srecord noeq G22StreaksToRegions(Hi15ImageStreaks streaks) {
  run {
    short[] pixels = streaks.inputImage.pixels;
    int w = streaks.w(), h = streaks.h();
    
    // turn streaks in first row into regions
    int lineStart = 0, lineEnd = lineStarts[1];
    int iStreak = 0;
    
    while (iStreak < lineEnd) {
      
    }
  }
}