Oldal 128 [128]
OCR
post-processing. —_————. linear 10) The “linear” tab converts the images to linear light (XYZ) using the embedded ICC profile and applies a flat-field correction to the images (if an image of a uniform reflective board under the same experimental conditions for flat-fielding is available and the option is checked). It also generates monochrome images based on the output from a single channel for the images where this is required. For more details, refer to the workflows for the correction of image sets in the sections below. Í 4 a] | markup 11) The “markup” tab straightens and extracts the Macbeth chart from the linearized, flat-field corrected VIS image to be used for Calibration. It also marks the position of the Spectralon diffuse reflectance grey scale or any number of Spectralon diffuse reflectance standards as available. Ec 5 | viscalib | 12) The “viscalib” tab (visible-light calibration) generates the colour Calibration matrix from the extracted Macbeth chart and sets the brightness (luminance) of the image from the Macbeth chart greyscale. It then applies the colour calibration to the VIS image to be calibrated (based on the calibration matrix generated from the Macbeth chart). | Uvicalib | 13) The “uvicalib” (UV-induced Luminescence calibration) tab applies the camera calibration and the white-point adjustment to the UVL image. For more details, refer to the workflows for the correction of UVL image sets in section iii below. align 14) The “align” tab carries out the registration (rotation and scaling) of two images to ensure that these are overlapped. specden | 15) The “specden” tab (spectral density) corrects for spectral density in the IRR and/or UVR images by comparing this to a calibrated VIS image. For more details, refer to the workflows for the correction of IRR/UVR image sets in section ii below. c 5 | falsecolour | 16) The “falsecolour”’ tab generates the IRR and/or UVR falsecolour images. For more details, refer to the workflows for the correction of IRR/UVR image sets in section ii below. ri uvistray | 17) The “uvistray”’ tab (UV-induced Luminescence Stray light) removes ambient stray radiation from the UVL image. For more details, refer to the workflows for the correction of UVL image sets in section iii below. Version No. 1.0 120 Date : 14/10/2013 kanal
