2015 Imatest™  / GAIN Training Course/ Seminar

Day 1

Part 1: Imatest introduction

• Background/history
• Product lineup
• Basic image concepts
• Sharpness introduction
• Raw files & raw conversion
• Image quality factors

Part 2:

• SFRplus demo
• The key module that measures a great many image quality factors
• Test Lab Construction
• Settings stored in imatest.ini, used for controlling I
• Summary of modules

Part 3:

• Common operations (workflow details)
  • File selection
  • Region (ROI) selection
  • Dialog boxes
  • Saving results
• Stepchart
  • Veiling glare
• Dynamic range
  • Measured in Stepchart (transmissive target)
  • Post-processor (several reflective images)

Part 4:

• Colorcheck – measures 24-patch X-Rite Colorchecker
• Multicharts – measures several standard color charts
• Distortion
• Uniformity (Light Falloff and Uniformity-Interactive)
• Blemish Detect

Day 2

Part 5: Sharpness measurements

• SFR (Slanted-edge Spatial Frequency Response)
• Batchview
• MTF Compare Transfer functions & deconvolution
• Sharpening – Introduction and Standardized sharpening
• Slanted-edge algorithm – ISO-12233 and enhancements
• SQF – Subjective Quality Factor (Acutance)

Part 6: Rescharts – Interface for interactive sharpness measurements

• SFR & SFRplus
• Star Chart (Siemens Star)
• Log Frequency
• Log F-Contrast
• Wedge
• Random – Dead leaves / Spilled coins (scale-invariant)
• Any scene sharpness

Part 7: Imatest IT (Industrial Testing)

• EXE and DLL interfaces
• Performance enhancement
• Manufacturing test setup – preventing darkness and saturation
• Pass/fail spec INI configuration
• Parsing of outputs using JSON

Photo: 2014 Imatest_Gain Seminar, Taipei