Digitized NHANES II X-ray Films
The 17,000 NHANES images are available in the following formats:

jpg - full spatial resolution and 8-bit grayscale
jpgahe – jpg with adaptive histogram equalization (AHE)
jpgaheus - jpg with adaptive histogram equalization (AHE) followed by unsharp masking
tif8 - full spatial resolution and 8-bit grayscale resolution …