Scanners differentiate typically from 16 to 256 gray levels, and high-resolution gray scale is widely used for medical x-rays. At a resolution of 300 dpi, each square inch comprises 90K pixels ...

On darker skin tones, scalp psoriasis may have purple undertones with gray scaling. (Photo Credit: Richard Usatine) Scalp psoriasis happens when your immune system mistakenly attacks your skin cells.

Background: Hepatoblastoma (HBL) and hepatocellular carcinoma (HCC) are respectively the first and the second most common pediatric malignant liver tumors. The purpose of this study was to ...