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Agustin


Purdue University

Active since 2015

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How can I set up the axis values in a plot?
Hi! I'm working with some signal plots and I want to see how I can set up the axes so I can have a better view of the plots. For...

ungefär 7 år ago | 1 answer | 0

1

answer

Question


How can I plot subplots on the same size?
Hi! I'm trying to plot a figure that can show both the interferogram and coherence of radar images and I did the following: ...

ungefär 7 år ago | 0 answers | 0

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answers

Question


How can I display the date on a plot?
Hi! I'm working on a plot to show the displacements of a point at different times and I got the following: <</matlabcentral/...

ungefär 7 år ago | 1 answer | 0

1

answer

Question


Is there a faster way to load large structures?
Hi! I have saved a data structure that contains 1104 radar images with the focusing parameters, date and time for each image. Wh...

mer än 7 år ago | 1 answer | 0

1

answer

Question


How can I insert 2 figures in one figure?
Hi! I'm working with radar images and I'm getting the interferogram and the coherence from each pair of images. I want to show t...

mer än 7 år ago | 2 answers | 0

2

answers

Question


How can I find the index of a point in an array?
Hi! I have the following point: tmp = [-119.3 1042.5] and I want the index of this point in a grid. I have two separate grids, x...

mer än 7 år ago | 1 answer | 0

1

answer

Answered
How to read date and time of a file?
I created a structure to have a list of the focusing parameters I need from the data and in those parameters, the filename is st...

mer än 7 år ago | 0

Question


How to read date and time of a file?
Hi! I'm working to plot the displacement time series of a point but I need the time info of each file. The date and time is on t...

mer än 7 år ago | 2 answers | 0

2

answers

Question


Using the unwrap command
Hi! I'm working with a Radar image and I want to unwrap the interferometric phase of the image. I'm using the unwrap command...

mer än 7 år ago | 2 answers | 0

2

answers

Question


How to save variables as 16-bit signed integers?
Hi! I have a _dct_blk_ array and I need to save it as a 16-bit signed integers. I did the following: A = dct_blk'; f...

mer än 7 år ago | 0 answers | 0

0

answers

Question


How to move a 7x7 window around image?
Hi! I'm having a hard time with this. I need to evaluate each pixel on a image using a 7x7 window, where the pixel to be evaluat...

mer än 7 år ago | 1 answer | 0

1

answer

Question


How can I move a 7x7 filter around an image?
So I have an estimated filter, theta, to apply it to a blurred image. For each pixel on the image I have to do the following: ...

mer än 7 år ago | 1 answer | 0

1

answer

Question


How to store values in a array from a loop?
Hi; I have the following code: Y = imread('img14g.tif'); X = imread('img14bl.tif'); Samples_Y = Y(1:20:512, 1:20:768)...

mer än 7 år ago | 1 answer | 0

1

answer

Question


How can I select a specific region of a color diagram?
Hi; I have a gamma-corrected RGB matrix, obtained by computing the chromaticity matrices to the RGB 709 transformation matr...

mer än 7 år ago | 0 answers | 0

0

answers

Question


How can I get and read data files from a folder?
I'm working on some data files to process radar images for analysis but I'm having issues with getting and reading the files. Wi...

mer än 7 år ago | 1 answer | 0

1

answer

Question


How can I display a complex image matrix in Matlab?
Hi, I have two complex image matrices of size 1001 x 1001 and I want to display them in Matlab. I tried using the image() and im...

nästan 8 år ago | 3 answers | 1

3

answers

Question


How to plot the frequency response of a Discrete Fourier transform on a specific region?
Hi. I need to analyze and implement a simple low pass filter given by the 9x9 point spread function h(m,n), where h(m,n) = 1/81 ...

nästan 8 år ago | 0 answers | 0

0

answers

Question


How to load a .dat file?
I'm trying to load a time series data file in Matlab but the importdata command is not working on this type of file. It only giv...

ungefär 8 år ago | 2 answers | 0

2

answers

Question


How to get to compute the standard deviation of a multispectral vector?
I have a vector that have the size of 598 x 598 x 7, where 7 is the number of bands. I need to perform some training data to wor...

mer än 8 år ago | 0 answers | 0

0

answers

Question


How can I get the training data from a Landsat Image?
I need to do classification using the knnclassify command but I am confused with creating the training matrix. I have the follow...

mer än 8 år ago | 0 answers | 0

0

answers

Question


Kullback-Leiber Distance
Hi, I have two mean vectors: M1 = [1;0], M2 = [0;1] and covariance matrices: C1 = [1 0; 0 2], C2 = [2 0; 0 3] ...

mer än 8 år ago | 0 answers | 0

0

answers

Question


How to plot the sample mean in a scatter plot?
Hi; Yesterday I had a question about the gscatter command and with the help I got here, I got the results that I wanted: ...

nästan 9 år ago | 1 answer | 0

1

answer

Question


Question about the legend command
Hi, I am working on the following code to plot three different classes: % a - Plot the data in a two-dimensional vector spa...

nästan 9 år ago | 3 answers | 0

3

answers

Question


How can I have precise coordinates
I am working with a LiDAR point cloud data and I developed a code to get each individual strip. I developed the following code. ...

nästan 9 år ago | 1 answer | 0

1

answer

Question


Dealing with LiDAR Intensity data
I am trying to perform Radiometric Normalization for LiDAR Intensity Data but I am very confused on how to plot the subhistogram...

nästan 9 år ago | 0 answers | 0

0

answers