How to segemnt gray scale image instantlly without any data set training ?

How to segemnt gray scale image instantlly without any data set training ?

Answer 1

[KALYAN ACHARJYA]

Do thresholding, or other unsupervised approaches.

It would be more clear, if you share sample image with region of interest specified.

[voxey]

@KALYAN , can you share sample code?

[KALYAN ACHARJYA]

threshold_value=....??
result=gray_Image<threshold_value;
%Apply this mask on original image to get RoI

It would be more clear, if you share sample image with region of interest specified.

[voxey]

@KALYAN thanks for reply, i am asking unsupervise algorithm ? also that threshold value should be taken automatically from on given input image? is its possible take automatic threshold set?

[KALYAN ACHARJYA]

Thresholding (Easiest and Basic Approach).. which is unsupervised approach.

also that threshold value should be taken automatically from on given input image? is its possible take automatic threshold set?

Yes, Global image threshold using Otsu's method, look here

Which segmentation approach most suite in your case depends on input image.

Hope your question is answered?

[voxey]

Hi KALYAN ACHARJYA, Your answer not related to my question.

[voxey]

KALYAN ACHARJYA, for Medical Images [DICOM] which algorithm suitble for automatic segmentation ?