Table 2 Color combinations of the five superior visual aesthetic quality forest photo types (A–E).
Type | Color common factor differences | Main color characteristic interpretations | Example images |
|---|---|---|---|
A |
| F1 and F2 were the highest among the five types. The color patch diversity was very high, and the proportion of the largest color patch was medium to low. The proportion of blue-green hue series was very high, and the ratios of the red and yellow series were very small. Saturation and value were at moderate levels |
|
B |
| Color patch diversity was relatively high. The red, yellow, and yellow-green hues (H5) were relatively more prominent, and the blue-green series accounted for a relatively small proportion among the five types (Table S6). Saturation and value were at medium levels |
|
C |
| The color patches were diverse and balanced. A high proportion of the hues were greens, and red and yellow colors were minimal. Saturation and value were at medium to high levels. Among the five types, F5 was at its highest here. Black was the highest, thus, leading to obvious value contrast (Table S6) |
|
D |
| Among the five types, F1 was at its lowest here. The color patches were highly agglomerated with the largest color patch comprising the largest proportion of the photo. The landscape structure was relatively simple. The proportion of low-value gray patches was very high, but there were high value, saturation, and red-yellow series in small patches scattered in the photo. They contrasted with the main gray patches |
|
E |
| Color patches were diversified, balanced, and had integral unity. Both the red and yellow series were proportionally high, while the blue-green series had a smaller proportion than A-C, and colors were relatively rich. Since F6 had the highest factor value, both the saturation and value of the overall photo were very high |
|
