dtourolle
44fdcbc6f7
fixtures/pano/2025-08-05: _MG_8320 … 8331, one portrait hand-held sweep at 50 mm with a stop of shutter drift and sky in every frame — the set §3.11 is built against, with each of those facts named as the test it is. fixtures/** is tracked in LFS like the models but with the opposite default: CI's pulls exclude it, so a build never fetches 325 MB it does not use.
31 lines
1.6 KiBLFS
Markdown
31 lines
1.6 KiBLFS
Markdown
# Fixtures — real camera files for tests
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Photographs, in LFS, for the tests that need a camera's actual output rather
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than a synthetic frame. Everything under this directory is a pointer in an
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ordinary checkout; `git lfs pull --include="fixtures/**"` fetches the files,
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and CI's pulls exclude the directory so a build never pays for them.
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The photographs are the author's. They are here to test this project and for
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nothing else.
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## `pano/2025-08-05` — a twelve-frame panorama
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`_MG_8320.CR2` … `_MG_8331.CR2`, Canon EOS 6D, EF 24-70mm f/4L IS USM at
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50 mm, f/22, ISO 400, 2025-08-05 12:57:44–58. One hand-held sweep across an
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alpine valley in fourteen seconds, **portrait orientation**, aperture
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priority — so the shutter drifts from 1/80 s to 1/160 s across the set, one
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stop of exposure difference between the ends. Sky in every frame.
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That is the set §3.11 is built against, and each of those facts is a test:
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| Fact | Exercises |
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|---|---|
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| Portrait, `Orientation = 6` | The stitcher applies orientation before alignment (panorama.md §8) |
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| A stop of drift in shutter speed | Gain compensation, and that camera-space values (FR-MRG-2) align across it |
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| Sky over a third of each frame | Keypoints on texture-free overlap — the case a learned detector is for (FR-MRG-8) |
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| Hand-held | Small parallax on the near slope; seam placement rather than a translation solve |
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| Twelve frames, 5472 × 3648 | An output wider than any texture (FR-MRG-11), and NFR-MRG-1's timing |
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Frame 8320 is the first source: the composite carries its body, matrices and
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as-shot neutral (FR-MRG-3).
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