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Question


How to get the indices corresponding to the width of a peak?
Hi, I'm using the findpeaks function to find the peaks of an array. After this, I should get the indices of the array corresp...

ungefär 7 år ago | 1 answer | 0

1

answer

Question


Approach to sounds recognition with Machine or Deep Learning techniques?
Hi, I'm working about a problem of sounds recognition: I could have ten different noises, and I need the computer can classif...

mer än 7 år ago | 1 answer | 0

1

answer

Question


How to export cell of double arrays to Excel?
Hi, I have to declare the following variable: Param = {[1,2],[3,4],[5,6],[7,8,9,10]}; and I need to export it into an...

mer än 7 år ago | 1 answer | 1

1

answer

Question


How to trim a video?
Hi, I have a color video of about 10 minutes, and it also has an audio track. I have to trim it in order to extract the centr...

mer än 7 år ago | 1 answer | 0

1

answer

Answered
How to save vector columnwise in Excel file
Hi, this code could be valid for you: for i=1:30 vec = randn(5,1); % Syntax: xlswrite(filename,A...

mer än 7 år ago | 0

Question


Registration Estimator can not register the images
Hi, I'm trying to use the Registration Estimator of the Computer Vision System Toolbox to register two images, named fixed an...

mer än 7 år ago | 0 answers | 0

0

answers

Answered
Using impixel with an image sequence
Hi, I'm not expert with |implay| function and its working, but "point and click" makes me think to the |ginput| function: ...

nästan 8 år ago | 0

| accepted

Answered
Montage of two Images
Hi, if you need only to display the two images side by side you can use |subplot|. Instead, if you need to join the two im...

nästan 8 år ago | 1

| accepted

Question


How is Threshold parameter calculated and expressed in Unsharp Mask?
Hi, I'm trying to understand the |imsharpen| function: https://it.mathworks.com/help/images/ref/imsharpen.html I would ...

nästan 8 år ago | 0 answers | 1

0

answers

Answered
Im using a code to calculate when a satellite re-enters the atmosphere. I need the code to stop running after the satellites altitude goes below 100km. Is there a function i can use to do this?
Maybe the _return_ function: https://it.mathworks.com/help/matlab/ref/return.html if altitude < 100 return end

nästan 8 år ago | 0

Answered
How can I create a matrix from the values of a For loop?
Hi, I'm not sure, but I think you can try this (I refer to the first version of code that you wrote): matrix = []; fo...

nästan 8 år ago | 0

Question


How to change the color of the markers when plot features over an image?
Hi, as in the subject, is it possible to change the color of the markers when you plot features over an image? Example: if...

nästan 8 år ago | 1 answer | 0

1

answer

Question


How to use the Computer Vision System Toolbox OpenCV Interface?
Hi, I've download the OpenCV 3.1.0 and correctly installed the Computer Vision System Toolbox OpenCV Interface. I followed th...

ungefär 8 år ago | 1 answer | 0

1

answer

Answered
How to use str2double without rounding
Hi, maybe you need a proper set of the output display format: https://it.mathworks.com/help/matlab/ref/format.html The ...

ungefär 8 år ago | 0

| accepted

Answered
Call elements for a cell array
Hi, I think the following example could be a basic help, is it useful for you? % 3x1 cell building (example) cellar...

ungefär 8 år ago | 0

Question


Warning using bwareafilt: "Some objects were not selected"
Hi, I'm using the function bwareafilt to select the twelve largest objects on a binary image. Sometimes, this warning occurs:...

ungefär 8 år ago | 1 answer | 0

1

answer

Question


Compatibility of Halcon Wrapper and OpenCV Interface
Hi, I'm interested in using the Halcon Wrapper: https://it.mathworks.com/matlabcentral/fileexchange/46524-mvtec-halcon-wra...

ungefär 8 år ago | 1 answer | 0

1

answer

Question


How to perform xcorr2 only in one direction?
Hi, I'm working on two images having the same dimensions. They don't require to be aligned vertically, but only horizontally....

mer än 8 år ago | 1 answer | 0

1

answer

Question


In images aligning, how to exclude some areas from xcorr2 execution?
Hi, I'm trying to align two images using the procedure described into the "Align Two Images Using Cross-Correlation" example,...

mer än 8 år ago | 0 answers | 0

0

answers

Question


How to add an array in a structure as a new field?
Hi, I'm using the following code to get a structure variable _stats_, that will have 23 + 1 = 24 fields. stats = regionp...

mer än 8 år ago | 1 answer | 0

1

answer

Question


How can I find the Sensitivity Factor of the Harris Corner Detector?
Hi, I'm using the _detectHarrisFeatures_ function. To learn about it, I've found this page: http://it.mathworks.com/help/v...

mer än 8 år ago | 1 answer | 0

1

answer

Question


How to visualize MajorAxisLength and MinorAxisLength on images?
Hi, I would like to replicate something similar to that shown in the explanation of "Orientation" property of the "regionprop...

mer än 8 år ago | 1 answer | 0

1

answer

Answered
How do I merge multiple bounding boxes that overlap into one bigger bounding box?
Hi, this example proposes a method to merge boxes, using "accumarray": http://it.mathworks.com/help/vision/examples/automa...

mer än 8 år ago | 1

Answered
use bwconncomp for large sparse matrices
Hi, I think the example in the documentation may be what you are looking for. Please, find the "Calculate Centroids of 3-D Ob...

mer än 8 år ago | 0

Answered
Qn regarding Matlab Montage
Hi, yes, it is possible. This is just a basic example: mont(:,1:500) = I1; mont(:,550:1049) = I2; mont(550:1049,1:500...

mer än 8 år ago | 1

| accepted

Answered
3D animation of imported data
Hi, I'm not able to answer your question, I'm writing just for a suggestion. I never used the "drawnow" function, but I know ...

mer än 8 år ago | 0

Question


How to apply a different b/w threshold to each row of the image?
Hi, I would convert an image from grayscale to black-and-white using the im2bw function, and I need to apply a different thre...

mer än 8 år ago | 2 answers | 0

2

answers

Answered
How do I create a minimum bounding box from locations in cornerPoints object?
Hi, I think this code should be ok for you: x_coordinates = strong.Location(:,1); y_coordinates = strong.Location(:,2);...

mer än 8 år ago | 0

Answered
How to create a Matrice from a structure
Hi, if "meanValues" is a single value and you return a 2d matrix from it, I think that if "values" is an array you should ret...

mer än 8 år ago | 1

Answered
while converting a gray scale image to tif file for edge detection ;it is showing that the dimension of tif file has changed .how can i make a tif file to 2d image
Hi, try with "rgb2gray": http://it.mathworks.com/help/matlab/ref/rgb2gray.html Example for your case: colormap(gray...

mer än 8 år ago | 0

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