Hi, I'm trying to figure out a way to run SVM programmatically and for that I need to generate ROIs from a raster image. First, I create 2D arrays of the same size as the image to be classified, which value 0 and 255, where value 255 indicates a training pixel. Then I use the RTV_DOIT procedure to vectorize these data. However, it only outputs the results to memory. How can I programmatically access generated vector files? In other words, can I save these files to disk or get their file ids somehow? Would you suggest a faster way to perform an SVM classification, without creating vector files? It would be great if the SVM routine was included in the CLASS_DOIT procedure! Thank you in advance, Ilia