... Part Indicator,Tissue Equalization,Filter Correction,Grayscale Transform,Window/Level Adjustment,Gamma Correction,ROI Equalization,Black/White Reversion, ... Standard Compatible Upgrading RequirementAngell-DR is suitable for digital upgrading of traditional screen/film x-ray imaging ... requirement is an X-ray generator or digital gastroenterography with high frequency and high voltage above 30kw,200mA ...