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Actif depuis 2013

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How can I determine some pixels in an Image?
Hello I have code bellow to determine pixles' S on I. but I have an image that this code didn't code on it and I can't see S ...

plus de 10 ans il y a | 1 réponse | 0

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Question

How can I calculate Gradient of Image?
Hello Could you help me How can I calculate Gradient of an Image? what kinds of gradient does we have? Tahnks

plus de 10 ans il y a | 1 réponse | 0

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Question

How can I merge two Image?
Hello I want to merge two Image in one Image so that odd rows of image fill one of them and even row of image fill with anot...

plus de 10 ans il y a | 2 réponses | 0

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réponses

Question

How can I fill a vector with another one with different size?
Hello I want to fill a vector with another vector with different size. like bellow example, that "fullPath" is 201*1 and "xp...

plus de 10 ans il y a | 2 réponses | 0

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Question

improve performance of if statment
Hello I have bellow statement if ((fullPath(i-1)-1) > y) col1=y ; else ...

plus de 10 ans il y a | 1 réponse | 0

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réponse

Question

spilit an image into two image
Hello I have imageA, right now I want to have two image (Image B and Image C) from Image A. so that odd rows of Image A ...

plus de 10 ans il y a | 1 réponse | 0

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réponse

Question

How can I downsample an image?
Hello I want to downsample an image and I want to replace one pixel in new Image with average of four pixel in first image. ...

plus de 10 ans il y a | 1 réponse | 0

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réponse

Question

How can I Remove a Column and add it again?
Hello I want to remove first column from an Image and do some thing on Image and then add that column again. I want to remov...

plus de 10 ans il y a | 1 réponse | 0

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Question

How can I compare all row in a column with a value and replace it?
Hello I want to compare all row in one column with a value, and if one of them being larger than value, I want replace it wi...

plus de 10 ans il y a | 1 réponse | 0

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Question

can I use elements of array in if statement directly?
Hello I have an array (it's name is fullpath) and I want to compare the elements of it in If condition like bellow ...

plus de 10 ans il y a | 1 réponse | 0

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réponse

Question

How tic/toc calculate execution time?
Hello I have a function that call several functions like bellow function A() { tic function B(); function C();...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

Indexing cannot yield multiple results
Hello I use size function on image 466*700*3 unit8 . [xm ym zm]=size(Main); but I see this error Indexing cannot y...

presque 11 ans il y a | 2 réponses | 0

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réponses

Question

How Can I use a string value as a parameter name?
Hello How Can I use a string value as a parameter name? I have a function that return a string value, I want to use this f...

presque 11 ans il y a | 2 réponses | 0

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Question

mapping numbers to another number
Hello I want to map numbers 1,2,3,4,5,6,7,8,9 to 11,12,13,21,22,23,31,32,33. for example if I have number '1' I get '11' ...

presque 11 ans il y a | 5 réponses | 0

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réponses

Question

How can I access part of my stucture by index?
Hello I have a structure like bellow x.part1.vector=3; x.part1.cost=4; x.part2.vector=5; x.part2.cost=6; ...

presque 11 ans il y a | 2 réponses | 0

2

réponses

Question

using Parfor instead of for
Hello I have a vector with n rows and one column. every other row is empty and I want to fill them base on its up row and...

presque 11 ans il y a | 1 réponse | 0

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réponse

Question

Can I run for loop in command window?
Hello I have for loop with switch case in code , my code is here. if true for i=3:2:length(vx) switch vx(i...

environ 11 ans il y a | 1 réponse | 0

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réponse

Question

finding index of min value in a matrix
Hello I have a matrix and I want to compare three element of this matrix and find min between them and then I want to know t...

environ 11 ans il y a | 2 réponses | 0

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réponses

Question

How can I find column number of a specific element in matrix?
I want to compare three element in a matrix and find minimum between them. then I want to know the column number of minimum ele...

environ 11 ans il y a | 1 réponse | 0

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réponse

Question

How can I find min between three value in matlab?
Hello I have three number, Could you help me how can I find min of them in fast way? thanks

environ 11 ans il y a | 1 réponse | 0

1

réponse

Question

imwrite function and permission error
I read any question and answer about my problem, but I couldn't find my solution. I checked read only about my folder. I use mk...

plus de 11 ans il y a | 2 réponses | 0

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Question

How can I select a random element in a row of matrix?
Hello I want to select a a random element in a row and then I want to know the column of this element Could you Help me?...

plus de 11 ans il y a | 2 réponses | 0

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réponses

Question

How can I fill empty elements in a vector to preserve conjunction ?
HEllo I have a vector for example with 10 rows and one column(10*1). The elemets of my vector every other row are empty. l...

plus de 11 ans il y a | 1 réponse | 0

1

réponse

Question

How can I find a connected path on a matrix by Random Search?
Hello I have a matrix . I want to find a connected path of elements from up to button. I want to do it by random search. As ...

plus de 11 ans il y a | 2 réponses | 0

2

réponses

Question

Can I sort Find function base on rows?
Hello I use find function to find location of a vector on my Image, It works, but I have location Order by column.I mean at f...

presque 12 ans il y a | 2 réponses | 0

2

réponses

Question

Can I fill empty pixels in a vector?
Hello I try to explain my question better. I have an image in size of 466*700 and I have a vector on this image in size of ...

presque 12 ans il y a | 1 réponse | 0

1

réponse

Question

How can I find number of column on an Image?
Hello I have an image and a vector on it, could you help me How can I find numbers of column that this vector goes from them?...

presque 12 ans il y a | 1 réponse | 0

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Question

How can I set the value of Extrapval in interp2?
I use interp2 to resample my image, but i have non value in my resampled image, I should set extrapval in interp2 but I don't kn...

environ 12 ans il y a | 1 réponse | 0

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Question

why I have Nan value in resampling image?
Hello I use a resampling on an image like below NI = imresample([0.5,0.5],I,[1,1],'linear'); my first image (I) size wa...

environ 12 ans il y a | 3 réponses | 0

3

réponses

Question

Can I undo Interp2 function?
I use code bellow to resample my Image for i=1:z nimg(:,:,i) = interp2(Ox,Oy,img(:,:,i),Nx,Ny,intmethod); ...

environ 12 ans il y a | 3 réponses | 0

3

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