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How to find the corresponding x value from a polynomial curve?
interp1 is used to find an Yi-value for a known Xi value if you have a data zet (x,y)=> so it is not usefull to find the maximum...

environ 12 ans il y a | 0

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Displaying the value in cell
gene{1}(1,1) will show the content of the first cell so replace the numbers be the desired position or use : to see a range try...

environ 12 ans il y a | 0

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Question


trying to parametrize code for 'solve' and 'syms' command
Hi, Below I show code for using syms and solve with order 3, but I want to automatically generate also other orders.(like up...

environ 12 ans il y a | 1 réponse | 0

1

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code explanation in image processing
Hi, It gives you all values of a that are higher than threshold a>150 gives a logical (0 or 1) matrix from the same size as a...

environ 12 ans il y a | 0

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Digital signal processing - average fit of periodic signal?
if you do not have the curve fitting toolbox then your approach sounds exceptable to find the average signal , put all values fo...

plus de 12 ans il y a | 0

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how to mark the outline alone of the given input image?
Hi, I think 'Image Analyst' gave a useful answer in http://www.mathworks.nl/matlabcentral/answers/46407-image-edge-to-black ...

plus de 12 ans il y a | 0

Question


Question about the use of "Answers"
Hi, maybe simple questions but, 1) If you comment on a question, that you are interested in, is there an easy way to tra...

plus de 12 ans il y a | 3 réponses | 2

3

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removing objects which have area greater and lesser than some threshold areas and extracting only the objects which have the area in between
Hi, to get properties from areas of blob in the image You have to do labeling first or transfrom to BW images then you c...

plus de 12 ans il y a | 0

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About interp1.m (1D interpolation) function?
Hi, just a suggestion, I had a similar issue with a large data set of measurement where indeed you can have (x,y) and (x,y+dy)...

plus de 12 ans il y a | 1

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Is there a way to dynamically save a plot figure into a jpeg file without having to type the filename i would be saving it into?
Hi, with e.g.: freq=1 time=103 Filename = ['F' num2str(freq) '_h' num2str(time) '.jpg'] =>Filename =F1_h103.jpg then ...

plus de 12 ans il y a | 1

Question


difference between using interp1( X,Y, xi, 'linear', 'extrap') and doing the extrapollation after curve fitting
Hi I know extrapollation are not ideal but I used xi= interp1( X,Y, xi, 'linear', 'extrap') and the results are totally onl...

plus de 12 ans il y a | 1 réponse | 0

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I have a rather large matrix. The data was sampled at 100 Hz. I want to the data to look like it was sampled at 5 Hz
well If I understand it well you have a vector Sample100 with 100 Hz Samples and you want only the sample @ 5 hz Sample5=Sample1...

plus de 12 ans il y a | 0

Question


processor use only 13% when excuting function/script
Hello, I am calculating spread pattern of quite a large amount of projectiles. When I run the full model it take more than ...

plus de 12 ans il y a | 2 réponses | 0

2

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Adding a header to a .txt file
I am not 100% sure what you are trying to do but if you want to write to a text file, that is quite well explained in the help...

plus de 12 ans il y a | 3

Question


Evaluation of a for loop
hello is this pseudo code: for Counter=1:size(M,2) if someting delete row from M end end If wo...

plus de 12 ans il y a | 3 réponses | 1

3

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Question


Error evaluating parameter 'Value' in simulink
Hi, I am using simulink to calculate ballistics flights. Until now a used : [time, state, output]=sim ('ballistic_flight_...

plus de 12 ans il y a | 2 réponses | 1

2

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Question


edge merging
Hello, I am comparing different techniques for extraction grains from an image: one method that I want to test is using edge...

plus de 12 ans il y a | 2 réponses | 1

2

réponses

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Histeq in old version worked with RGB
Ok, that's true, thanks for your interesting input, but I need to compare the results of the results of algorithm with visual ...

plus de 12 ans il y a | 0

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Histeq in old version worked with RGB
well it gave good results in the image we processed (image were completely dark due too low light condition, after histeq I was ...

plus de 12 ans il y a | 0

Question


Histeq in old version worked with RGB
Hi, I am reusing some old code from a research project we did years ago, I used 'ImageEq=histeq(ImageOrg, counts)' Now ...

plus de 12 ans il y a | 3 réponses | 0

3

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Réponse apportée
Multipline plotting
ok, this was stupid of me, tried that solution but forgot to transpose, sorry, THANKS

presque 13 ans il y a | 0

Question


Multipline plotting
Hello, I need to plot over 3000 line segments on a figure, normally I use a loop close all A=[1 2 3 4;2 8 9 10;5 6 7 ...

presque 13 ans il y a | 2 réponses | 0

2

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Question


I have a problem with the output of solve
ello, I tried to solve an equation syms x y; S = solve('x^2 + y^2 = 240^2','x*(s-x)+y*(t-y)-240*sqrt((s-x)^2+(t-y)^2)*0.64...

presque 13 ans il y a | 1 réponse | 0

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