Imatest ™ Stepchart analyzes the tonal response, noise, and dynamic range of reflection step charts such as the Kodak Q and Q Gray Scales (below. Imatest™ Test Charts creates test chart files that can be printed on high quality inkjet printers. A great These include step charts (the Kodak Q / Q , etc.). I recently faced the impossible task to identify outliers in a dataset with very, very small sample sizes and Dixon's Q test caught my attention. Criticism · Method · Implementation. Why print your own? Leave a Reply Cancel reply Your email address will not be published. Charts are designed to fit on letter-size 8. Results are more detailed than those provided by Colorcheck. Freeman, c Library of Congress [ permanent dead link ]. By Andale May 24, Statistics How To 1 Comment. Chart patterns Charts are designed to fit on letter-size 8. See Noise in photographic images for a detailed explanation of noise. You can either buy test charts or print your own. Several features resemble the Koren test chart described in Lens testing pre- Imatest. Dynamic range The new Dynamic Range module calculates dynamic range from several reflective stepchart images, which are easier to work with than transmission step charts. Software noise reduction cannot distinguish noise from high spatial frequency low contrast detail, located in the lower right of the 1 and 2-band charts.