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Imatest Documentation Imatest Documentation Image Quality An overview of the key image quality factors and how they are measured by Imatest Sharpness - What is it and how is it measured? Introduction - The Slanted-edge test - Calculation details - Results - Interpreting MTF50 SQF - Subjective Quality Factor Introduction - SQF and MTF - Meaning of SQF - Measuring SQF - The SQF equation - CSF - Links Noise in photographic images Introduction - Appearance - Noise measurements - Noise summary - F-stop noise - The mathematics of noise - Links Sharpening - Why standardized sharpening is needed for comparing cameras Standardized sharpening - Examples Sharpness comparisons - for several digital cameras Introduction - Explanation of results - Tables of results - Interpretation of MTF - Some observations - Links Chromatic Aberration - AKA Color fringing Introduction - Measurement - Demosaicing Veiling glare (Lens flare) Introduction - Target - Measurement - Results - ISO 9358 Color correction matrix Introduction - Math - Multicharts ISO Sensitivity and Exposure Index Introduction - Modules - Equations - RAW files - Related documents Shannon information capacity - information that can pass through a channel without error Meaning - Results - Summary Blur units, MTF, and DXO Analyzer's BxU The Imatest Test Lab - How to build a testing lab Introduction - Hardware - Lighting - Easel - Light measurement - Tripod - Clamps - Putting it together - Targets - Aligning target & camera Imatest Instructions -- General Installation - and getting started Using Imatest RAW files Install - Purchase - Register - Offline registration - Files Running Imatest - multi_read - RAW files - Other controls - Pulldown menus - Figures - .CSV and XML output - Use of Imatest Introduction - Using RAW files - Bayer RAW - dcraw demosaicing - Rawview utility - Generalized Read Raw The Imatest Test Lab - How to build a testing lab Introduction - Hardware - Lighting - Easel - Light measurement - Tripod - Clamps - Putting it together - Targets - Aligning target & camera Troubleshooting - What to do when Imatest doesn't work Installation problems - Problems after install - Missing DLLs - Runtime problems - INI files - Command (DOS) window - Diagnostics runs - Path conflicts Imatest Instructions -- Sharpness modules Using SFR Part 1 - Setting up and photographing SFR targets Slanted-edge test - Print chart - Lighting - Distance - Exposure - Tips - Quality and Distance Using SFR Part 2 - Running Imatest SFR Image file - ROI - Additional input - Equations - Gamma - Warnings - Saving - Repeated runs - Excel CSV output Imatest SFR LCD target Screen Patterns module - Web pattern SFR results: MTF (Sharpness) plot SFR results: - Chromatic Aberration, Noise, and Shannon capacity plot SFR results: Multiple ROI (Region of Interest) plot 2D Summary plot - 1D Summary plot - CSV Output file - Summary explanation - Excel plots Using SFRplus Part 1 - The SFRplus chart: features and how to photograph it Slanted-edge test - Advantages - Obtain chart - Print chart - Lighting - Distance - Exposure - Tips - Quality and Distance Using SFRplus Part 2 - Running Imatest SFRplus Running SFRplus - Rescharts - SFRplus settings windows - Parameters & setup window - Settings & options window - Gamma - Warnings - SFRplus summary 2 of 451
Imatest Documentation Using SFRplus Part 3 - Imatest SFRplus results SFRplus results - Saving - Repeated runs - Excel .CSV (Comma Separated Values) output Using Rescharts - Analysis of resolution-related charts Introduction - Getting started - The Rescharts window - Rescharts modules - Slanted-edge SFR - Log frequency (simple) - Log frequency-contrast Log Frequency - Analysis of log frequency-varying charts Introduction - Photographing, running - Color moire - Output - Pattern - MTF - Comparisons - Calculation details - Nyquist, aliasing Log F-Contrast - Analysis of charts that vary in log frequency and contrast Introduction - Creating, printing - Photographing, running - Output - Pattern - MTF - MTF/contrast contours - MTFnn Star Chart - Analysis of the Siemens star chart Introduction - Creating, photographing, running - Output - MTF - MTFnn, MTFnnP - MTF contours - Equations MTF Compare - Compare MTFs of different cameras and lenses Introduction - Instructions Batchview - Postprocessor for viewing summaries of SFR, SFRplus results Introduction - Preparation - Instructions How to Test Lenses with SFRplus Introduction - Test chart - Photograph - Run SFRplus - Rescharts SFRplus - SFRplus settings - Interpret the results - Batches - Checklist How to Test Lenses with SFR - (old page: Imatest SFRplus recommended) Introduction - Test target - Photograph - Run SFR - Interpret - Checklist Imatest Instructions -- Tone, color, and spatial modules Using Stepchart Photographing the chart - Running Stepchart - Output - Saving - Dynamic range - Algorithm Stepchart: Applied Image and ISO charts Photographing chart - Instructions - Patch order Dynamic Range - Calculate Dynamic Range from several Stepchart images Introduction - Operation - Results - Dynamic Range bkgnd Using Colorcheck What Colorcheck does - Colorchecker colors - Photographing target - Photographing target - Colorchecker reference sources - Output - Saving - Links Colorcheck Appendix - Algorithms and reference formulas Color error formulas - Algorithm - Grayscale and exposure Using Multicharts - Interactive analysis of several test charts Introduction - Getting started - Reference files - The Multicharts window - Displays and options Multicharts Special Charts - Additional charts, including circles arranged on a square Instructions - Patch numbering - Examples Color correction matrix Introduction - Math - Multicharts Using Uniformity (Light Falloff) - Measures light falloff (lens vignetting) and sensor nonuniformity Instructions - Results Uniformity (Light Falloff): Imatest Master - Instructions for Imatest Master Input dialog box - Hot and dead pixels - Color shading - Uniformity profiles - Polynomial fit - Histograms - Noise detail - Spot detection Using Distortion Introduction - Instructions - Results - Main figure - Decentering - Corrected image - Intersection figure - Radius correction fig - Links - Algorithm Imatest Instructions -- Miscellaneous modules and utilities Using Test Charts - Creates test charts for high quality inkjet printers Introduction - Bitmap patterns - SVG patterns - Options Using Screen Patterns - Monitor patterns for Light Falloff, SFR, Distortion, and monitor calibration Introduction - Light Falloff - SFR - Distortion - Monitor calibration - Monitor gamma - Zone plate - SMPTE color bars - Slanted edges - Colorchecker- Stepchart - Squares (checkerboard) SVG Test Charts - Scalable Vector Graphics charts for MTF measurements Introduction: m x n squares - Squares and wedges - Operation - Options - Output figure - Printing View/Rename Files - using EXIF data Starting - 1. Select folder - 2. Select files - 3. Rename options - 4. Preview - 5. Rename files Imatest IT/EXE instructions - Running Imatest IT (Industrial Testing)/EXE Introduction - Installation - Setup - INI files - DOS call - Calling from Matlab - Testing - Error handling Using Print Test - Measure print quality factors: color response, tonal response, and Dmax Introduction - Instructions - Results Maskfill - Removes features that interfere with Imatest measurements 3 of 451
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