[Blog Post] MSI at last!

[Jorge_Stolfi]

Why not expose the image in a way that the histogram spans most of the range 0-65535?

I suppose that the extra bits would be mostly noise.  The imaging element and its analog-to-digital converter probably give only 12 bits of data per pixel.  Increasing the light level and/or exposure time would only overexpose most of the mage.

The Spectralon patch is indeed the brightest part of the image, except maybe in the 350 nm UV where its seems that it is only "light gray" and darker than other areas.  And of course it is useless in the transmission images.  (Those apparently lack a reliable "white" reference.  There seems to be some translucent backing that makes even the wormholes non-"white".  And also the lighting is uneven: brightest in the middle of the page, less bright along the left and right sides...)

All the best, --stolfi