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Turlough Hughes


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matlab code How to dived 400*500 image into 40*50 and calculate object area in each block. put all blocks in one imafe
You can find out which blocks are crops (according to your definitions) as follows: B = blockproc(Img, [40 50], @(block_struct)...

約16時間 前 | 0

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By using computervision toolbox I'm trying to play a video in MATLAB using this code, but only one frame is displayed on the window
You could do the following: a = vision.VideoFileReader('spur gear.avi' , 'VideoOutputDataType', 'double'); VideoPlayer = visio...

約17時間 前 | 0

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How can I compare distance (not only between two points, but also a set of points)
Dist = sqrt(diff(X,1,2).^2 +diff(Y,1,2).^2);

1日 前 | 0

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Simulation Domain (Region)?
I would say what you want is the meshgrid function. Have a look at the <https://uk.mathworks.com/help/matlab/ref/meshgrid.html d...

2日 前 | 0

質問


Is there a property to modify the marker size of a drawline graphics object?
I'm using the drawline function and wondering if it would be possible to modify the marker sizes? If for example we have the fol...

2日 前 | 0 件の回答 | 0

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How to reshape a single column matrix in the following example?
If you write the following you can directly modify the CT_matrix, no need to separate it out into a column vector: ind_lte_20 =...

3日 前 | 0

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Take the sum of an array until a limit is reached determined by a vector of the same length
For a single result you could write the following to get the sum for an arbitrary track length of 10 mm, and you have the option...

4日 前 | 1

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Numbering options in a table
You could change Line 58 to the following: disp(crossSectionInfo.Resistance(str2double(result)))

4日 前 | 0

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I don't get the correct output from my function
The function is correct. However, because this function outputs very large numbers depending on your range (in terms of absolut...

10日 前 | 0

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質問


How could I make a callback that updates when the user moves an roi?
I'm making an app which loads and displays the same image side by side in app.UIAxes and app.UIAxes2. I have a rectangle roi obj...

13日 前 | 0 件の回答 | 0

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To determine the number of distinct pairs of value(s) in each column of matrix.
You could do the following. First find rows where there is only one other element equal to the element in the first column idx ...

13日 前 | 0

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How to print contents of nested cell array to uitable?
I think the best thing to do is make another cell array, B, as follows: nRows = max(cellfun(@numel,A)) nCols = numel(A) B = c...

14日 前 | 0

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clustering nearest 5 elements of a data
You could do the following which is to find the 5 minimum absolute differences for each element in core. [~,idx] = mink(abs(dat...

14日 前 | 1

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Merge all rows in a cell into one row
Similar to numeric arrays writting NewC2LatLon(:) returns all the all elements of the array in a single column. However, I think...

19日 前 | 0

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find mean of 2d slice in 3d segmented volume
Ok I think I know what you want. Looking at the documentation for roipoly, I assume you got a binary image representing the regi...

19日 前 | 0

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Finding the closest point on a line to another point
Solving for the discrete points is actually a lot easier. Using your data as follows: line.x = [1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5,...

約1ヶ月 前 | 0

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summing elements of an array until a value appears
Say your array is called data: q=2; data = [1 2 3; 1 3 2; 2 1 3; 1 0 3; 1 2 2]; % Includes rows without any values = q, and re...

約1ヶ月 前 | 0

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Matlab corresponding values between matrices?
This will show values of B that exist in A and which are also less than N. result = B(ismember(B,A) & B<N) If you need find ...

約1ヶ月 前 | 0

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Unexpected output form intersect (polyxpoly)
When you're using intersect to do what you have described you need to ensure you have inputs of either two polyshapes, a polyvec...

約1ヶ月 前 | 1

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How to write a loop for this case?
I was also taking the route of putting them into a structure with a fieldname for each month. months = {'Jan','Feb','Mar','Apr'...

約1ヶ月 前 | 1

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Image Processing Edge Detection
You could try the following modification. The main thing I did was use bwareafilt to filter out all but the largest area, then f...

約1ヶ月 前 | 0

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The output matrix values are either 0 or 1 but i want it between [0,1]
When you load in the image the data type is uint8 - unsigned 8 bit integers. So you can't get values between 0 and 1 unless you ...

約1ヶ月 前 | 0

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dot product between system of vectors
Based on your description you can do the following, transpose the Y and then it's a straight forward case of matrix multiplicati...

約1ヶ月 前 | 0

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Drawing Polygon shapes with data
You can draw the rectangles from your struct as follows: k = size(out,2); figure(), hold on for i = 1:k a = size(out(i)....

約1ヶ月 前 | 0

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How do i check the frequency of an element in a multi level cell array?
The following loads and concatenates all elements of your cell array, including the 1 x 2 string in result2{1,1}(7), into a sing...

約1ヶ月 前 | 0

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incorrect input to ezplot function
ezplot requires a function handle as an input whereas you are inputting a vector. Seeing as you have the results as a vector I t...

約1ヶ月 前 | 1

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How can I concatenate two vectors?
How can I 'join vector C and signal to get a matrix? Depends on whether signal is a column vector or row vector If it's a co...

約1ヶ月 前 | 0

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How to do operations on nested cell array?
This should hopefully work but i ament able to test it myself right now as I'm away from my computer. The idea is to pass onecel...

約1ヶ月 前 | 0

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How do i plot maximum values
You weren't actually calling the function. Secondly, the function had no input argument for threshold so I've included that. I a...

約2ヶ月 前 | 0

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how can i add column in matrix?
Depends what you want in that column but you could for example add a column of zeros as follows: A = [A zeros(size(A,1),1)]

2ヶ月 前 | 0

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