/* Identify Euglena in a certain portion of the camera feed */
void identifyEuglena() {
  roiFrame = get(610, 290, roiWidth, roiHeight); // Get pixels of interest and saves as image for valid image path
  opencv.loadImage(roiFrame);   // Input proper pixels into cv processing
  opencv.updateBackground();    //Necessary for background subtraction
  opencv.useGray();             //Create grayscale image
  opencv.dilate();              //Clean up image
  opencv.erode();
  opencv.blur(3);
  dst = opencv.getOutput();     //Save computer vision as separate image path
  contours = opencv.findContours();  //Find outline of moving objects - euglena
  count = contours.size();           // Count number of outlines
}