeg'); k=1; [rows colm]=size(im); for i=1:10:rows-10 for j=1:10:colm-10 im_sub=im(i:i+9,j:j+9); ...

5 days ago | 0

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Answered

how to open a thermal image in matlab

How to open a thermal image in matlab? im=imread('image name.jpg'); imshow(im); Is there any issue?

how to open a thermal image in matlab

How to open a thermal image in matlab? im=imread('image name.jpg'); imshow(im); Is there any issue?

5 days ago | 0

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Answered

identify numbers greater than a specific number

T =[3 5 6 7 8 9 2 6 9 10 2 12 13]; idx=find(T>7) % Gives index position num=T(idx) % Gives Numbers

identify numbers greater than a specific number

T =[3 5 6 7 8 9 2 6 9 10 2 12 13]; idx=find(T>7) % Gives index position num=T(idx) % Gives Numbers

5 days ago | 0

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Answered

Optimizing nested for loops for image analysis

TPFsum=sum(TPFstack(:,:,1:z,:)); Is this?

Optimizing nested for loops for image analysis

TPFsum=sum(TPFstack(:,:,1:z,:)); Is this?

5 days ago | 0

Answered

save the slices of a deformes volume

for slice_number=1:430 b_slices=b(:,:,slice_number); % Save Individually end Or b_slices={}; for slice_number=1:430 b_sli...

save the slices of a deformes volume

for slice_number=1:430 b_slices=b(:,:,slice_number); % Save Individually end Or b_slices={}; for slice_number=1:430 b_sli...

5 days ago | 0

Answered

When inserting an image into MATLAB, how do you read the n-by-3 array for pixels?

When Matlab read the image, it now matrix having elements value (Pixel Value) and spatial co-ordinates (x,y) that is position of...

When inserting an image into MATLAB, how do you read the n-by-3 array for pixels?

When Matlab read the image, it now matrix having elements value (Pixel Value) and spatial co-ordinates (x,y) that is position of...

5 days ago | 0

Answered

discriminant analysis with tensor representation

"I found one question that there is different repeat times when running the same data with the same algorithm" Yes, data may be...

discriminant analysis with tensor representation

"I found one question that there is different repeat times when running the same data with the same algorithm" Yes, data may be...

6 days ago | 0

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Answered

What represents the Y-axis in matlab's histogram?

What represents the Y-axis in matlab's histogram? it represents bins Read here, you will get the idea. Still issue, let us kno...

What represents the Y-axis in matlab's histogram?

What represents the Y-axis in matlab's histogram? it represents bins Read here, you will get the idea. Still issue, let us kno...

6 days ago | 0

Answered

How to convert RGB to hsv?

For one frame, you can check here, as you mentioned the reference (wiki), I have implmented the same from here I assumed, you c...

How to convert RGB to hsv?

For one frame, you can check here, as you mentioned the reference (wiki), I have implmented the same from here I assumed, you c...

8 days ago | 0

Answered

How to use blockproc by location?

#Edited Considering Input Image is Gray, let say image1 and location of pixel is x,y image1(y-1:y+1,x-1:x+1)=255;

How to use blockproc by location?

#Edited Considering Input Image is Gray, let say image1 and location of pixel is x,y image1(y-1:y+1,x-1:x+1)=255;

8 days ago | 0

Answered

select the odd or even frames of a volume

Let say Image1 is the original 3D image resultant_image=image1(:,:,1:2:430)

select the odd or even frames of a volume

Let say Image1 is the original 3D image resultant_image=image1(:,:,1:2:430)

8 days ago | 0

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Answered

Matlab code to solve an integral

#Edited syms x kw = 91371; CaO= 1.81 * 10 ^ -4; FaO= 0.1233; K = 2; fun = (FaO*(1+(K*CaO)*(1-x)))/(kw*CaO*(1-x)) int(fun)...

Matlab code to solve an integral

#Edited syms x kw = 91371; CaO= 1.81 * 10 ^ -4; FaO= 0.1233; K = 2; fun = (FaO*(1+(K*CaO)*(1-x)))/(kw*CaO*(1-x)) int(fun)...

9 days ago | 0

Answered

How do I calculate the precision, recall and F1score for an image database?

To calcuate the precision and recall you need ground truth images Lets clear the issue You have dermoscopy images You applied...

How do I calculate the precision, recall and F1score for an image database?

To calcuate the precision and recall you need ground truth images Lets clear the issue You have dermoscopy images You applied...

9 days ago | 0

Answered

How can I create a loop and plot a graph after each loop?

w = 0:50E3:300E3; omega = w.*2.*pi./60; % Array of omega values for beta=1:1:4 omega_n = 3*beta; % Omega_n is...

How can I create a loop and plot a graph after each loop?

w = 0:50E3:300E3; omega = w.*2.*pi./60; % Array of omega values for beta=1:1:4 omega_n = 3*beta; % Omega_n is...

10 days ago | 0

Answered

How do I linspace this plot?

stem(freq/1e+12,2*abs(X(1:NFFT/2+1))) Use stem, instead of plot

How do I linspace this plot?

stem(freq/1e+12,2*abs(X(1:NFFT/2+1))) Use stem, instead of plot

10 days ago | 0

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