  Plant aliveness is proven through laboratory experiments and special
scientific instruments. In this paper, we aim to detect the degree of animation
of plants based on the magnification of the small color changes in the plant's
green leaves using the Eulerian video magnification. Capturing the video under
a controlled environment, e.g., using a tripod and direct current (DC) light
sources, reduces camera movements and minimizes light fluctuations; we aim to
reduce the external factors as much as possible. The acquired video is then
stabilized and a proposed algorithm used to reduce the illumination variations.
Lastly, the Euler magnification is utilized to magnify the color changes on the
light invariant video. The proposed system does not require any special purpose
instruments as it uses a digital camera with a regular frame rate. The results
of magnified color changes on both natural and plastic leaves show that the
live green leaves have color changes in contrast to the plastic leaves. Hence,
we can argue that the color changes of the leaves are due to biological
operations, such as photosynthesis. To date, this is possibly the first work
that focuses on interpreting visually, some biological operations of plants
without any special purpose instruments.
