imatest Studio imatest Studio

 详细介绍

Imatest是美国Imatest LCC公司开发的专业数码影响评测软件，涵盖了MTF、SQF、SFR 、色彩还原、杂讯、动态范围等图像指标测试，兼用于数码相机、打印机、扫描仪等进行完整测试内容。软件系统建立于的工程数学运算平台Matalab，具有相当高的可靠性，制图内容相当有深度。

 功能描述

Imatest Studio has all the measurements the individual photo enthusiast needs to test his or her cameras or lenses. It contains many of Imatest Master’s sophisticated features while remaining an affordable choice for individual photographers.

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Imatest™ version comparison
Module	Studio	Master  (includes all features of Studio)
	Everything an individual photographer needs to test cameras, lenses, and printers.	The full-featured version for professionals and imaging system developers.
SFR	Edge, MTF (SFR), and Chromatic aberration analysis	Batch runs (multiple input files); MTF calculated for any edge angle; edge and MTF display for R, G, and B channels in addition to Y
Colorcheck	Tonal response and noise analyses for B&W patches; La*b* color error and Color analysis	Batch runs (multiple input files); User-supplied reference files; noise analysis for R, G, B, C, M, and Y patches; noise spectrum
Stepchart	Tonal response, noise, dynamic range analysis, and veiling glare	Batch runs (multiple input files); density values can be read from a file; tonal response for separate R, G, B, Y channels (in figure 3); analyzes the Applied Image QA-61 (ISO-16067-1), QA-62, ST-51 (EIA grayscale), ST-52 (ISO-14524) 12-patch OECF chart, 20-patch OECF charts, and the ISO-15739 (Noise) chart.
Light Falloff	Light falloff (luminance channel) displayed in normalized pixel levels and f-stops	Batch runs (multiple input files); Light falloff for R, G, and B channels; histograms for R, G, and B channels; display dead and hot pixels; color shading (sensor nonuniformity); noise detail
Print Test	Print tonal response and gamut in La*b* and xyY spaces	Print gamut in HSL representation
Test Charts	SFR Quadrants, SFR rectangles, Grid (for Distortion)	Star, Log-frequency contrast/gradient, Zone plate, Scalable Vector Graphics (SVG) charts
Distortion	Calculate distortion for 3rd and 5th order polynomial and tan/arctan approximations.	Batch runs (multiple input files); Lens decentering; Intersection point plot; Corrected image display
Multicharts	Analyzes the 24-patch Colorchecker and the IT8.7. Highly interactive.	Includes the Colorchecker SG, Grayscale step charts, and Special Charts (squares arranged on a circle and several Applied Image and ISO charts). Calculates Color correction matrix.
MTF Compare	(Master only)<