Table 4.9 Values of distance between position of points of monochromatic colors of chromaticity diagram for stimulus luminance, equal 20 и 200 cd/m2 for stimulus luminance, equal 50 cd/m2

Surround
	380	485	495	515	550	580	700
average	8.71	6.26	6.11	6.28	6.37	6.44	7.26
dim	7.99	6.18	6.03	6.19	6.27	6.24	7.15
dark	7.50	6.05	5.90	6.09	6.14	6.01	7.04

^{TABLE 4.10 Values of distance between position of points of monochromatic colors of chromaticity diagram for average and dim surround for the values of adapting lightness , equal 20 and 200 cd/m2 for stimulus luminance, equal to 50 cd/m}2

20	5.84	4.44	4.27	4.13	3.85	3.59	3.46
200	7.03	4.48	4.29	4.15	3.89	3.70	3.52

Table 4.11 Values of distance between position of points of monochromatic colors of chromaticity diagram for combined adapting luminance and surround for stimulus luminance, equal 50 cd/m2

Conditions of viewing (adapting luminance and surround) on capturing and reproduction ends
	380	485	495	515	550	580	700
– average – dim	13.8	8.96	8.71	8.86	8.9	9.04	10.24
– average – dark	18.73	12.49	12.13	12.26	12.19	12.23	13.96
– average – dim	5.55	6.07	5.86	5.80	5.53	5.02	4.72

Comparison of values with the evaluation of occurrence on image

In [4.8] the correlation between value of characterizing divergence between the colors of the original scene and its image presented Table 4.11, is published. It is seen that distortions can vary at levels from barely noticeable to impermissible.

Data of works [4.9, 4.10], presented on picture 4.19, are comparable with this evaluation.

Comparison of evaluations resulted in tables 4.2‒4.11 with data of table 4.12 and picture 4.19 testifies that in the conditions of independently changing surround of image and adapting luminance at the transmitting side and on a receiving side can result in distortions of colour rendition from a level unnoticeable or barely noticeable to the level of impermissible impairment of image colorimetric quality.