Question

find points within a radius of a certain point

Is there any function such as rangesearch but for one point only knowing the max distance (radius ) to find the next point? T...

24 days ago | 0 answers | 0

Question

Is there any way to track multiple particles whos physical properties can be tracked (i.e they are similar from frame to frame)

I have a video of tracking particles that are moving in a frame and I would like to create an output with velocity tracks. I hav...

25 days ago | 0 answers | 0

Question

nearest neighbour search for scattered data

Is there any way to find 10 nearest neighbours for each point in a scattered data set? Basically I would like to do the knn sear...

1 month ago | 1 answer | 0

Question

Finding 4 closest values to a value in an array

How do I find multiple points close to a particular number in an array? I can do this for one value but how do I extend that?

1 month ago | 1 answer | 0

Question

Width of vessels (scattered data points)

Hi, I am trying to get some morphological information about scattered data. I ideally would like the width of each branch. Is...

1 month ago | 0 answers | 0

Question

Creating pairs using prior information

I have a bunch of tracks borne out of random points for example amongst 50 points i have about 4 tracks containing 4 points each...

1 month ago | 0 answers | 0

Question

Direction between points from [0,360]

I have 5 points which has (x,y) position and want to calculate the direction from one point to the other. I used atan2d but the...

1 month ago | 2 answers | 0

Answered

convert a 3d matrix to 3 column vector

Sorry, I should rephrase my question. I have a matrix (magmatf- attached)- lets call the rows as R1 and columns and C1 . I crea...

convert a 3d matrix to 3 column vector

Sorry, I should rephrase my question. I have a matrix (magmatf- attached)- lets call the rows as R1 and columns and C1 . I crea...

1 month ago | 0

Question

convert a 3d matrix to 3 column vector

Hi, I have a matrix with x position as rows, y position as columns and magnitude as data at (x,y). How can I convert this to...

1 month ago | 1 answer | 0

Question

nearest neighbor gaussian blurring for scatter data

I have a N by 3 array where the 3 columns are x position, y position and magnitude. Is there anyw ay to do gaussian blurring usi...

2 months ago | 0 answers | 0

Question

Jet Colormap with black and white at the ends

Is there a way to get the jet colormap to have black at its lowest end and white at its highest end instead of blue and red resp...

2 months ago | 3 answers | 0

Question

continuous representation (image generation) of discrete data set

I have a discrete data set which contains x and y position and velocity. I usually use patch plot to represent this. Is there a ...

2 months ago | 2 answers | 0

Question

Can I do a curve fit tool in a for loop?

How can I get the a1,b1,c1 variables from the curve fit tool box for the gaussian func?

2 months ago | 1 answer | 0

Question

How do I fit gaussian function to data whose only information I have is the minimum, maximum and number of data points?

I have the minimum, maximum and number of data points. How can I fit a gaussian to this?

2 months ago | 2 answers | 0

Question

interpolating matrices between rows

I have the following matrix where the 1st column represents position x and 2nd column represents position y. The third column ...

2 months ago | 2 answers | 0

Question

Is there any way to get a matrix from data set which contains x position, y position and magnitude?

I would like to generate a 2D matrix with rows being x position and y being y position and the matrix should be filled with mag...

2 months ago | 2 answers | 0

Question

How to fill the gaps in a patch plot through adaptive interpolation

I have a 2 dimensional patch plot that looks like this where the colors represent magnitude of flow rate so basically I have x p...

2 months ago | 2 answers | 0

Question

How can I keep overlapping regions that I see in Imfuse and remove everything else in the image?

I used region props and have converted frames in a video binary images. How do I keep only the overlapping regions and remove ev...

4 months ago | 1 answer | 0

Question

How can I get my minimum spanning tree to select only one edge?

for each node, I have many edges how can I make it choose the shortest edge per node?

6 months ago | 1 answer | 0

Question

I have a bunch of points in each frame(they move a certain distance from frame to frame).. is there any way I can correlate these points from frame to frame using their intensity and distance traveled? Can I use pdist2?

N/A

8 months ago | 0 answers | 0

Question

I have many peaks in each frame of a video. Some of these peaks can disappear from FOV sometimes. is there any way I can track their centroids (which I got using using region props) and get their subsequent velocity.

N/A

8 months ago | 1 answer | 0

Question

Correlation of an image with search window

I have multiple peaks in a video and need to track this from frame to frame. How do I do the correlation between these but put a...

8 months ago | 0 answers | 0

Question

Image correlation from frame to frame with a search window

I have multiple peaks in a video and need to track this from frame to frame. How do I do the correlation between these but put a...

8 months ago | 0 answers | 0

Question

How do I adjust the binwidth of histfit while keeping a fixed bin number

I would like to plot the histfit histogram touching each other while reducing the bin width,

9 months ago | 1 answer | 0

Question

background of an image to 0

I have a 2d image( from microscope of cells) and I am trying to quantify intensity of fluoroscence. However i did not take a bac...

1 year ago | 1 answer | 0