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Tintumon


Last seen: 3 years ago |  Active since 2017

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Customizing the code generated from the Classification Learner App
I am trying to customize the "Weighted kNN"-based classification code generated after a 10-fold cross validation on my data usin...

3 years ago | 1 answer | 0

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answer

Question


How to vectorize an equation involving pair-wise distance computation, to improve the speed of computation?
Let me explain the situation, first: I have a vector field, where each element has a: 1) 2-D co-ordinate location (x,y) 2) 2...

4 years ago | 1 answer | 0

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answer

Question


How to search for an array inside another array?
E.g: I have the following array: a = [1 1; 1 2; 1 3; 1 4; 1 1; 1 4; 1 5]; I want to search for the occurance of each row of th...

4 years ago | 1 answer | 0

1

answer

Question


Assigning multiple values to a matrix at locations specified by an array of indices?
Consider that i have the following matrix: my_mat = zeros(10,10); To this matrix, I need to assign values (specified by varia...

4 years ago | 1 answer | 0

1

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Question


How to view the index of a line (or set of connected lines) in a plot?
Suppose, I am plotting the following trajectory (connected lines) data: % first trajectory data track(1).x = [1 1 1 2 4 5]; ...

5 years ago | 1 answer | 0

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answer

Question


Is it possible to plot vectors in different colors using a single quiver statement?
Suppose I have the following code: coltab = ([128,0,0; 0,255,0; 0,0,255; 255,255,0; 255,116,140])/255; % I have the above colo...

5 years ago | 0 answers | 0

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answers

Question


How to maintain the same "xticks" and "yticks" for multiple plots?
%% the variable "accuracy" is a 1x60 array containing accuracy values. figure('Position', get(0, 'Screensize')); ...

6 years ago | 1 answer | 0

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answer

Answered
How to extract/obtain motion vectors from .mp4 videos in MATLAB?
Thanks again for a detailed answer. In the case of "VideoReader": 1) What if I had multiple codecs? I guess the routine choo...

7 years ago | 0

Question


How to extract/obtain motion vectors from .mp4 videos in MATLAB?
Hello, Is there any code (or inbuilt function) for extracting motion vectors (frame-to-frame) from MPEG-4 (H.264 compressed vid...

7 years ago | 2 answers | 0

2

answers

Question


How to reduce the number of "for" loops (while implementing an overlapping block-wise processing on an image)?
I have the following code section to *implement overlapping blocks in any square image* (my image size 128*128). For each bloc...

8 years ago | 2 answers | 0

2

answers