New Results in the Theory and Practical Application of Color DOI: http://dx.doi.org/10.5772/intechopen.84832

Table 12.

Integrated normal and pathological color characteristics of hemolyzed human blood, plasma, and serum [22–25].

resuscitation patients lies above that spectrum, and the averaged spectrum for patients with cirrhosis of the liver lies even higher. Probably such positioning of the spectra reflects the severity of the general condition of the patients, if we assume that cirrhosis is the most severe condition for the patients with the least likelihood of recovery. We do not observe such a dependence for the hemolyzed blood: the averaged spectrum for the patients with purulent diseases lies below the averaged

Averaged spectra of hemolyzed blood (a), plasma (b), and serum (c) of examined groups of patients (▲ = donors, ¨ = I, ¤ = II, = III) compared with averaged spectrum of hemolyzed blood, plasma, and serum,

Table 12 gives the averaged color coordinates and lightness for the donors and each group of examined patients, calculated for the solutions of blood, plasma, and serum as a single light-absorbing system according to the standard CIE method. For

this case also decrease from 4.7 for blood down to 1.3 for serum. The chromaticity

from 3.2 for blood down to 2.0 for serum. The parameter z for the donors is higher

coefficient of variation for this parameter is maximum for blood (67.6) and minimum for serum (2.5). The lightness, as expected, has the maximum value (84.88–

The average values of the color coordinates for all the patient groups

(see Table 12) are virtually no different from the averages for the donors except for

In determining the color range (see Figure 9a) for the dilute solutions (1.40) of hemolyzed blood, plasma, and serum from the donors, the color range of blood falls within the red region of the spectrum; the range for plasma and serum falls within the yellow region with lower saturation, which supports the correctness of our experiments and calculations. The corresponding regions for the color range for the patients cover a larger area than for the donors (Figure 9b). In order to better visualize the results obtained, we calculated the color coordinates for the studied specimens with correction for concentration. All the points for the donors lie within

0.008 (for hemolyzed blood). The coefficients of variation in

0.003 for blood. The coefficients of variation for y steadily decrease

0.003) than for blood (0.030

0.001 (for serum and

0.002 for plasma and serum

0.005). The

–0.67) for hemolyzed blood. For

–50%, which corresponds to the

spectrum for the donors (Figure 9).

plasma) to 0.630

visual observations.

30

for serum and plasma (0.360

and 0.340

Figure 9.

Color Detection

respectively, from donors [25].

the donors, the chromaticity coordinate x varies from 0.320

plasma, this parameter is close to the value typical of serum.

coordinate y for the donors has similar values: 0.320

1.54) for serum and the minimum value (11.55

the yellow-orange region with saturation of 30

