shift-mean pour l'image

S'il vous plaît, j'ai besoin d'un code d'algorithme Shift Mean pour la segmentation d'une image en niveaux de gris. Si quelqu'un peut m'aider, merci d'avance.

[Mathieu NOE]

hello

have you tried this one ?

Mean Shift Clustering - File Exchange - MATLAB Central (mathworks.com)

NB : see the comments how to tweak it for grey images

[Med]

J'ai essayé, mais j'ai obtenu une image noire avec des lignes gris aléatoires.

[Mathieu NOE]

can you share your original image ?

[Med]

[Mathieu NOE]

there are some solutions already available on the internet - have you tried them already ?

K-means on a gray scale image - MATLAB Answers - MATLAB Central (mathworks.com)

Adaptive kmeans Clustering for Color and Gray Image. - File Exchange - MATLAB Central (mathworks.com)

k means - How to apply kmeans clustering on gray scale image in matlab - Stack Overflow

GitHub - cominsys/Image-Clustering-with-Optimization-Algorithms-and-Color-Space: Image Clustering with Optimization Algorithms and Color Space - Matlab Codes

and probably a lot more ....

File Exchange - MATLAB Central (mathworks.com)

[Med]

j'ai deja utilise kmean mais j'ai obtinu des resultats incorrecte de segmentation

[Mathieu NOE]

I am not an image processing expert, but I tried a couple of options, and this one seems to me quite interesting - also because it does not require any toolbox

Fast kmeans Algorithm Code - File Exchange - MATLAB Central (mathworks.com)

Result obtained with 5 clusters

im = imread('image.png');
im = rgb2gray(im);

[label_im,vec_mean] = kmeans_fast_Color(im,5);
imshow(label_im,[])

[Med]

Merci beaucoup mon ami pour tes efforts. Tu as raison, le K-means donne des résultats très satisfaisants pour certains protocoles, mais pour un protocole TDM cérébral contenant plusieurs structures anatomiques, il ne fonctionne pas correctement. C'est pourquoi je cherche à utiliser le Shift-Mean comme alternative.

[Mathieu NOE]

hello again

there are some other shift mean image processing Fex submissions available

File Exchange - MATLAB Central (mathworks.com)

I don't know exactly what kind of results you want to achieve , so I let you try

all the best