Table 2.

Evaluation results by eight medical doctors for the proposed color chart

No	Comments
1	I think it is very good to have a color checker, because I can make corrections depending on the model and lighting. Because it is difficult to judge a moving image, it seems good to receive multiple still images to make such a judgment
2	Once I got used to it, I was able to use it
3	I felt that the color chart leads to an objective diagnosis
4	I found it difficult to tell if there was a shadow or not unless the light came from the front of the tongue. If possible, images taken from three directions, the frontal, first oblique, and second oblique, would provide a more reliable diagnosis. But it would be complicated
5	For the tongue color, if you are unfamiliar to you, there may be subjective impression of the color, so I think the proposal is good
6	It seems to be useful for telemedicine. I hope to the patients and doctors will get used to it
7	Until now, I was unable to understand what I was looking at, but I felt the potential of the chart
8	Skin diseases can be diagnosed accurately by the simultaneous color checker and imaging of the affected area before and after treatment and over time