Release Notes

2016.06 Release:

Release date: 6/6/2016

Bug Fixes:

  • When using custom source spectrum, the source spectrum normalization was corrected which fixes an SNR calculation error under these conditions


  • The system spectrum units were changed to watts instead of photon flux



2016.05 Release:

Release date: 6/2/2016

Auto Updater:

  • Imager will now check for new updates and notify you when a new version is available
  • There is no longer a need to uninstall Imager, when a new version is available, Imager will apply the update without requiring the manual uninstallation of the previous version
  • All previous license information is retained, so there is no need to reenter license information after the software has updated

Save Output Image in HDR format:

  • There is now an option to save the simulated image in HDR format.  This allows saving imagery from high bit depth simulations
  • Saving to the HDR format is available both in the application and in the command line interface

Switch between illuminance and irradiance:

  • The illumination level can now be entered either in illuminance or in irradiance.  The addition of irradiance improves the modeling for sources that emit outside of the visible spectrum (e.g. NIR LEDs)

Copy on Plots

  • In addition to being able to copy analysis plot data, and save a figure as an image, there is now an option to copy a figure as an image

Updated licensing to enable monthly subscriptions

  • The licensing in Imager has been improved to support monthly subscriptions

Bug fixes and other minor improvements



2016.04 Release:

Release date: 5/5/2016

Support for High Dynamic Range Scenes:

  • Imager now supports both RGBE and single part OpenEXR high dynamic range formats.
  • You can now simulate scenes with bright reflections and dark shadows in order to understand the tradeoffs between different HDR image capture strategies.

Improved Plotting Functionality:

  • From the analysis plots you can now:
    • Save the plot as an image
    • Copy the data
    • Show/Hide the legend
    • Zoom
    • Hover over data and see data values


  • The help now opens in your browser, freeing up screen space within the application and allowing you to more easily toggle between help and the application
  • Equations and more detailed descriptions have been added to the metrics section of the help.
  • Tips of the day have been added and are shown at startup


  • Undo/Redo has been improved when working with custom data editors

Bug fixes and other minor improvements



2016.03 Release:

Release date: 3/18/2016

Batch Processing:

  • Imager’s command line API allows you to set up a camera model and simulate an image from your preferred programming language. With this flexible interface you can create data sets, videos, and model dynamic components like autofocus. Click here for more information – Command Line API 

Speed and Performance Improvements:

  • Simulation speed improved by 30%
  • Memory usage reduced by 75% for machines with small amounts of RAM

Object Tilt:

  • The object can now be tilted relative to the lens.


  • An improved version of the ISO 12233 chart is included. For more information on the chart click here.

Improved data interpolation:

  • The interpolation has been greatly improved for custom distortion, relative illumination, chief ray angle, axial color, lateral color, and sensor peak chief ray angle.
  • The improved interpolation address the large swings between points that were sometimes seen when data was copied form some 3rd party applications.

Usability improvements:

  • The scene loader has been improved so you can see previews of the scenes before loading them into Imager.
  • Imager asks if you want to save your system when you exit if you haven’t saved it already.
  • Indicators alert you if auto focus, auto exposure, or auto gain are turned on and are included on the Image toolbar.
  • Parameter limits are shown in the System Assistant.
  • Reference wavelengths are plotted on the chromatic aberration plots.

Metrics and Analysis:

  • The metrics and simulation were improved to include the effect of moving the object closer to the camera which slightly influences the FOV and the SNR.
  • The depth of field and hyperfocal distance metrics were updated to make them consistent with what is commonly used in the consumer electronics industry. The hyperfocal distance is now calculated as (EFL*EPD)/(2*pixel_pitch).
  • MTF calculation improvements for systems with large lateral color.

Numerous bug fixes and other minor improvements



2016.01 Release:

Release date: 1/22/2016

Improved control with custom curve generation for the following camera model parameters:

  • Source Spectrum
  • Lens Transmission
  • IR cut filter transmission
  • Relative Illumination
  • Distortion
  • Axial Color
  • Lateral Color
  • Lens CRA
  • Sensor Peak CRA
  • Sensor QE
  • Object Spectrum

MTF Tuner:

  • The MTF tuner allows the user to degrade the MTF both on and off-axis using intuitive sliders rather than aberration coefficients.

Module level tolerances:

  • Sensor decenter – The sensor can be decentered relative to the lens.
  • Sensor tilt – The sensor can be tilted relative to the lens.

Camera Gain:

  • A specific gain value can be set or if auto gain is enabled a maximum gain can be set.

Improved data entry:

  • In data entry tables, excel like behavior has been implemented.
  • Icons have been added to the data entry table to allow cut, copy, and paste.

Context image:

  • Within the simulation window toolbar, an icon has been added to turn the context image simulation on/off.

Numerous bug fixes and improvements



2015.12 Release:

Release date: 12/14/2015

Speed and Performance improvements:

  • Instant Metrics and Analysis – The metrics and analysis plots are updated immediately once the system parameters are changed.
  • Quicker simulations – The simulation restarts whenever a parameter is changed. This reduces the time it takes to get a simulated image when changing multiple parameters.
  • Preview Image – A preview image is provided for rapidly positioning objects in the field of view, adjusting the field of view, and selecting regions of interest when simulating large images.
  • Region of Interest (ROI) – For large, complex image simulations an ROI updates sooner than the full image. The ROI more rapidly shows the impact of changing parameters within a user designated field of view or at an object feature of interest.

Additional Functionality:

  • Simulation window toolbar – additional features include:
    • Continuous image zoom/scaling
    • Select or turn ROI processing on/off
    • Save the simulated image
    • Simulation progress indicator
    • Help for the simulation window – select the help icon – Index – Simulation View to access the simulation window help

Mac OS X:

  • The current version is signed and has a more streamlined installation process

Numerous bug fixes and improvements



2015.11 Release:

Release date: 11/13/2015

System Spectrum:

  • In the spectrum plot we have included the overall system spectrum for each of the color channels if a color sensor is selected, or a single plot for monochrome sensors. This will allow you to visually see the system spectrum for each of the channels based on the source, lens transmission, color filter array transmission, and sensor QE.

Color Filter Array Data Entry:

  • You can now input custom color filter arrays. Go to Sensor – CFA Transmission – select custom from the drop down list and click on the editor icon to access the editor. From the editor if you click on the help icon (?) it will bring up a brief tutorial on how to use this feature.

Silicon QE:

  • We updated the silicon QE curve to be more representative of CMOS image sensors. The curve is based off of the average response from a few of the top CMOS image sensor manufacturers.