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# KaMu

### University of Victoria

Last seen: 4 maanden ago Active since 2012

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Question

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...

ongeveer 8 jaar ago | 1 answer | 0

### 1

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...

meer dan 8 jaar ago | 1 answer | 0

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Using Principle Component Analysis (PCA) in classification

meer dan 8 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 8 jaar ago | 0 answers | 0

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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 8 jaar ago | 1 answer | 0

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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. ...

ongeveer 9 jaar ago | 1 answer | 1

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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 ...

ongeveer 9 jaar ago | 2 answers | 0

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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...

ongeveer 9 jaar ago | 1 answer | 0

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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...

ongeveer 9 jaar ago | 0 answers | 0

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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...

ongeveer 9 jaar ago | 0 answers | 0

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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 ...

ongeveer 9 jaar ago | 1 answer | 0

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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...

ongeveer 9 jaar ago | 0 answers | 0

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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 ...

meer dan 9 jaar ago | 1 answer | 0

### 1

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 9 jaar ago | 0 answers | 0

### 0

Question

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

bijna 11 jaar ago | 0 answers | 0

### 0

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.

bijna 11 jaar ago | 0 answers | 1

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Question

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

bijna 11 jaar ago | 1 answer | 0