grayscale test chart

The 11-Step Grayscale Card The 11-step grayscale card is a professional imaging testing tool primarily used to evaluate the grayscale reproduction capability of cameras. It assesses the fineness of the image's light and dark levels through 11 different brightness levels ranging from pure white to pure black. The common NHK standard gamma value is 0.45. It can also be equipped with blue, yellow, and red color blocks to assist in testing color saturation. 1. Core specifications

ISO 12233:2017 eSFR Enhanced Edition The Imatest enhanced version ISO 12233:2017 eSFR test card has all the functions of the ISO 12233 standard test card, maintaining a 3:2 aspect ratio, adding six tilted squares for measuring performance near image boundaries, and adding hyperbolic wedges for visual analysis or analysis using the eSFR ISO module. When generated using color supported technology, it also includes 16 color blocks. As these additional items are located in areas

ISO 12233 Standard Test Card 2000 Line The core basis of the ISO12233 resolution test card is the international standard ISO 12233:2000 "Photography - Electronic still image cameras - Resolution measurement", which unifies the resolution measurement methods and judgment specifications for static electronic imaging equipment, and solves the industry Challenge of the lack of interoperability and comparability of resolution detection data in different devices and scenarios.