Stranica 127 [127]
OCR
Bc BR 7 Navigating the workspace 9) The "input" tab allows the images to be post-processed, together with any associated images reguired (e.g. for flat-field correction) to be added into the workspace. imput (a) There are 5 columns for the input of images under this tab: "visible light reflectance" (column A), "IR reflectance" (column E), "UV reflectance" (column F), "UV-induced visible luminescence" (column G) and “visible-induced IR luminescence” (column H). Each column has four separate boxes. The top two containing the image to be used to generate the calibration and the associated flat-field image (if available) and lower two containing the image to be calibrated and the associated flat-field image (if available). These two sets can be the same (and are automatically entered as such) or another frame (e.g. a "twin" image not containing the calibration targets, as described in Chapter 2) taken with the same camera and under the same lighting conditions can be added to the lower set of images. For more details, refer to the workflows for the correction of image sets in the sections below. If processing a complete multispectral image set, the relevant images can be uploaded all at once or at the start of the workflow for each particular frame. It must however be kept in mind that the results from some workflows may be required in order to complete others. Not all the columns must be filled, only those required to complete the workflows of interest. At minimum only a visible-reflected image (including Macbeth chart for colour calibration) is required. (b) B F:\Technical Imaging\John Cupitt\zip files\bm2\bm-workspaces2.ws - input a x File Edit View Tookits Help input | linear markup ; viscalb uvicalib align | specden falsecolour uvistray | uvikm | vilstray ! vilkm results + [va = visible-light reflectance x A v Vw E- IRreflectance A2 label | visible reflectance s A v _ label } TR reflectance 3) targets label | visible reflectance with calibration targets E label | IR reflectance with calibration targets pflectance with calibration targets image >| use, fiatfield | (I Flatfield IR reflectance with calibration targets ima A v | flat __ TOVA flatfield @ | Recalculate dinteg d B J Pair_flatfie Reset Pair_flatfield NULL (label ++ " with calibration targets") image <> <> S) object | | 1 vette S| object label | IR reflectance of abject use_flatfield | () Flatfield visible reflectance of object image Le as Pair_flatfield (targets.image) (label ++ " of object") Pair_load “visible reflectance" A Si image use_flatfield CO Flatfield IR reflectance of object image I = Se Pair_flatfield (targets. image) (label ++ " of object") A v a v flatfield Pair. load "IR reflectance" (d) I- save output images as 16-bits? Vo F- UVreflectance —— {i — 13] Typical input image S| F2 label | UV reflectance a Al, fi v v targets A v eS Bstert| 6G 0] [Ő] inbox... | 9 Forman... [38 unsave.. | (W] chapter... [dd F:ATech... (P]VIS wor... | Se Mydocu... | [Seaich Desk Figure 3-18 label | UV reflectance with calibration targets image li SU, O SG i132 To input the images, either drag them into the appropriate slot or left-click on the thumbnail, click “Replace From File’, and select the image required (Figure 3-18). For more details, refer to the workflows for the correction of image sets in the sections below. 119 Date : 14/10/2013
