Testing spectral imaging processing
Onsite processing in Scotland relied primarily on applying principal component analysis (PCA) to the raw image sets. Experimentation began with this technique from the earliest initial imaging phase. The image is from October 2009, and shows the low-resolution, "raw" and processed PCA spectral images. The PCA technique uses combinations of an original set of images to construct an equivalent set of images ordered by statistical variance. Images from diary page DLC 297b/160, held at the David Livingstone Centre, Blantyre, Scotland.