Traditional Culture Encyclopedia - Photography major - The color of the photos taken by d7 100 is very dim. What happened?

The color of the photos taken by d7 100 is very dim. What happened?

Maybe the saturation is not enough. I usually use bright mode, which increases the saturation, so the color is much brighter than before. Also, in the case of reflection, the color will be very white and dim. Some dim colors must be saturated later. The lenses also appear in different colors. Under-exposure, the second color will be stronger.