KaMu

University of Victoria

Last seen: ongeveer 3 jaar ago | Active since 2012

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Determining range of fire colours on RGB space
Hi all, I am developing a code that detects fire from images. I need to build a ground truth that define the range of fire colo...

bijna 11 jaar ago | 1 answer | 0

1

answer

Question

Simple question: determine the angle of the optical flow vector
Hi, I have simple question, I am using Horn-Schunck to compute motion using optical flow, using the computer vision tool box. I...

ongeveer 11 jaar ago | 1 answer | 0

1

answer

Answered
Using Principle Component Analysis (PCA) in classification
I keep received emails that some one answer my question but I can't see any answers!

meer dan 11 jaar ago | 0

Question

Principal component Analysis example on Matlab
I think there is something wrong here. I am applying the PCA through the statistical tool. I have a data XData that range from 1...

meer dan 11 jaar ago | 1 answer | 0

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answer

Question

Using Principle Component Analysis (PCA) in classification
Hi All, I am working in a project that classify certain texture images. I will be using Gaussian Mixture model to classify all ...

meer dan 11 jaar ago | 1 answer | 0

1

answer

Question

Read Images by date created, not my name
Hello, is it possible in Matlab to read images by date created? I cant use foor loop as its hard to predict the images names. ...

bijna 12 jaar ago | 1 answer | 1

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answer

Question

pixel position and its value
I have a grayscale image,with four double values 0.25, 0.75 1 and 0. I need to plot the X-axis co-ordination for each pixel ...

bijna 12 jaar ago | 2 answers | 0

2

answers

Question

Undefined function 'imgradientxy' for input arguments of type 'uint8'.
Hello, I am trying simple example for imgradient: I=imread('Gray.png'); [Gx, Gy] = imgradientxy(I); [Gmag, Gdir] = i...

bijna 12 jaar ago | 1 answer | 0

1

answer

Question

Fitting data using Gaussian
I already asked this question before but I am trying to simplify it here. If I have a dataset that I have already fitted it usin...

bijna 12 jaar ago | 0 answers | 0

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answers

Question

Fitting data using Gaussian Mixture Model (GMM)
I am fitting multiple GMM models on my 3D data sets, it works well.But now I have a new data that I want to check if they are in...

bijna 12 jaar ago | 0 answers | 0

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answers

Question

Returning matrix value back from Single-Indexing-colon matrix
If I have a matrix 3X5: A = 1 2 3 4 5 4 3 2 1 5 7 5 3 2 5 ...

bijna 12 jaar ago | 1 answer | 0

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answer

Question

Fitting model with Gaussian mixture model
I have used the Gaussian mixture model ' gmdistribution' to fit my data. I have get the results : 100 iterations, log-likelihoo...

bijna 12 jaar ago | 0 answers | 0

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answers

Question

How to compute the RGB Pixel frequency that represents the colour in whole channels.
Hello Matlab experts, To compute pixels frequency on RGB image, we usually use histogram on each individual channel. Here my ...

bijna 12 jaar ago | 1 answer | 0

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answer

Question

Optical Flow in Computer Vision tool box
In the vision.optical flow, How can I plot the vector direction. Quiver draw the vector into image and i have video player. It a...

meer dan 12 jaar ago | 0 answers | 0

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answers

Question

Quiver function
Hello, How does quiver plot the arrows from u and v?

meer dan 13 jaar ago | 1 answer | 0

1

answer

Question

quiver AND the video player
Can we draw arrows using Quiver on the movie player? I would like to see motion while the video playing.

meer dan 13 jaar ago | 0 answers | 1

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answers

Question

Computer Vision System Toolbox license
For several time i had this message: Reported by vision.VideoFileReader: Unable to checkout a license for the Computer Vision ...

meer dan 13 jaar ago | 1 answer | 0

1

answer

Question

Histogram part of data in matrix
Hello, I would like to see a histogram of a data that stored in 2d matrix that is >0.1. how can I do that? For example in matr...

meer dan 13 jaar ago | 1 answer | 0

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answer