Image
capture of herbarium specimens at COI uses either
HERBSCAN, with an inverted scanner using 600ppp. File Format: TIFF image file. The resulting file sizes
are of 200MB for sheets 11x17in.
Digital camera in light tent. Resolution: 72 dpi; Dimension: 4672 x 3104 pixels; Colour Space: Adobe RGB (1998); Colour Depth: 24-bit ;
File Format: JPEG image file. The resulting file sizes
are c. 10MB.
In both cases the specimens are digitized with the (i) specimen barcode,
(ii) measurement scale, (iii) Colour & Gray Scale Targets. The image file
names are the barcode(s) of the specimen(s).