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coordinate edge of the ceramic into pixel (x,y)
try this .. a=imread() ; a=rgb2ycbcr(a); a=a(:,:,2); a=edge(a,'canny',[0.1 0.5],15); you can get the coordinates using fin...

environ 12 ans il y a | 0

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find guite the same elements
let say you have 2 vector A ,B (like your columns there) you can do something like : [C, ia] = unique(A); for k = 1:length(ia...

environ 12 ans il y a | 0

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Cut an area in the image
you can choose top left and bottom left boundaries using range=ginput(2); and then image=image(range(1,2):range(2,2),range(1...

environ 12 ans il y a | 0

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Clustering
try imopen with strel('line',rho,theta)

environ 12 ans il y a | 0

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How can i calculate e^A*t
exp(A.*t)

environ 12 ans il y a | 1

| A accepté

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Getting rid of lots of thin black lines on an image
You can use, find() , something like this : [r,c,v]=find(bmpimage==0); for i=1:size(r) bmpimage(r(i),c(i))=(bmpim...

environ 12 ans il y a | 0

| A accepté

Question

close lines after edge detection
Hi all, After edge detection and adding some circular object, I like to close the lines and fill each area. this is an example...

environ 12 ans il y a | 2 réponses | 1

Question

imwrite to full (screen) size
Hi all, Im using imwrite to save images to disk and then later on imread, im2frame and movie2avi to create an avi movie file. ...

environ 12 ans il y a | 1 réponse | 0

Question

OUT OF MEMORY
Hi all, I want to work on an image, but without reducing the resolution by much (for now I use imresize ()).without using it I...

plus de 12 ans il y a | 1 réponse | 0

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Time difference between images.
Figured it out .. datenum (or the Serial Date Number) gives the fractional number of days from a specific date and time. so I ca...

plus de 12 ans il y a | 0

| A accepté

Question

Time difference between images.
Hi all, is there an easy way to get the difference in the time an image was taken between 2 jpg files? and what datenum number...

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

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finding rotation of angle
you can use imrotate() running over angles and subtract the result with the original image until you get a zero matrix.

plus de 12 ans il y a | 0

Question

Help removing unwanted lines from image and identify spots
After some enhancement I get the following image: <http://i44.tinypic.com/2jfwsnd.jpg> I want to identify the spots which clea...

plus de 12 ans il y a | 1 réponse | 1