Multi Spectral Leaf (IMAGE) National Physical Laboratory Caption The image is a leaf. Each of the small images shows the amount of light reflected by the leaf at different wavelengths in the red region of the visible spectrum (bright areas are regions of high reflectance). These images reveal details that cannot be observed by eye and could be used, for example, to detect early signs of plant disease. This image was produced using an Image Replication Imaging Spectrometer (IRIS). IRIS allows information about the spatial and spectral characteristics of an object to be captured in a single snapshot, thus providing more information about an object than conventional imaging techniques. The images captured by IRIS contain eight replicated images of the same object, each of which is for a separate spectral pass-band. This type of multi-spectral, spatially-resolved information is necessary for the complete characterisation of any material or object which shows variations in colour or appearance over its surface (e.g. wood, stone, cosmetics, textiles, packaging materials, hair and skin). The IRIS system can be tuned to specific pass-bands in order to capture salient information for each particular application. Credit Agnieszka Bialek, National Physical Laboratory Usage Restrictions Crown Copyright, credited to the National Physical Laboratory License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.