To calculate the change in energy (ΔE):
\[ \Delta E = E_{\text{final}} - E_{\text{initial}} \]
Where:
Delta E is a metric used in colorimetry to quantify the difference between two colors. It is a single number that represents the 'distance' between two colors in a multi-dimensional color space. The term 'Delta' is used to denote difference, and 'E' stands for Empfindung, a German word for sensation.
The calculation of Delta E takes into account the differences in the three attributes that define a color: hue, saturation, and lightness. A Delta E value of 0 would mean the two colors are identical, while a higher value indicates a greater difference between the two colors. The exact interpretation of a specific Delta E value can depend on the application and the specific color space being used. For example, in some contexts, a Delta E of 1.0 is often considered the smallest color difference that can be perceived by the human eye.
Let's assume the following values:
Using the formula:
\[ \Delta E = 150 - 100 = 50 \text{ J} \]
The Change in Energy (ΔE) is 50 J.
Let's assume the following values:
Using the formula:
\[ \Delta E = 250 - 200 = 50 \text{ J} \]
The Change in Energy (ΔE) is 50 J.