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Tables available in Wyszecki and Stiles give CIE chromaticityvalues for a large number
1992
Cited by 4
Tables available in Wyszecki and Stiles give CIE chromaticity values for a large number of Munsell colours [Wys82]. Once we have the CIE values for a Munsell colour, we can use Equation 5.5 to convert them into RGB triples. Not all the Munsell colours can be displayed by the monitor. Many of them fall outside the monitor apos;s colour gamut. In particular, the number of displayable green, blue-green, and blue hues is quite limited. Table 5.2 shows the number of di erent chroma values available for each of the primary Munsell hue and value combinations. We know how to convert Munsell colours to monitor RGB colour space. We must still choose two Munsell colours for our experiment. Recall that we required the following properties of our two hues. 1. The hues will be isoluminent, that is, the perceived brightness of both hues will be equal 2. The perceived di erence between hues H1 and H2 will be equal to the perceived di erence between a rectangle rotated 0 and one rotated 60
1992
Cited by 4
Table 1: CIE 1931 coordinates and cone contrasts of adapting and reference backgrounds. The luminance of all colors was 26.0 cd/m2.
2000
"... In PAGE 5: ... A Photo Research PR 650 spectroradiometer was used to measure the spectra of the red, green and blue phosphors at their maximum intensity setting. The spectra were multiplied with the CIE 1931 color matching functions, as revised by Judd (1951; see Wyszecki amp; Stiles, 1982, Table1 (5.5.... In PAGE 7: ..., 1987) to simultaneously make measurements at all adaptation times during the same experimental session. Here, subjects initially adapted to the reference color, which was one of four colors described in Table1 . After an initial 120 s of adaptation to the reference color, the monitor background and the lamps switched synchronously to the adapting color, which was always opponent to the reference color on the same cardinal axis.... In PAGE 7: ... In the discrimination experiments the chro- matic contrast of the comparison patch was adjusted with a staircase procedure (Levitt, 1971). The dis- criminated colors were also one of the four chroma- ticities described in Table1 . They were chosen to have maximal thresholds when adapted to the refer- ence colors and minimal when adapted to the adapt- ing color.... In PAGE 10: ... Thresholds and achromatic loci were determined as above for the slow phase. The chromaticities of adapting back- ground and reference background also were the same as in the previous experiments, described in Table1 . For brevity, we constrained our measure- ments to one color direction on each axis, from green to red, and from blue to yellow.... In PAGE 12: ...5 1.5 Time[s] Slow Adaptation Fast Adaptation AS 80 60 40 20 0 Adaptation [% total] 100 Figure 8:Full time course of adap- tation of chromatic discrimination for a single observer (AS) for adap- tation from green to red, as described in Table1 . On the x-axis the time after switching from refer- ence background to adapting back- ground (adaptation time) is plotted.... ..."
Cited by 2
Table 1. Face databases.
2002
"... In PAGE 24: ... different lighting level 3. facial expres- sions ground truths Table1 . Face databases.... In PAGE 25: ... poses: frontal and profile 2. size Table1 . Face databases.... In PAGE 71: ...4 calibrated conditions (except Nogatech, where only 3 calibrated cases were used because of limited calibration capabilities) and the results can be seen in Table 12. The same was done also for all 16 cases ( Table1 3). It can be concluded from these tables, that the overlap between different skin groups was in all cases reasonably high.... In PAGE 78: ...Fig. 27. Face localization by (a) a box and (b) a polygon. Table1 7: Selected frames from an indoor Alaris video. Frame 1 Frame 51 Frame 101 Frame 151 Frame 201 Frame 251 Frame 301 Frame 351 Frame 401 Frame 451 Frame 501 Frame 551 (a)... In PAGE 108: ... A1.15-17 and specific coeffi- cients for different standards are in Table1 . The general YCbCr definition is: (A1.... In PAGE 108: ...18-19)are obtained by normalizing the RGB with intensity I (Wyszecki amp; Stiles 2000): (A1.18) Table1 : Coefficients for two YCbCr standards Standard Red coefficient c1 Green coefficient c2 Blue coefficient c3 Rec.601 0.... ..."
Table 1. Face databases.
2002
"... In PAGE 23: ...but they are not taken in real, drastic conditions. Table1 . Face databases.... In PAGE 25: ... poses: frontal and profile 2. size Table1 . Face databases.... In PAGE 71: ...4 calibrated conditions (except Nogatech, where only 3 calibrated cases were used because of limited calibration capabilities) and the results can be seen in Table 12. The same was done also for all 16 cases ( Table1 3). It can be concluded from these tables, that the overlap between different skin groups was in all cases reasonably high.... In PAGE 78: ...Fig. 27. Face localization by (a) a box and (b) a polygon. Table1 7: Selected frames from an indoor Alaris video. Frame 1 Frame 51 Frame 101 Frame 151 Frame 201 Frame 251 Frame 301 Frame 351 Frame 401 Frame 451 Frame 501 Frame 551 (a)... In PAGE 108: ... A1.15-17 and specific coeffi- cients for different standards are in Table1 . The general YCbCr definition is: (A1.... In PAGE 108: ...18-19)are obtained by normalizing the RGB with intensity I (Wyszecki amp; Stiles 2000): (A1.18) Table1 : Coefficients for two YCbCr standards Standard Red coefficient c1 Green coefficient c2 Blue coefficient c3 Rec.601 0.... ..."
Table 1. Face databases.
2002
"... In PAGE 23: ...but they are not taken in real, drastic conditions. Table1 . Face databases.... In PAGE 24: ... different lighting level 3. facial expres- sions ground truths Table1 . Face databases.... In PAGE 71: ...4 calibrated conditions (except Nogatech, where only 3 calibrated cases were used because of limited calibration capabilities) and the results can be seen in Table 12. The same was done also for all 16 cases ( Table1 3). It can be concluded from these tables, that the overlap between different skin groups was in all cases reasonably high.... In PAGE 78: ...Fig. 27. Face localization by (a) a box and (b) a polygon. Table1 7: Selected frames from an indoor Alaris video. Frame 1 Frame 51 Frame 101 Frame 151 Frame 201 Frame 251 Frame 301 Frame 351 Frame 401 Frame 451 Frame 501 Frame 551 (a)... In PAGE 108: ... A1.15-17 and specific coeffi- cients for different standards are in Table1 . The general YCbCr definition is: (A1.... In PAGE 108: ...18-19)are obtained by normalizing the RGB with intensity I (Wyszecki amp; Stiles 2000): (A1.18) Table1 : Coefficients for two YCbCr standards Standard Red coefficient c1 Green coefficient c2 Blue coefficient c3 Rec.601 0.... ..."
Table 1: CIE 1931 coordinates and cone contrasts of adapting and reference backgrounds. The luminance of all colors was 26.0 cd/m2.
"... In PAGE 4: ... A Photo Research PR 650 spectroradiometer was used to measure the spectra of the red, green and blue phosphors at their maximum intensity setting. The spectra were multiplied with the CIE 1931 color matching functions, as revised by Judd (1951; see Wyszecki amp; Stiles, 1982, Table1 (5.5.... In PAGE 6: ..., 1987) to simultaneously make measurements at all adaptation times during the same experimental session. Here, subjects initially adapted to the reference color, which was one of four colors described in Table1 . After an initial 120 s of adaptation to the reference color, the monitor background and the lamps switched synchronously to the adapting color, which was always opponent to the reference color on the same cardinal axis.... In PAGE 6: ... In the discrimination experiments the chro- matic contrast of the comparison patch was adjusted with a staircase procedure (Levitt, 1971). The dis- criminated colors were also one of the four chroma- ticities described in Table1 . They were chosen to have maximal thresholds when adapted to the refer- ence colors and minimal when adapted to the adapt- ing color.... In PAGE 9: ... Thresholds and achromatic loci were determined as above for the slow phase. The chromaticities of adapting back- ground and reference background also were the same as in the previous experiments, described in Table1 . For brevity, we constrained our measure- ments to one color direction on each axis, from green to red, and from blue to yellow.... In PAGE 11: ...5 1.5 Time[s] Slow Adaptation Fast Adaptation AS 80 60 40 20 0 Adaptation [% total] 100 Figure 8: Full time course of adap- tation of chromatic discrimination for a single observer (AS) for adap- tation from green to red, as described in Table1 . On the x-axis the time after switching from refer- ence background to adapting back- ground (adaptation time) is plotted.... ..."
