roitool

Interactive roi definition tool

Description

ROITOOL enables to define different type of rois on images (intensity, RGB) by mouse. The supported types are 'polygon', 'circle' and 'rectangle'. ROIPOLY returns the handler of the line object relating
 to the roi. The created roi can be dragged and moved to any position of the image with the help of DRAGGABE function (developed by Francois Bouffard, see the help of draggable).

ROITOOL generates a context menu to the roi making possible the selection of the following commands:(MATLAB displays the context menu whenever you right-click over the object)

- change the roi color
- change the size of the line width
- switch on/off the 'statistical bar', which displays the main stat. results of the roi (mean, std, min, max, roi area)
- switch on/off the 'histogram figure', which shows the intensity histogram of the pixels belonging to the roi
- switch on/off the 'detailed rectangle' figure, which plots the zoomed image segment defined by the rectangle roi
- resize the roi (in case of circle or rectangle roi)
- delete the roi

ROITOOL('circledemo'), ROITOOL('rectangledemo') or ROITOOL('polygondemo')

start the roi definition using the MATLAB 'MRI' data set.
  
Installing, running: unzip the downloaded file and include them to your matlab path

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
draggable

• Required Products: Image Processing Toolbox
• MATLAB release: MATLAB 7.0.4 (R14SP2)

[A B]

what sure i put in for arg1,2 and 3? help, please

[S C]

the POLY2MASK sub-function is undefined, why?
help please!

[Laszlo Balkay]

Comments to [e-mail]

The POLY2MASK sub-function is part of the image processing toolbox, which is required for ROITOOL. (see the detailed description above)
 

[Gal Haspel]

did not work at first. error when calling "var". I had to change lines 286 and 370 to
roistd = std(double(userdata.currentimage(pixel_range)));

after that, it's useful and nice. thanks a lot!

[winnie]

I tried this tool today, but I could not retrieve the output. All it gave me was a single number... Any ideas? I need an output telling me the ROI co-ordinates!

[Laszlo Balkay]

Comment to Winnie: You can get the ROI handler issuing (for example) ">> roi_handler = roitool('circledemo');" and the ROI coordinates can be import by "x = get(roi_handler,'Xdata');
y = get(roi_handler,'Ydata');"

 
 

[Soha]

I've tried this around a week ago and it's great. I would like to retrieve the histogram data, anyway I could do this? (pixels values in the area chosen)

[Soha]