Answered

Inserting excel files from different folders for different processing

Hi, your question looks similar to: http://www.mathworks.com/matlabcentral/newsreader/view_thread/274014 regards,J

Inserting excel files from different folders for different processing

Hi, your question looks similar to: http://www.mathworks.com/matlabcentral/newsreader/view_thread/274014 regards,J

7 years ago | 0

| accepted

Question

The threshold of sobel

Hi, I am trying to find how the sobel threshold is defined: I found : determine the threshold; see page 514 of "D...

7 years ago | 1 answer | 0

Question

How to define color accuracy of an image system

Hi, I am working in image analysis but until now I have very little experience in color measurements. I need to measure the...

7 years ago | 1 answer | 0

Answered

increasing the launch angle of projectile so it reaches a certain distance

Hi, I admint I did not check all your code, but if you want something like: theta= Value; thetaStep= StepValue; ...

increasing the launch angle of projectile so it reaches a certain distance

Hi, I admint I did not check all your code, but if you want something like: theta= Value; thetaStep= StepValue; ...

8 years ago | 0

Question

Title disappears sometimes somtimes not

Hi, I generate a subplot with the code below. Normally that gives me 8 subplots with a title but for some subplots the title d...

8 years ago | 1 answer | 0

Answered

How to calculate the energy of an image and what is the unit of that energy ?

Hi, maybe ths helps: http://www.mathworks.com/matlabcentral/fileexchange/13837-meanstdenergy-of-imagecumulative-gray-level-d...

How to calculate the energy of an image and what is the unit of that energy ?

Hi, maybe ths helps: http://www.mathworks.com/matlabcentral/fileexchange/13837-meanstdenergy-of-imagecumulative-gray-level-d...

8 years ago | 0

Question

Term matrix and regression model formula

hey, am not sure about the way the regression model is formulated in the help file this model is proposed 'MPG ~ Acceleratio...

8 years ago | 0 answers | 0

Answered

What is the problem in these code?

Hi, sum(a(:,:,x) (:,1:2:end),2); is not correct , I think What do you want to do there? '(:,1:2:end)' is referring to the...

What is the problem in these code?

Hi, sum(a(:,:,x) (:,1:2:end),2); is not correct , I think What do you want to do there? '(:,1:2:end)' is referring to the...

8 years ago | 0

Question

Which matlab function can be used to compare spatial distribution grids?

Hi, I have two spatial distributions in a grid, so lets say a 40 x 70 matrix: each grid has the same dimensions e.g. 0.250 m...

8 years ago | 1 answer | 0

Answered

multiple if statements in matlab

Hey, difficult to check it without example values but if I understand it well you are comparing a column vector p to a column...

multiple if statements in matlab

Hey, difficult to check it without example values but if I understand it well you are comparing a column vector p to a column...

8 years ago | 0

| accepted

Answered

How to correct the assignment Error?

Hi, there is a function: imhist(I) , quite useful for this work, + if you want to calculate the hist by summing for each va...

How to correct the assignment Error?

Hi, there is a function: imhist(I) , quite useful for this work, + if you want to calculate the hist by summing for each va...

8 years ago | 0

Answered

Solving homogeneous linear set of equations

seems a similar question: http://www.mathworks.com/matlabcentral/newsreader/view_thread/242711 and http://www.mathworks.nl/h...

Solving homogeneous linear set of equations

seems a similar question: http://www.mathworks.com/matlabcentral/newsreader/view_thread/242711 and http://www.mathworks.nl/h...

8 years ago | 2

| accepted

Answered

Selecting data points in 3D space

Hi, in file exchange there is a file to extract a Volume of Interest, do no if that can help? regards,J

Selecting data points in 3D space

Hi, in file exchange there is a file to extract a Volume of Interest, do no if that can help? regards,J

8 years ago | 0

Answered

noise removal in Image

Ok so I indeed did not understand your question, I got interested and just did some googling: first found a paper: http://www...

noise removal in Image

Ok so I indeed did not understand your question, I got interested and just did some googling: first found a paper: http://www...

8 years ago | 0

Answered

noise removal in Image

Hi, first, quite a challenge to understand your question? did you check ' How to remove noise? or something like that in ma...

noise removal in Image

Hi, first, quite a challenge to understand your question? did you check ' How to remove noise? or something like that in ma...

8 years ago | 0

| accepted

Answered

How can I find an object distance in an image??

hi, first Your question is not clear? second, on a single image you can not extract object distance,=> you need stereovision, o...

How can I find an object distance in an image??

hi, first Your question is not clear? second, on a single image you can not extract object distance,=> you need stereovision, o...

8 years ago | 1

Question

testing collinearity with algorithm collinear7

Hi, I was looking for an algorithm to test collinearity and found : http://blogs.mathworks.com/loren/2008/06/06/collineari...

8 years ago | 1 answer | 0

Answered

detect and fit curved lines in an image

Hi, Hough Transform can also be used for detecting curves:http://faculty.washington.edu/cfolson/papers/pdf/cviu99.pdf reg...

detect and fit curved lines in an image

Hi, Hough Transform can also be used for detecting curves:http://faculty.washington.edu/cfolson/papers/pdf/cviu99.pdf reg...

8 years ago | 0

Answered

Check if matrix contains zero or not and ...

http://www.mathworks.com/matlabcentral/newsreader/view_thread/255797

Check if matrix contains zero or not and ...

http://www.mathworks.com/matlabcentral/newsreader/view_thread/255797

8 years ago | 0

Answered

How to change a variable within an equation in a loop?

do you mean for Counter=1: 48 s=[ 1 0 -1 F(i)] p(i)=roots(s) end probably I misunderstood becaus ethis seems to simpl...

How to change a variable within an equation in a loop?

do you mean for Counter=1: 48 s=[ 1 0 -1 F(i)] p(i)=roots(s) end probably I misunderstood becaus ethis seems to simpl...

8 years ago | 0

| accepted

Answered

Angles from XY coordinates from a matrix

Hi, two possibilities if you want to process a lot of data : you can use loops or vectorize, in this case, with few i...

Angles from XY coordinates from a matrix

Hi, two possibilities if you want to process a lot of data : you can use loops or vectorize, in this case, with few i...

8 years ago | 0

Answered

how to adjust the size of the cross

Hi, if your are talking about markers, then the answer is yes, you can set the marker size e.g. from the help docs: plot(x...

how to adjust the size of the cross

Hi, if your are talking about markers, then the answer is yes, you can set the marker size e.g. from the help docs: plot(x...

8 years ago | 1

| accepted

Answered

plotting two curve in one axes

use the hold function hold on for example will help regardsJ

plotting two curve in one axes

use the hold function hold on for example will help regardsJ

8 years ago | 0

Answered

Linear plot to contour plot

Hi, to make a contour plot you need two dimensions, since you only have r the radius it won't work You need the (x,y) c...

Linear plot to contour plot

Hi, to make a contour plot you need two dimensions, since you only have r the radius it won't work You need the (x,y) c...

8 years ago | 0

Answered

Differences between script and function file

Hi, the coding between script file and function is the same, only the header is different let's say I make in a script ...

Differences between script and function file

Hi, the coding between script file and function is the same, only the header is different let's say I make in a script ...

8 years ago | 0

Answered

i am new to the image processing. i need help for deblurring the below blurred image.

Hi, If you're new take a look at : <http://www.mathworks.nl/products/demos/image/ipexblind/ipexblind.html> regarsJ

i am new to the image processing. i need help for deblurring the below blurred image.

Hi, If you're new take a look at : <http://www.mathworks.nl/products/demos/image/ipexblind/ipexblind.html> regarsJ

8 years ago | 1

Answered

Surface of a equation

[x,y,z] = sphere(); r = 5; figure,surf( r*x +cx, r*y+ cy, r*z +cz) wit (cx,,cy,cz) the center look at http://www.mathworks....

Surface of a equation

[x,y,z] = sphere(); r = 5; figure,surf( r*x +cx, r*y+ cy, r*z +cz) wit (cx,,cy,cz) the center look at http://www.mathworks....

8 years ago | 0

Answered

I can not return real values

I think this code does what you want or no what I think that you want :-) Of course much nicer if you make a function of it ...

I can not return real values

I think this code does what you want or no what I think that you want :-) Of course much nicer if you make a function of it ...

8 years ago | 0

Answered

I can not return real values

I am not sure if I get it , is not so clearly explained but I would work with the length of the OriginalVector of size(OriginalV...

I can not return real values

I am not sure if I get it , is not so clearly explained but I would work with the length of the OriginalVector of size(OriginalV...

8 years ago | 0

Answered

Median filter for rgb images

Hey, I would perform it on one of the channels depinding on which features afterwards you want to extract, or perform it on ...

Median filter for rgb images

Hey, I would perform it on one of the channels depinding on which features afterwards you want to extract, or perform it on ...

8 years ago | 0