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Find circularity in low signal to noise image with light relfections
Try this. Adjust parameters as needed to get what you want. % Demo by Image Analyst clc; % Clear the command window. clos...

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how to find average curve of n curves? n=3 in this case
Try findobj or see if you can get XData and YData properties of the figure. Otherwise see if you can get the data or equations/...

alrededor de 3 años hace | 0

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Could individual campus license be used in different computers?
You are allowed to change computers a few times per year, like if you get a new one. I don't know what a "campus" license is. ...

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How to change angles to 0 to 180
You say "What I wanted to do is I want to put all the following angles in the first quadrant ([0,90] so the ones that are alread...

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How to change angles to 0 to 180
How about just adding 180 to all angles less than 0, so for example -135 becomes +45 degrees. mask = angles < 180; angles(mask...

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How can I save "alpha" and "beta" parameters as double using fitdist command?
Try this (untested): % Preallocate a and b column vectors. One element for each file. a = zeros(50, 1); b = zeros(50, 1); %...

alrededor de 3 años hace | 0

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How to hold previous figures when using imagesc?
If you want to paste an opaque copy of the newest image on top of existing images, see my attached copy and paste demo. If you ...

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Conditional if loop for addition of three consecutive numbers in app designer interface
Try it this way (untested and not using disp): x1 = app.EditField.Value x2 = app.EditField_2.Value x3 = app.EditField_3.Valu...

alrededor de 3 años hace | 0

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How to set up a check box to review EMG signals?
Learn how to use App Designer and you can do that: MATLAB App Designer

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Hi guys, my code doesn't run i couldn't debug this, could you anyone help me?
Put the fuunction definition at the END of your script, not near the beginning. Then you need to CALL IT, passing it all the ar...

alrededor de 3 años hace | 0

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plotting trajectory direction of a path
See plot and quiver

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please help to decode the error using data mining
Add this to the end of your .m file: %=========================================================================================...

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Requesting a demo code for calculating second-order statistics (contrast, correlation, energy, homogeneity, and entropy) for medical images.
Try graycoprops. I'm also attaching a related GLCM demo and image moments demo. Good luck. help graycoprops

alrededor de 3 años hace | 0

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Find value at which a line changes its slope
See if my attached piecewise linear fit identifies it correctly for you. If not, then attach your data after reading this: T...

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Read notepad into a variable
Try textLines = readlines(fileName); If you have any more questions, then attach your text file with the paperclip icon after ...

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How to shade the area between two lines (constructed by large number of data points)
FAQ: https://matlab.fandom.com/wiki/FAQ#How_do_I_shade_the_region_between_two_curves?

alrededor de 3 años hace | 0

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Fit gaussian surface on 3D data
That's not 3-D data. That is 2-D data. How about you find the centroid with code I gave you before, then get the average radia...

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sortrows "not enough input arguments"
x = randi(99, 5, 2) x=sortrows(x,1) Seems to work fine. What did you do differently in the 59 prior lines of code?

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Error prediction of imregister results
Try using imabsdiff. However if there are black triangles rotated in, you don't want to compare those so you might have to take...

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my plot is blank?
What does this show in the command window? whos velocitiesB1 whos velocitiesB2 plot(velocitiesB1,velocitiesB2,'b-*'); Please...

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how this command works"meanGL = mean(blackMaskedImage(binaryImage));". My input image is a HSV image. How it calculates the mean.
Let's just take it one step at a time. See if this helps explain it grayScaleImage = magic(6) binaryImage = grayScaleImage > ...

alrededor de 3 años hace | 0

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Why is the horizontal axis 0 to 1 in a histogram for a rgb image?
Please attach one of your images and code to read it in. Evidently your image got converted to floating point. And there is no...

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How to reduce valid coin mask true pixels outside valid coins?
Don't use imfindcircles. Use bwareafilt to select only a certain number of blobs, or blobs in a certain size range.

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How to calcutate the area of each cell?
How were the white boundaries obtained and in what form are they? You can probably use regionprops() if you can make a mask of ...

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How to rescale a set of data where the maximum value needs to be the lowest of the rescaled dataset
Perhaps imadjust help imadjust

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Is it possible to have the line number of the editor window highlighted when I click somewhere in the code?
See the Preferences on the Home Tab of the tool ribbon. Look at the first checkbox: Check the box and choose your color. Th...

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Mean of CIE L*a*b values in a masked image
Yes, it was a mess but that's OK, I fixed it: % Read in demo image. rgbImage = imread('peppers.png'); subplot(1, 2, 1); imsh...

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I cant locate the black region on my image using regionprops and imfindcircles.
Try this: % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except those of imtool...

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I cant locate the black region on my image using regionprops and imfindcircles.
You can threshold and then use imclearborder and then bwareafilt. If you need more help, attach the original image by itself. ...

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What does this command line mean? (matrix A =[A t])
It means, if A is a row vector, that the value of t is to be stitched onto the right side of row vector A to form a new row vect...

alrededor de 3 años hace | 0