[GIS] Building Masks (0-1 binary image) out of ROIs in Envi Classic

Question

I have the following 701×551 image in Envi with the shown raster ROIs (By pressing pixelbutton of ROI Tooldialogue window, I've converted the ROIs into raster format but I have access to ROI vectors eg. polygons if necessary) as training data.

I want to extract a binary image (a mask) with 701×551 pixels in Envi format in which the pixels inside the ROI are 1 and outside the ROI are 0, so I can use the ROIs as a matrix of 0-1 values and multiply it with my 701×551 data matrix in MATLAB to extract the the training vector for libsvm tool.

Is there any way to do this?

I'm using the classic GUI of Envi 5.3.

Answer 1

Found it: simply go to Basic Tools > Masking > Build Mask, select the desired display and then in the options menu of Mask Definition Dialog, select Import ROIs

And you'll get the following Mask: