Furthermore, considering the first set of experiments (Set 1), capturing colored images periodically leads to the highest power consumption. Scenarios ranked by decreasing power consumption are as follows: taking the grayscale and colored images one minute apart (Set 2), taking the colored image only in the 5th minute and the grayscale in between those periods at one minute apart (Set 3), and finally with the histogram condition (Set 4). In the experiment,
the reduction rate of battery power also depends on both active and background processes, and in practice, measuring the battery usage may result in fluctuation of the battery level. However, here, the results show a decreasing trend over time. It should also be noted that from the observation, the computing consumption for grayscale transformation does not significantly affect the percentage of battery consumption when comparing Sets 1 and 2 or Sets 3 and 4.