doTraining = false;
if ~doTraining && ~exist("fasterRCNNResNet50EndToEndVehicleExample.mat","file")
    disp("Downloading pretrained detector (118 MD)...");
    pretrainedURL = "https://www.mathworks.com/supportfiles/vision/data/fasterRCNNResNet50EndToEndVehicleExample.mat";
    websave("fasterRCNNResNet50EndToEndVehicleExample.mat",pretrainedURL);
end