What happened to the Color Thresholder App in the Image Processing Toolbox?

I'm trying to do color thresholding on HSV and LAB images. I read online that there is a Color Thresholder App, but I have been unable to find/download it. Has it been removed? Or am I looking in the wrong place?

Answer 1

[Image Analyst]

That's Brett's tool. See http://www.mathworks.com/matlabcentral/fileexchange/38484-segmenttool-an-interactive-gui-for-segmenting-images Though he works for the Mathworks, that tool was never part of the Image Processing Toolbox, though maybe it should be.

[Image Analyst]

Actually your link is to R2014a documentation and I haven't tried that yet. It doesn't look exactly like Brett's tool - not sure which developer contributed that one (it might have been Brett though).

[Kevin]

Thanks for the reply, Image Analyst. I'm a bit confused because Brett's SegmentTool seems to be different from the colorThresholder tool described by the Matlab Documentation. I'm trying to use color thresholding to isolate and track a basketball in HSV and Lab colorspace, but I can't figure out how to do that with the SegmentTool. Any tips? Thanks!

[Kevin]

To clarify, my difficulty with SegmentTool is that I can't figure out how to individually adjust the threshold ranges of the separate color channels (i.e. H,S, and V or L, a, and b). I can only convert the RGB to the other colorspaces.

[Image Analyst]

If you're going to do it based on color, see my color segmentation demos in my File Exchange http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

Of course there are other criteria you'll need to apply such as it's round and moving, but even there you'll have problems. What if the boundary is not round because it's obscured by a player's hand? What if the ball is not moving? What if there's the same color in the stands? What if the ball is not visible at all?

Answer 2

[Alex Taylor]

The colorThresholder is an R2014a feature of the Image Processing Toolbox. You will need the newest release which came out a week ago to use this feature.

http://www.mathworks.com/help/images/image-segmentation-using-the-color-thesholder-app.html