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yonatan gerufi


Pebbles interfaces

Attivo dal 2014

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Professional Interests: image processing, data anaylsis

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Domanda


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...

quasi 9 anni fa | 2 risposte | 0

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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.

oltre 9 anni fa | 0

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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...

oltre 9 anni fa | 0

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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: ...

oltre 9 anni fa | 0

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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...

oltre 9 anni fa | 0

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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...

oltre 9 anni fa | 0

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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....

oltre 9 anni fa | 0

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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...

oltre 9 anni fa | 1

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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...

oltre 9 anni fa | 0

Domanda


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 ...

oltre 9 anni fa | 1 risposta | 3

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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...

quasi 10 anni fa | 0

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

quasi 10 anni fa | 0

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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...

quasi 10 anni fa | 0

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

quasi 10 anni fa | 0

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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.

quasi 10 anni fa | 0

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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...

quasi 10 anni fa | 0

| accettato

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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 ...

quasi 10 anni fa | 0

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

quasi 10 anni fa | 0

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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...

quasi 10 anni fa | 0

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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(...

quasi 10 anni fa | 0

| accettato

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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...

quasi 10 anni fa | 0

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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...

quasi 10 anni fa | 0

Domanda


using math operation as string in array on an expression
Hi all, i need to do some math operation on elements in certain order, as: 3+4, 3-4, 3*4, 3/4, 3^4 i thought usin...

circa 10 anni fa | 1 risposta | 0

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Domanda


compiled standalone app that controlling instrument (with visa) dosn't work on other PC's
Hi, i have Matlab R2013b with Test&measurement and compiler toolboxes. My code activates an external instruments via visa, ...

oltre 10 anni fa | 2 risposte | 0

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