Answered

How can i call the first point that appears in a matrix with a certain value?

"I tried this way however once there is more than one 6 in the matrix firstappearence value would be incorrect." So, if you wan...

How can i call the first point that appears in a matrix with a certain value?

"I tried this way however once there is more than one 6 in the matrix firstappearence value would be incorrect." So, if you wan...

15 Tage ago | 0

Answered

I need to contour a round object in a image.

Once you've gotten the largest blob, if you want to outline the region in red over the original image (in the overlay), you can ...

I need to contour a round object in a image.

Once you've gotten the largest blob, if you want to outline the region in red over the original image (in the overlay), you can ...

15 Tage ago | 1

Answered

get segmentation size image

Try getting the bounding box of the convex hull. mask = bwconvhull(mask, 'union'); props = regionprops(mask, 'BoundingBox'); ...

get segmentation size image

Try getting the bounding box of the convex hull. mask = bwconvhull(mask, 'union'); props = regionprops(mask, 'BoundingBox'); ...

15 Tage ago | 0

Answered

Create polynomials in MATLAB

Did you try to just type it out, like dv = 3; x = [1, 2] % Whatever.... lamdaVector = [0.6, 0.4]; lambda = 0; for k = 1 : d...

Create polynomials in MATLAB

Did you try to just type it out, like dv = 3; x = [1, 2] % Whatever.... lamdaVector = [0.6, 0.4]; lambda = 0; for k = 1 : d...

16 Tage ago | 0

Answered

detecting elements change in an array

Try this: x=zeros(1,36); % Get 20 random indexes to turn to 1's. indexes = sort(randperm(length(x), 20)); % Initialize by tu...

detecting elements change in an array

Try this: x=zeros(1,36); % Get 20 random indexes to turn to 1's. indexes = sort(randperm(length(x), 20)); % Initialize by tu...

16 Tage ago | 0

Answered

How to save a matix as an image?

Save it as a .mat file instead of an image format file save('my floating point image.mat', 'myImage'); % Save myImage into a .m...

How to save a matix as an image?

Save it as a .mat file instead of an image format file save('my floating point image.mat', 'myImage'); % Save myImage into a .m...

16 Tage ago | 1

Answered

how can i change the dimension of the matrix?

Try this: g2 = [g(:,:,1); g(:,:,2); g(:,:,3)]; The result is 153 rows by 500 columns. Here's a full demo with a 3-D RGB true ...

how can i change the dimension of the matrix?

Try this: g2 = [g(:,:,1); g(:,:,2); g(:,:,3)]; The result is 153 rows by 500 columns. Here's a full demo with a 3-D RGB true ...

16 Tage ago | 0

Answered

Intersection of two colored images and display output also as colored image where common regions are only highlighted

diffImage = imabsdiff(img1, img2); show(diffImage); Common pixel values will subtract to zero and be black. Any non-black pix...

Intersection of two colored images and display output also as colored image where common regions are only highlighted

diffImage = imabsdiff(img1, img2); show(diffImage); Common pixel values will subtract to zero and be black. Any non-black pix...

16 Tage ago | 0

| accepted

Answered

how do you plot graph sine

Try this. It should be pretty self-explanatory. Note in the first plot that, since it's not using enough points (sampling belo...

how do you plot graph sine

Try this. It should be pretty self-explanatory. Note in the first plot that, since it's not using enough points (sampling belo...

16 Tage ago | 1

| accepted

Answered

I was wondering how to convert a file created using ascill to an integer.

Try writematrix writematrix(data, 'my data.txt');

I was wondering how to convert a file created using ascill to an integer.

Try writematrix writematrix(data, 'my data.txt');

16 Tage ago | 1

| accepted

Answered

im finding error in line 18

Perhaps instead of that loop assigning 298 to everything you simply want % Get a list of all the j and k we want to iterate ove...

im finding error in line 18

Perhaps instead of that loop assigning 298 to everything you simply want % Get a list of all the j and k we want to iterate ove...

16 Tage ago | 0

Answered

How can I color all objects as the same in an image where several objects have been extracted in the form of a label matrix?

You don't need bwlabel(), label2rgb(), or colormaps. You can simply use imoverlay: grayImage = imread('rice.png'); % A gray sc...

How can I color all objects as the same in an image where several objects have been extracted in the form of a label matrix?

You don't need bwlabel(), label2rgb(), or colormaps. You can simply use imoverlay: grayImage = imread('rice.png'); % A gray sc...

16 Tage ago | 0

| accepted

Answered

how to remove outliers in large data sets?

Try this: data = readmatrix('Copy of data.xlsx'); x = data(:, 1); y = data(:, 2); % Plot just the first cycle. last = round...

how to remove outliers in large data sets?

Try this: data = readmatrix('Copy of data.xlsx'); x = data(:, 1); y = data(:, 2); % Plot just the first cycle. last = round...

16 Tage ago | 1

| accepted

Answered

read file containing mixed content

Try this: % Get file name fullFileName = fullfile(pwd, 'a.txt') if ~isfile(fullFileName) errorMessage = sprintf('Error: ...

read file containing mixed content

Try this: % Get file name fullFileName = fullfile(pwd, 'a.txt') if ~isfile(fullFileName) errorMessage = sprintf('Error: ...

16 Tage ago | 0

| accepted

Answered

i need help with an older version of matlab, i don't understand the error message

metrique2 is a matrix with rows and columns, let's call them R and C. metrique2(i, :) or metrique2(j, :) is the i'th or j'th ro...

i need help with an older version of matlab, i don't understand the error message

metrique2 is a matrix with rows and columns, let's call them R and C. metrique2(i, :) or metrique2(j, :) is the i'th or j'th ro...

16 Tage ago | 0

Answered

Does Matlab have the function to format script?

Type control-a, to select all text in your editor window, then control-i, to fix (properly align) the indenting of your lines ...

Does Matlab have the function to format script?

Type control-a, to select all text in your editor window, then control-i, to fix (properly align) the indenting of your lines ...

16 Tage ago | 1

Answered

Find local maximum from jpg

I see about 3 different regions. I'm not sure what is sand or water or something else. If you use drawfreehand to manually tra...

Find local maximum from jpg

I see about 3 different regions. I'm not sure what is sand or water or something else. If you use drawfreehand to manually tra...

16 Tage ago | 0

Answered

How to implement kriging in Matlab?

I believe I saw somewhere in the documentation that scatteredInterpolant did kriging. Attached is a demo.

How to implement kriging in Matlab?

I believe I saw somewhere in the documentation that scatteredInterpolant did kriging. Attached is a demo.

16 Tage ago | 0

Answered

What to do when teacher asks you to pirate matlab

So open software is great?!?! One word "log4j". Enough said? Here's some more open software vulerabilities: https://www.wh...

What to do when teacher asks you to pirate matlab

So open software is great?!?! One word "log4j". Enough said? Here's some more open software vulerabilities: https://www.wh...

16 Tage ago | 1

Answered

How to adjust 'measured distance' on a binary image

You can sum the white pixels horizontally and then threshold it at some percentage of the max width verticalProfile = sum(mask,...

How to adjust 'measured distance' on a binary image

You can sum the white pixels horizontally and then threshold it at some percentage of the max width verticalProfile = sum(mask,...

17 Tage ago | 1

| accepted

Answered

How to compare two non-integer value together?

Do you mean, if they're vectors: logicalIndexes = x2 > (0.80 * x1); % or linearIndexes = find(logicalIndexes); Or if they're ...

How to compare two non-integer value together?

Do you mean, if they're vectors: logicalIndexes = x2 > (0.80 * x1); % or linearIndexes = find(logicalIndexes); Or if they're ...

17 Tage ago | 0

Answered

Hi. Anyone has an idea how to find the area at red region area?

% Take the 3 largest blobs mask = bwareafilt(mask, 3); % Assume we want the middle one. Label the blobs 1, 2, and 3. [label...

Hi. Anyone has an idea how to find the area at red region area?

% Take the 3 largest blobs mask = bwareafilt(mask, 3); % Assume we want the middle one. Label the blobs 1, 2, and 3. [label...

18 Tage ago | 0

| accepted

Answered

is there a better way of accessing the csv files from each folders in the path below?

How about getting all the filenames and looping over them. topLevelFolder = 'F:\3-PIV_Experimental_Data\Outlet_110\'; filePatt...

is there a better way of accessing the csv files from each folders in the path below?

How about getting all the filenames and looping over them. topLevelFolder = 'F:\3-PIV_Experimental_Data\Outlet_110\'; filePatt...

18 Tage ago | 0

Answered

how to find location on a blob

How about [rows, columns] = find(binaryImage); [rightMostColumn, index1] = max(columns) [bottomMostRow, index2] = max(rows) ...

how to find location on a blob

How about [rows, columns] = find(binaryImage); [rightMostColumn, index1] = max(columns) [bottomMostRow, index2] = max(rows) ...

18 Tage ago | 0

| accepted

Answered

Error found: Index in position 1 is invalid. Array indices must be positive integers or logical values. Error in MyCost (line 25) z=z+w(i,j)*d(p(i),p(j)); Error

See the FAQ for a thorough explanation. https://matlab.fandom.com/wiki/FAQ#.22Subscript_indices_must_either_be_real_positive_in...

Error found: Index in position 1 is invalid. Array indices must be positive integers or logical values. Error in MyCost (line 25) z=z+w(i,j)*d(p(i),p(j)); Error

See the FAQ for a thorough explanation. https://matlab.fandom.com/wiki/FAQ#.22Subscript_indices_must_either_be_real_positive_in...

18 Tage ago | 0

Answered

IF statement not executing

You need to check the index of the drop down list, or else get the selected string and compare the that string (only) to "Plot" ...

IF statement not executing

You need to check the index of the drop down list, or else get the selected string and compare the that string (only) to "Plot" ...

18 Tage ago | 0

| accepted

Answered

Really interesting question.Does it have a solution?

If you're looking for a MATLAB function, try linspace().

Really interesting question.Does it have a solution?

If you're looking for a MATLAB function, try linspace().

19 Tage ago | 0

Answered

How can I get the blue line in google maps screenshot? And also how can I fill the blanks in line?

Well you could try imclose() though that may change the shapes slightly. Or you could try searching for edge linking routines. ...

How can I get the blue line in google maps screenshot? And also how can I fill the blanks in line?

Well you could try imclose() though that may change the shapes slightly. Or you could try searching for edge linking routines. ...

19 Tage ago | 0

Answered

Segmenting lung nodules from Chest X-ray images

Go here for published algorithms: http://www.visionbib.com/bibliography/contentsmedical.html#Medical%20Applications,%20CAT,%20M...

Segmenting lung nodules from Chest X-ray images

Go here for published algorithms: http://www.visionbib.com/bibliography/contentsmedical.html#Medical%20Applications,%20CAT,%20M...

19 Tage ago | 0