Target objects

Hi,

I'm trying to segment images that have objects with different intensities and some of the objects have intensity close to the intensity of the background. Initially I targeted the background and region of objects. In the second phase used the function imextendedmin to target objects with the lower intensities. Now I need to segment the objects that have medium intensity, ie, objects that have the intensity of the objects targeted by imextendedmin and background. I've tried the functions and imregionalmin imhimin but got no results. Someone help me, please?

[Jan]

What exactly is your question?

[Marlene]

Hi,

My question is if anyone knows how do I target objects with higher intensity.

[Marlene]

I detected the local minima (imextendedmin), now I need to detect the "average" local.

[Image Analyst]

How can we help you? Have you provided us an image to look at? Any sample code? I don't see any so I don't know what I can do. I care about the image more than anything (such as your algorithm) since often the algorithm people think will work is totally way off base. What are you expecting from us, given that you're not providing us with anything very useful? Post your image on tinypic.com and post another image with the objects you want to measure outlined in red.

[Marlene]

Sorry, I'm new here! Already posted my picture is in

http://s1178.photobucket.com/albums/x378/msmaxado/

The first image (img1) is the image has no background, only the objects region. In the second image (img2), the gray is the result of the first segmentation and the white the result of the second segmentation (using the imextendedmin). Now I need to segment the objects in the red circle(img3). How can I do?

[Marlene]

No one knows how to help me?

Answer 1

[Sean de Wolski]

I think I would use my shrinkWrap function from the fex on the gradient magnitude image.

%Something along the lines of:
[fx fy] = gradient(I);
GM = hypot(fx,fy);
M = shrinkWrap(GM,'objthresh',too_be_determined(see_help));

[Marlene]

I'll try...