Major releases are announced on the Imatest main page. Compare them with scanned prints from your own printer. Determine the capabilities of printers and papers using downloaded ICC profiles. Learn how working color space affects print quality. See precisely how gamut mapping affects colors. Gamutvision is a standalone program (sold separately from Imatest) for exploring the behavior of color management, gamut mapping, and rendering intents, incorporating Print Test. Both bitmap and Scalable Vector Graphics (SVG) charts, which can be printed any size without loss of quality, are available.Ĭoncise instructions for testing lenses using Imatest SFR. Numerous options are available, including contrast ratio, highlight color, and sine or bar pattern (for certain charts).
PTLENS VS DXO VIEWPOINT SOFTWARE
Several patterns can be used for observing aliasing, Color Moire, detail lost to software noise reduction, and other phenomena. Charts include SFR slanted-edge images, star charts, patterns with varying spatial frequency and contrast, and zone plates. Test Charts creates image files for printing test charts on high quality inkjet printers. A version of Print Test with additional capabilities is included in Gamutvision. Print Test measures the quality (color response, color gamut, tonal response, and Dmax) of printers, inks, paper, ICC profiles, and rendering intents. It currently supports the standard 24-patch GretagMacbeth TM ColorChecker ® and the IT8.7 in Imatest Studio and Master and the ColorChecker SG, several linear grayscale stepcharts, and patterns of squares arranged on a circle (for analyzing custom "pie" charts) in Imatest Master. It also analyzes grayscale charts for tonal response. Multicharts analyzes several color charts for tonal response and color accuracy using a highly interactive interface. The Dynamic Range postprocesser for Stepchart, measures dynamic range from Stepchart results for several differently-exposed stepchart images.
PTLENS VS DXO VIEWPOINT ISO
It also works with several charts (some ISO standards) from Applied Image. It also measures exposure accuracy and veiling glare (susceptibility to lens flare) with reflection step charts. Tonal response, noise, and dynamic range using grayscale step charts from Kodak (the Q-13/ Q-14), Jessops, or Danes-Picta (Czech Republic), or transmission step wedges Measures a camera's color quality, tonal response, exposure accuracy, and noiseĬolorChecker ®, which is available from Adorama and other sources. These comparisions are far more detailed than comparisions of MTF50 or other summary results. MTF Compare ( Imatest Master only) is a post-processor for Imatest SFR that compares the MTFs of different cameras, lenses, and imaging systems using saved data from CSV files. It can analyze regions as small as 10 x10 pixels. It also analyzes Chromatic Aberration and noise and calculates the Subjective Quality Factor (SQF)- a measurement of how sharp a print of a given size will appear, based on MTF and the eye's Contrast Sensitivity Function ( CSF). Sharpening algorithm allows you to compare digitalĬameras on a fair basis. SFR measures the sharpness of cameras and lenses using a simple slanted-edge target (either the industry-standard ISOġ2233 chart or a target you can print yourself on a high quality
Imatest Master also analyzes Bayer RAW files. Image files can be in any of several standard formats (TIF, high quality JPEG, PNG, etc.).
Imatest consists of several modules, each of which analyzes images of one or more test charts.
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