已解决

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

13 years 前

已解决

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

13 years 前

已解决

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

13 years 前

已解决

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

13 years 前

已解决

How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

13 years 前

已回答
image toolbox help
type doc images in the command window.

14 years 前 | 0

已回答
plotting more data from large data
Hi doc gscatter hope this helps. Regards, W.

14 years 前 | 0

已回答
What does +(A>0) do?
I often do this to convert a logical matrix to double. However, I just tried and realized that this is slower than A = double(A>...

14 years 前 | 1

已回答
error using imsubtract
Hi Megah, apparently both variables don't have the same class. Try image3 = imsubtract(im2double(image1),im2double(BWfinal)...

14 years 前 | 0

已回答
Calculate the indirect distance between two points
Bahare, you might find this contribution interesting: <http://www.mathworks.com/matlabcentral/fileexchange/8625-shortest-pat...

14 years 前 | 0

已回答
Ordered connected components
Hi Dustin, I don't have MATLAB at hand right now, so I cannot try, but I think bwboundaries should solve your problem. [...

14 years 前 | 0

已回答
Graph analysis question
I just tried your example. While results of a kmeans clustering don't look too promising, the function clusterdata works quite w...

14 years 前 | 0

已回答
Overlay digital elevation model on hillshade
Hi Ajay, you might want to check TopoToolbox, which includes such a function. <http://physiogeo.unibas.ch/topotoolbox/> ...

14 years 前 | 0

已回答
Count black and white pixels on a image
How about using *blockproc* to get the number of white pixels (in case you have the image processing toolbox)? A = full(spran...

14 years 前 | 1

提问

Keeping k largest values in each column of a sparse matrix
Hi everyone, I am trying to implement an algorithm that involves a pruning of a large sparse matrix. The pruning scheme shoul...

14 years 前 | 1 个回答 | 0

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个回答

已回答
data correction
Hi, you can identify the NaNs using the function isnan. I = isnan(dem); % where dem is the digital elevation model The inpa...

14 years 前 | 0

已回答
Problem on fuzzy inference calculations ..
Hi, the error message says all: The first input must be a defined DOUBLE matrix Is the variable input in double format? ...

14 years 前 | 1

| 已接受

已回答
finding neighbor of a position
Hi, you might find this function useful. <http://www.mathworks.com/matlabcentral/fileexchange/16991-neighbor-indexing> ...

14 years 前 | 1

已回答
Connect bwlabeled components
I'd start with using the function bwlabeln to label the connected components in the 3d. This, however, requires them to never ov...

14 years 前 | 0

已回答
straighten curved Image
This is not trivial and I think you should show what you have done so far. If you haven't really started yet, you may want to lo...

14 years 前 | 0

已回答
correlation coefficient
Hi, doc corrcoef Best regards, W.

14 years 前 | 1

| 已接受

已回答
how to draw a grid in MATLAB???
Hi, take a look at Steve's blog, where he describes how to generate a pixel grid. Perhaps, this is what you want. <http://...

14 years 前 | 1

已回答
Kriging
To my knowlegde there is no comprehensive geostatistical software written in Matlab. I would always use packages such gstat or g...

14 years 前 | 2

已回答
How to plot a 2D vector-field and exclude zero-vectors (dots) in the graph?
How about: I = ~(T(:,3)==0 & T(:,4)==0); quiver(T(I,1),T(I,2),T(I,3),T(I,4)); cheers, Wolfgang

14 years 前 | 2

| 已接受

已回答
Is there a way to prevent or circumvent the formation of long edges in a Deluanay Triangulation?
Hi AJP, without knowing what exactly yoou want to do, I like to link to a tool that was extremely helful to me. <http://w...

14 years 前 | 0

已回答
TSP using GA
If this is so urgent for you, did you anything to find available code? Apparently not. Searching google with "tsp matlab ga" dir...

14 years 前 | 0

已回答
Edge direction
Hi, to extract edges of any direction, you just need to choose the right structuring element for a morphological opening. E....

14 years 前 | 3

| 已接受

已回答
How to make a 2-d binary shape a little more round?
You could also use a median filter to remove small objects and irregular boundaries. In a BW image, the median image would act l...

14 years 前 | 0

已回答
Locating the end points of a bridge-like structure in an image
Hi G, you might identify these two points by calculating a skeletonization of your BW-image. SK = bwmorph(BW,'skel',inf...

14 years 前 | 0

已回答
simulating traffice regulations with cellular automaton
Hi Sandeep, as a first step, take a look at steve's image processing blog. There is an example of how to implement one of the...

14 years 前 | 0