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yonatan gerufi


Pebbles interfaces

Aktiv seit 2014

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Professional Interests: image processing, data anaylsis

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Frage


matlab crashes when running code on ~600 images
Hi, i want to remove duplicate images from my portable hardDisk (win 7, 64 bit) i have ~ 650 images, and i don't care abo...

etwa 10 Jahre vor | 2 Antworten | 0

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Antworten

Beantwortet
How to find X and O using Image Processing toolbox?
if the X and O have fixed dimension and shape, is to build a mask for X and mask for O, and run it on the picture.

fast 11 Jahre vor | 0

Beantwortet
how to add one space to a matrix ?
see in the "file exchange" : <http://www.mathworks.com/matlabcentral/fileexchange/36766-strpad-string-pad-for-matlab STRPAD S...

fast 11 Jahre vor | 0

Beantwortet
number divided by vector
that's a good question, i believe both needs to be illegal. how do you suggest matlab will understand the command: ...

fast 11 Jahre vor | 0

Beantwortet
number divided by vector
This is a tricky thing. *a.* the command: 10/ [10,20]' is equal (from matlab point of view) to: [10;0]/ [10;20...

fast 11 Jahre vor | 0

Beantwortet
odd-even transposition Algorithm
if your array is called "arr", simple code that will do the work is: odd =mod(arr,2); odd_arr = arr.*odd; odd_arr(odd...

etwa 11 Jahre vor | 0

Beantwortet
Subscript indices must either be real positive integers or logicals.
your example is very hard to understand. you should use debug to catch the error. try this method: try your code....

etwa 11 Jahre vor | 0

Beantwortet
Error using * Matrix dimensions must agree. please help.
well, your line: Wu(:,:,j)=Wu(:,:,j)+BF*DBF(j,:)*g2*g2'*DBF'; is totally messed up with dimension. think what dimen...

etwa 11 Jahre vor | 1

Beantwortet
matlab is getting slow when I am trying to read an image using imread() ?
use memory before and after doing: clear all. and see the difference. that's suppose to accelerate your spe...

etwa 11 Jahre vor | 0

Frage


find specific parameter in multiple m-files
Hi all, I want to find the location of specific parameter in multiple m-files. e.g i have 50 matlab files (*.m), and i ...

etwa 11 Jahre vor | 1 Antwort | 3

1

Antwort

Beantwortet
Preallocating zeros in cell array. and Which one is faster? 3D matrix, cell or structure data?
Hi Masha, first of all, regarding to code execution time see " *profiler* ". it's a matlab feature that analyze the runnin...

etwa 11 Jahre vor | 0

Beantwortet
How to write a function and create 3 nested loop then evaluate an integral?
for 3 dim integral use: integral3

etwa 11 Jahre vor | 0

Beantwortet
Why is MATLAB running slow? 2013a vs 2011a
there are many reason this could happen. any other programs are running? try memory to see how much matlab use, a...

etwa 11 Jahre vor | 0

Beantwortet
learning functions, need help
I highly recommend reading how functions works in Matlab. for your question, this: function [out1,out2] = MyAdder(a,b) ...

etwa 11 Jahre vor | 0

Beantwortet
Can anyone please help me correct the error in this program for generating a binary image from rgb image?
if you have image processing toolbox you can use " _im2bw_ " function.

etwa 11 Jahre vor | 0

Beantwortet
How to identify a specific location within a matrix based on a value
possible solution: % construct random binary matrix a=round(rand(5,10)); % find first minimal value: [value,po...

etwa 11 Jahre vor | 0

| akzeptiert

Beantwortet
how to see the script of step(ha,fc,ang) function?
as far as i know, you can't access Matlab functions except the functions in your toolbox. those access can be viewed with ...

etwa 11 Jahre vor | 0

Beantwortet
find values of indexes
hopfully this will answer your question, The functions min & max give you back: [value, position] you can use it to ...

etwa 11 Jahre vor | 0

Beantwortet
Convert an RGB image to grayscale but keep one color?
Hi, there are several ways to do it, i find it easy to do: red_color = A(:,:,1); green_color = A(:,:,2); blue_c...

etwa 11 Jahre vor | 0

Beantwortet
Standard deviation: error because variable is of type double
Hi Anna, you can use std2(matrix) mean2(matrix) functions instead. your code did work for me, v = randn(...

etwa 11 Jahre vor | 0

| akzeptiert

Beantwortet
How can i make sure that using imfindcircles will result in non-overlap circles?
Hi Asnida, Use "Circles overlap remover" function (see on file exchange <http://www.mathworks.com/matlabcentral/fileexchange/42...

etwa 11 Jahre vor | 0

Beantwortet
How to extract the value pixel values from an image or masked image?
Hi Dhanya, you can access to a specific pixel by typing : _figure_name(x_pos,y_pos)_ . In the MATLAB workspace, most im...

etwa 11 Jahre vor | 0

Gelöst


Scoring for oriented dominoes
Given a list of ordered pairs, and the order they should be placed in a line, find the sum of the absolute values of the differe...

etwa 11 Jahre vor

Gelöst


Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

etwa 11 Jahre vor

Gelöst


Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

etwa 11 Jahre vor

Gelöst


Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

etwa 11 Jahre vor

Gelöst


Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

etwa 11 Jahre vor

Gelöst


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

etwa 11 Jahre vor

Gelöst


Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

etwa 11 Jahre vor

Gelöst


Add two numbers
Given a and b, return the sum a+b in c.

etwa 11 Jahre vor

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