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Emmanuel


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Active since 2014

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How can I parallelize a script full of functions for faster implementation?
I have the following script: %A loop will come herethat reads the variable "name" name = 'RD 771Jun03' %% Ext...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question


Unable to make parpool work
I have 6 scripts that save images in different directories. I am not able to make parpool work or actually, maybe I don't unders...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question


How capture movie of an entire figure consisting of multiple subplot?
I have a figure with 8 subplots( 4 rows, 2 columns). The figure containing subplots loops through 10 times and I want to record ...

meer dan 7 jaar ago | 0 answers | 0

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answers

Question


Unable to read from text file
My textfile(sample pasted below) contains sequence of numbers. Below is my snippet of code to read it: jointA...

meer dan 7 jaar ago | 0 answers | 0

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answers

Question


What would be the best way to parse a text file that contains python dictionary?
I have a text file that contains the following dictionary. I want to plot a bar graph of these values against given keys. # ...

meer dan 7 jaar ago | 2 answers | 0

2

answers

Question


How do I Plot images in two different figures
In this snippet below, I want subplot 1 and 2 as a part of the same figure, which is something I am to get. I need a separate pl...

meer dan 7 jaar ago | 2 answers | 0

2

answers

Answered
How do I extract number from file name?
So, this works: if A is 1443242345.88.png A = A(1:end-4) At = str2num(A) gives numeric value of A which is 144324234...

meer dan 7 jaar ago | 0

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Question


How do I extract number from file name?
My file names are like 1443242345.88.png,1232342.45.png. I want these numbers of the file name and extract them as integers li...

meer dan 7 jaar ago | 2 answers | 0

2

answers

Question


How to concatenate matrix row wise to get a column vector
I have a matrix A = [1,2,3,4 5,6,7,8 9,10,11,12] How do I make it into a column vector by concatenating...

ongeveer 8 jaar ago | 2 answers | 1

2

answers

Question


How to multiply values to specific elements in a matrix?
I have a matrix A=[ 1 0 0 0; 0 1 0 0; 1 0 0 0; ...

ongeveer 8 jaar ago | 2 answers | 0

2

answers

Question


How to subtract vectors of different length(Euclidean distance)
I am trying to find euclidean distance between a vector C = [11,2;13,44;5,6] for every center C= [2,4;3,7]. Here I need to co...

ongeveer 8 jaar ago | 0 answers | 0

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answers

Question


Is there a priority queue in matlab? I am writing a Djikstra algorithm which is slower. Would like to use a queue to make the code run faster.
I am trying to write a Djikstra's algorithm. But it takes for ever to run for 1000x1000 matrix. I was wondering if there were an...

ongeveer 8 jaar ago | 1 answer | 0

1

answer

Question


How do I vectorize this code below?
if(y+1 <= length(B)) if(sum(ismember(closed(:,1:2),[x,y+1],'rows'))== 0) cost = hMap(x,y)+ B(x,y+...

ongeveer 8 jaar ago | 0 answers | 0

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answers

Question


How can I remove redundant rows in matrix with respect two just first three columns?
A= [1,1,4,5,6; 2,7,4,5,7; 1,1,4,2,3;] I want the matrix to remove redundant elements based...

ongeveer 8 jaar ago | 1 answer | 0

1

answer

Question


How to compare an array with 2D matrix?
If I have an array A= [1,2] and matrix B= [3,4;8,6;1,2], How can I say that array A is present in B?

ongeveer 8 jaar ago | 2 answers | 0

2

answers

Question


I have a 1000X1000 matrix in a .txt. How do I parse it into a matrix in matlab?
My code here doesn't work. Attached in this image below is a example of 2X1000 matrix from a .txt file. I need to parse 1000X10...

ongeveer 8 jaar ago | 1 answer | 0

1

answer

Question


How to R,G and B channels of an image? These 3 separate images are at an offset
Given R, G and B channel of an image, at an offset, how do you align it to form an image?

bijna 9 jaar ago | 2 answers | 0

2

answers

Question


Does Vision.Cascade object detector detect only face ?
I want to detect bananas using vision.cascade object detector. Is that possible?

bijna 9 jaar ago | 1 answer | 1

1

answer

Question


How do we implement ORB feature detector in matlab?
I want to implement ORB for feature matching between a set of images

ongeveer 9 jaar ago | 1 answer | 2

1

answer

Question


Is there a matlab function to implement gradient descent optimization to images?
How can I apply block-matching for images using gradient descent optimization?

ongeveer 10 jaar ago | 1 answer | 0

1

answer

Question


How to run a gradient descent optimization for image registration?
I am having two images where second image is a translated image of the first. I am choosing a random 8x8 block from the first im...

ongeveer 10 jaar ago | 0 answers | 0

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answers

Question


Difference between two blocks of images?
How can I extract a block of pixels from an image and subtract it with another block of different image to find minimum disparit...

ongeveer 10 jaar ago | 0 answers | 0

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answers

Question


How compare pixels from two images to find a match?
I am having two images where second image is the warped image of previous one. Using random generator , I am selecting 8x8 pixel...

ongeveer 10 jaar ago | 4 answers | 0

4

answers

Question


How do we select block of pixels by random function?
I would like to run a "block matching" algorithm by selecting random blocks of pixels. How can I select these blocks randomly? ...

ongeveer 10 jaar ago | 0 answers | 0

0

answers

Question


Which function in Optimization tool box should I use for implementing Sum of Squared Difference(Unconstrained)?
I am having two images, where second image is the warped image of first one,. 1. How do I use optimization toolbox to impleme...

ongeveer 10 jaar ago | 0 answers | 0

0

answers

Question


Help regarding optimization tool box for image processing?
Hello I have two images a and b, where b is a rotated and translated image of a. Using Sum of Squared Difference method, I have...

ongeveer 10 jaar ago | 1 answer | 1

1

answer

Question


Interpolation techniques available in matlab?
What are the interpolation techniques available in matlab?

ongeveer 10 jaar ago | 2 answers | 0

2

answers

Question


What do the words ParseInput and Varagin mean ?
What does parse input and varagin mean in matlab?

ongeveer 10 jaar ago | 2 answers | 0

2

answers

Question


Kindly review my program for block matching ? How do I overcome its constraints?
Hello all! Below is the code for block matching of two imags al and br(which is a sub-image of al). I divided al into 4 blocks, ...

ongeveer 10 jaar ago | 1 answer | 0

1

answer

Question


How can I implement block search in this program?
Hello all! I wanted to compare image al , with another image b, which is a block of image form the previous image al. I tried s...

ongeveer 10 jaar ago | 1 answer | 0

1

answer

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