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David


Actif depuis 2011

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Question


instantaneous phase angle plots?
Hello, I'm struggling with this last part of an instantaneous phase angle plots. I know how to get the phase angle yh=hi...

plus de 7 ans il y a | 1 réponse | 0

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réponse

Réponse apportée
Record timing of user input
wow that was very fast. thank you guys very much!!! this worked immediately.

plus de 10 ans il y a | 0

Question


Record timing of user input
Hello and thank you for reading my question, I'm trying to display images and record the timing (and keyboard value if pos...

plus de 10 ans il y a | 3 réponses | 0

3

réponses

Réponse apportée
instantaneous phase angle plots?
ack! i just had to zscore normalize my signal! thankyou

plus de 10 ans il y a | 0

| A accepté

Question


Lab vs RGB vs HSV color spaces for color detection?
I'm having trouble understanding why there exist multiple color spaces. That is, informatically, all three spaces have the same ...

presque 11 ans il y a | 1 réponse | 0

1

réponse

Question


how do I make a color (rgb) image look grayish?
how do I make a color (rgb) image look grayish? not grayscale per se, but iteratively "washout" the color? I basically want to m...

environ 11 ans il y a | 2 réponses | 0

2

réponses

Question


Real-time video capture with frame by frame comparsion
Hello, I would like to capture video using a computer camera (usb) and compare consecutive frames (i.e. get diff). I got the ...

plus de 11 ans il y a | 1 réponse | 0

1

réponse

Question


Using PPM (Prediction with partial match) for predicting next symbol in sequence.
I'm trying to under the use of the PPM (Prediction with partial match) algorithm to predict the next symbol in a sequence of sym...

plus de 11 ans il y a | 1 réponse | 0

0

réponse

Question


Warp just a subset of a plot
Hello, I'm trying to warp and move around aspects of a plot. I'm using Doug's George body figure. http://blogs.mathwork...

plus de 11 ans il y a | 1 réponse | 0

1

réponse

Question


maximal subset N of binary matrix
Hello, i have a 200x200 symmetric binary matrix that's relatively sparse. I want to choose a subset N of rows with their matchi...

plus de 11 ans il y a | 2 réponses | 0

2

réponses

Réponse apportée
rotation about a point
i found my error and here's the solution. thanks again for all your help! clf xx = 0 yy = -0.7 t = pi/4; A = [cos(t) ...

plus de 13 ans il y a | 0

| A accepté

Question


rotation about a point
hello community, I'm slowly losing my mind trying to do something rather simple. I would like to rotate set of 2-d points ab...

plus de 13 ans il y a | 3 réponses | 0

3

réponses