Lumenby theMnexus
Lumen's result on a real room: the interior and the garden outside the window in one image, window frames vertical
Empa HDR database, scene FORTH3, CC BY 4.0. Blue lines: vertical edges OpenCV found in this result.

Seven exposures in. One true room out.

Lumen merges each room's brackets, takes the window from the dark frames and stands the walls up. OpenCV 5 only: nothing is painted in or out.

  1. Exposure −3 EV: only the window shows−3
  2. Exposure −1 EV−1
  3. Exposure 0 EV0
  4. Exposure +1 EV+1
  5. Exposure +3 EV: the room shows, the window is white+3 EV

Upload your brackets See every result and number

Project
Lumen, by theMnexus
Sheet
A-100, process photos
Drawn by
OpenCV 5.0, no generative model
Checked by
the agent, then you
Runs on
AWS Lambda arm64 + S3
Issued
–

Process your brackets

Processing options

A step you turn off is still listed in the agent's revisions, marked “off”.

Download test brackets 44 MB of real Empa and Cambridge brackets, CC BY 4.0. For a Cambridge folder, turn on “All photos are one room”.

What happens to each room, in order, and where it is measured
StepWhat OpenCV doesEvidence
GroupSplits the upload into rooms by capture time, exposure and scene matchSynthetic sets
AlignWarps every frame onto the middle one; the residual is measured per tileAlignment error
MergeExposure fusion; anything that moved is taken from one frame onlyReal motion
WindowFills a blown window from the darker frames; refused if it adds edges no frame recordedReal rooms
LensFits barrel distortion k1 so long edges become straightLimits
TiltStands the verticals up from their vanishing pointReal rooms