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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...
11 years 前
已回答
Mex results different from linux to windows!
I answer myself. The problem was related to the function abs. In gcc, math.h has a C version of abs that works on integers, so g...
Mex results different from linux to windows!
I answer myself. The problem was related to the function abs. In gcc, math.h has a C version of abs that works on integers, so g...
11 years 前 | 0
| 已接受
提问
Mex results different from linux to windows!
Hello everyone. I have a mex routine written in C++ that I use on a Windows computer compiled through Visual Studio. Now I ne...
11 years 前 | 1 个回答 | 0
1
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may i directly convert video to text document using matlab ?
You can use matlab OCR function: <http://uk.mathworks.com/help/vision/examples/recognize-text-using-optical-character-recogni...
may i directly convert video to text document using matlab ?
You can use matlab OCR function: <http://uk.mathworks.com/help/vision/examples/recognize-text-using-optical-character-recogni...
11 years 前 | 0
已回答
how to display a query image and database side-side ? i have few lines but i am not able to proceed ahead with them as they are incomplete .
Maybe you want to use subplot: figure subplot(1,2,1) imshow(im1) subplot(1,2,2) imshow(im2)
how to display a query image and database side-side ? i have few lines but i am not able to proceed ahead with them as they are incomplete .
Maybe you want to use subplot: figure subplot(1,2,1) imshow(im1) subplot(1,2,2) imshow(im2)
11 years 前 | 0
已提交
Where am I in the code?
Simple script to open the editor on the current debugging line
11 years 前 | 106 次下载 |
已回答
How to stop printing anything to command window?
The best solution would be using disp inside an if statement. A really bad soulution (still working) would be replacing the fun...
How to stop printing anything to command window?
The best solution would be using disp inside an if statement. A really bad soulution (still working) would be replacing the fun...
11 years 前 | 0
已回答
script running for 13 hours. should I be worried?
You can use a task manager to check if matlab is still using the CPU. If not, it probably got stuck.
script running for 13 hours. should I be worried?
You can use a task manager to check if matlab is still using the CPU. If not, it probably got stuck.
11 years 前 | 0
已回答
Find the distance between object and camera
Calculating the distance between an object and a camera in not an easy task. In theory, you would need two different cameras bec...
Find the distance between object and camera
Calculating the distance between an object and a camera in not an easy task. In theory, you would need two different cameras bec...
11 years 前 | 0
已回答
Why are vectors horizontally and matrices vertically indexed?
Matlab variables are always indexed vertically. What you are talking about is a plot behaviour: plot(X,Y) plots vector Y v...
Why are vectors horizontally and matrices vertically indexed?
Matlab variables are always indexed vertically. What you are talking about is a plot behaviour: plot(X,Y) plots vector Y v...
11 years 前 | 0
已回答
estimate time needed for a code to finish
This is my favourite solution: tic for i = 1:1e9 if toc > 10 fprintf('Iteration %d/%d\n',i,1e9) ...
estimate time needed for a code to finish
This is my favourite solution: tic for i = 1:1e9 if toc > 10 fprintf('Iteration %d/%d\n',i,1e9) ...
11 years 前 | 2
| 已接受
已回答
Calculating statistical PDF and percentiles over matrices
You can replace x with x(:) in prctile. The whole matrix will be squeezed in a single vector what will be evaluated just once.
Calculating statistical PDF and percentiles over matrices
You can replace x with x(:) in prctile. The whole matrix will be squeezed in a single vector what will be evaluated just once.
11 years 前 | 0
已回答
The definition of variables
You can create integer random vectors with randi(), convert it to binary with de2bi(), and convert input binary to decimal with ...
The definition of variables
You can create integer random vectors with randi(), convert it to binary with de2bi(), and convert input binary to decimal with ...
11 years 前 | 0
| 已接受
已回答
HELP with Undefined variable, size of the indicated variable changes with each loop iteration.
The variable files is a cell array, and you are trying to refer it as a matrix. You should use files{i} instead of files(i,1) wh...
HELP with Undefined variable, size of the indicated variable changes with each loop iteration.
The variable files is a cell array, and you are trying to refer it as a matrix. You should use files{i} instead of files(i,1) wh...
11 years 前 | 0
已回答
how can i make my scattered 3 dimensional data points as a 3d surface?
tri = delaunay(k(:,1),k(:,2)); trisurf(tri,k(:,1),k(:,2),k(:,3))
how can i make my scattered 3 dimensional data points as a 3d surface?
tri = delaunay(k(:,1),k(:,2)); trisurf(tri,k(:,1),k(:,2),k(:,3))
11 years 前 | 0
已回答
how to read audio file?
You can use audioread: http://uk.mathworks.com/help/matlab/ref/audioread.html
how to read audio file?
You can use audioread: http://uk.mathworks.com/help/matlab/ref/audioread.html
11 years 前 | 0
| 已接受
已回答
How to find the variance of an image in a special windows? variance(in 3*3 windows)
You can use the function conv2: A = imread('foo.bmp'); small_window = ones(3)/9; A_sq = conv2(A.^2,small_window,'s...
How to find the variance of an image in a special windows? variance(in 3*3 windows)
You can use the function conv2: A = imread('foo.bmp'); small_window = ones(3)/9; A_sq = conv2(A.^2,small_window,'s...
11 years 前 | 0
已回答
Problem in Plot diagrams
I cannot see your attachment, but you can use any char you wish for your plot, just using text instead of plot: x = linspac...
Problem in Plot diagrams
I cannot see your attachment, but you can use any char you wish for your plot, just using text instead of plot: x = linspac...
11 years 前 | 0
已回答
How to use threshold in this problem?
Supposed your image varies from o to 1, you could use a threshold in this way: THR = 0.5 above = image>=THR; imag...
How to use threshold in this problem?
Supposed your image varies from o to 1, you could use a threshold in this way: THR = 0.5 above = image>=THR; imag...
11 years 前 | 0
| 已接受
已回答
Distance from 3d point to an ellipse
A simple and straightforward solution could be discretizing the points of the ellipse, evaluating the distance from all the poin...
Distance from 3d point to an ellipse
A simple and straightforward solution could be discretizing the points of the ellipse, evaluating the distance from all the poin...
11 years 前 | 0
已回答
How to convert an acceleration time graph, into a velocity time graph
You can integrate the acceleration vector with cumsum or cumtrapz to get the velocity, and again to get the space.
How to convert an acceleration time graph, into a velocity time graph
You can integrate the acceleration vector with cumsum or cumtrapz to get the velocity, and again to get the space.
11 years 前 | 0
| 已接受
已回答
plot smooth curve through discreet points
xx = linspace(min(x),max(x),100); yy = spline(x,y,xx); figure,plot(x,y,'o',xx,yy)
plot smooth curve through discreet points
xx = linspace(min(x),max(x),100); yy = spline(x,y,xx); figure,plot(x,y,'o',xx,yy)
11 years 前 | 2
已回答
Solving an integral with variable as upper limit and plotting the solution
You can use cumsum or cumtrapz.
Solving an integral with variable as upper limit and plotting the solution
You can use cumsum or cumtrapz.
11 years 前 | 0
已回答
what does this mean?
hblms is a struct array ( http://uk.mathworks.com/help/matlab/ref/struct.html ) Set its variable WeightsOutputPort to false
what does this mean?
hblms is a struct array ( http://uk.mathworks.com/help/matlab/ref/struct.html ) Set its variable WeightsOutputPort to false
11 years 前 | 1
| 已接受
已回答
Determing intermediate points in 3D mesh plot
If the points are on regular grid, you can use interp2: interp2(x,y,z,x0,y0,'cubic') Otherwise, you can scatteredInt...
Determing intermediate points in 3D mesh plot
If the points are on regular grid, you can use interp2: interp2(x,y,z,x0,y0,'cubic') Otherwise, you can scatteredInt...
11 years 前 | 0
| 已接受
已回答
Why is my surface not fitting the data points smoothly?
You can try to plot your surface with trisurf: [x,y]=meshgrid(1:15,1:15); tri = delaunay(x,y); z = peaks(15)...
Why is my surface not fitting the data points smoothly?
You can try to plot your surface with trisurf: [x,y]=meshgrid(1:15,1:15); tri = delaunay(x,y); z = peaks(15)...
11 years 前 | 0
已回答
Stitching sub images to reconstruct full image
What about using mat2cell and cell2mat? It should be much easier.
Stitching sub images to reconstruct full image
What about using mat2cell and cell2mat? It should be much easier.
11 years 前 | 0
已回答
surf plot- Z must be a matrix, not a scalar or vector.
The surf function requires the z values to be a matrix. If you have column data you can use trisurf, instead: tri = delaun...
surf plot- Z must be a matrix, not a scalar or vector.
The surf function requires the z values to be a matrix. If you have column data you can use trisurf, instead: tri = delaun...
11 years 前 | 2
提问
Delaunay special constraints not being part of the triangulation
Hello, I'm trying to create a constrained delaunay triangulation of a set of points: in particular, I don't wont triangles to i...
12 years 前 | 1 个回答 | 1
