Page 165 [165]
OCR
A= visible illuminant colour temperature 3% |v |B- apply camera calibration and white-point adjustment x CIA |macbeth illuminant colour temperature: (5000 S—G— | B1 | viscalb.08 | 22 | linear. 316 Es v 83 | label | UV-induced visible luminescence targets_label | UV-induced visible luminescence with calibration targets, colour-calibrated la ís targets object label ] UV-induced visible luminescence of object, colour-calibrated ) S object 4 Colour_convert_item.XYZ_item.action A2 als | 4 | target colour temperature — nip2 neutral is D65 _ Catt AS viscalib.Apply. calib B1 82 €186] | label) Uv-induced visible luminescence iS space [Colour space: | Lab s] 2) colour | Colour value: (50, 0, 0] Colour_new_item.Widget_colour_item.action 46 <> Apply_ct A9 B3 Sto convert wo: [xyz Ta Colour. convert, item.XYZ. item. action AS 147 | 2.71464 [as calculated white-point adjustment to get to D6S ar d b) Bsmt] BBG) — ioc cat [d wna. [/d6szos [fá seater (B]UM wer. (Ginter. [500770 [a BIO SG ons Figure 3-66 lo) x!) (1239, 57) 2.28478 2.48976 4.50653 Magnification 1:3 Figure 3-67 13) The sRGB (or RGB16) colour calibrated UVL images can be viewed and saved in the “results” tab (See later). Image registration: aligning the calibrated VIS and UVL images. 14) Click on the “align” tab and scroll right. Column A registers the VIS and the UVL images (Figure 3-68). 15) Two sets of images are observed to allow the independent registration of the Spectralon diffuse reflectance standards in the images containing these (A2) and the images themselves (A3). This allows greater flexibility in order to address various scenarios: (a) Where the images used for calibration are the same images to be calibrated and no alteration in the position of the standards has occurred in the VIS vs. the UVL images (as in Figure 3-68). This would be the expected situation in a studio setting; (b) As above but some alteration in the position of the standards has occurred in the VIS vs. UVL images; Version No. 1.0 157 Date : 14/10/2013
