- The images of spores under microscope were captured by area-scan CCD camera,and the gray level images were then transferred into binary images by adjusting threshold.
- Hence, this scheme is powerful and possesses the adjustable threshold value to obtain the balance relationships between the imperceptibility and robustness.
- The cabin has a flat stone for a threshold.
- The water pressure may need adjusting.
- The treaty will be the threshold of lasting peace.