Multiple ROIs

[marooner]

Hi,
I need to select more than one ROIs on a single image.I am trying to display a new image by slecting some ROIs and subtracting them from the original image.I know how to subtract them one by one but can anyone help me in finding a better way of doing this, like selcting two or three images at a time and then displaying the image without these regions.
Thank You
Deepak

[BruceAmmons]

Deepak,

The quick way would be to hold down CTRL when drawing additional boxes.

If this doesn't work, you will need to store each ROI before starting the next. I would put a button on your user interface and add the current ROI to an array each time the button is pressed.

Bruce