Oldal 132 [132]
OCR
cn A B 7 2) Images are opened by dragging them into the appropriate slot or by left-clicking on the thumbnail, clicking “Replace From File”, and selecting the image required. (a) Load an image containing the calibration “7 \lectnical Imaging| bn Cp fsb borhan targets into the top box on the ‘targets” input | tinear1 | markup1 | viscalb1 ) uvicalib1 , align1 specden1_ falsecolour1 | uvistray1 | uvkmt thumbnail (Figure 3-21). This image will © A> Viele igherehectnce "3 be used to generate the calibration and C[a2| [label | visbie refectance can be the image you want to calibrate oD — densidad . . e image or another image taken with the same Camera and under the same lighting STT vata we caer eee a conditions. It can remain in place for C) fate batch-processing (see later) as long as the camera or lighting conditions remain Pair_flatfield NULL (label ++ " with calibration targets") € object label | visible reflectance of object (b) If available, load an image of a uniform ~ [use fatiot!) © Flatfeki visble reflectance of object Image) : S| flatfield reflective board (under the same : experimental conditions of the top - : . . . . Pair_flatfield (targets.image) (label ++ " of object") image) for flat fielding into the bottom | Par Joad "visble reflectance" box on the “targets” thumbnail and Figure 3-21 check the option to "Flatfield visible reflectance with calibration targets image" (Figure 3-21). If this is not available leave this option unchecked. (c) Load the image(s) you want to calibrate into the top box on the “object” Ú *F:\ Technical Imaging\ John Cupitt\zip files\\bm2\bm-workspaces2.ws - input 1 Eile Edit View Toolkits Help thumbnail (Figure 3-22). This can be the Frew | near | marty viscalib1 | uvicalib1 align | specden1 ) falsecolour1 uvistrayl | uvikm1 same image as above or another frame 3 A> vloble-ightrefctance x (e.g. another frame in a series or a “twin” = * | nll Sea image not containing the calibration ve .— targets, as described in Chapter 2 and shown in Figure 3-23) taken with the 0/ use_flatfield | 7] Flatfield visible reflectance with calibration targets image Same camera and under the same |" iit lighting conditions. Pair_flatfield NULL (label ++ " with calibration targets") Ci object label | visible reflectance of object (d) If available, load an image of a uniform 2 mage reflective board under the same experimental conditions of the image for ~ | wee ott [d Ftot vob refectanee of pect na flat fielding into the bottom box on the . 7 Ag, IR "object" thumbnail (Figure 3-22) and par fatotd (ure mage) (bel ert " otobjact) check the option to “Flatfield visible ( ) Parr. Jozd "visible reflectance” reflectance of object image". If this is not Figure 3-22 available leave this option unchecked (as in Figure 3-23). Version No. 1.0 124 Date : 14/10/2013
