Cut panorama overlaps along seams instead of averaging them

The merge weighted every overlap pixel by its distance from each frame's
edge, a 200 px linear cross-fade. Anything the frames disagreed on —
parallax in the near foreground, grass in the wind, a walker — came out
twice at half strength: a soft double edge at 1:1.

dr_pano::seam picks, per output texel at proxy resolution, which frame a
pixel comes from. Where a new frame overlaps the composite the cost is the
gain-corrected difference plus local detail plus nearness to either
frame's edge, taken as the worst over a small window, and the cut is a
dynamic-programming path across the overlap. merge.wgsl weights each frame
by its tent-filtered share of that map, a 64 px blend that follows the
seam, with the edge feather kept as the fallback. The page's preview uses
the same map, and examples/merge.rs takes --feather-only for comparison.

docs/dev/panorama.md

@@ -367,7 +367,7 @@ Built, on branch `merge/panorama`, in the order §10 gave:
 | The camera-space tap | `OutputMode::CameraLinear`, `AdjustPass::render_camera_linear` | Done, `rgba32float`, tiles by view rect |
 | Linear DNG writer, streamed | `dr_export::write_linear_dng` | Done; rawler reads it back |
 | A three-sample `RawImage` re-entering the pipeline | `dr-decode`, `DemosaicedImage::from_linear_rgb16` | Done |
-| Warp, accumulate, resolve, chunk by chunk | `dr_gpu::MergePass`, `merge.wgsl` | Done; feathered blend, scalar gain |
+| Warp, accumulate, resolve, chunk by chunk | `dr_gpu::MergePass`, `merge.wgsl` | Done; seams (§11.1) over a feather, scalar gain |
 | The job: load, proxies, align, gains, confirm, merge, provenance | `dr_ui::merge` | Done; `examples/merge.rs` drives it headless |
 | The page: table, preview, projection, Merge/Stop/Back; the grid's button | `merge.slint`, `merge_ui.rs` | Done; `DARKROOM_START_MERGE=a.CR2,b.CR2` lands on it |
 | Placement beside the sources through the outbox, rescan | `merge_ui.rs` | Done, untested against a server |
@@ -385,9 +385,11 @@ half.
    the file carries the black border. The largest inscribed rectangle over
    the coverage, then the DNG's `DefaultCropOrigin`/`DefaultCropSize`, so
    nothing is thrown away and the develop view opens on the picture.
-2. **Seams and the pyramid** (§10 step 5). The feather hides exposure and
-   small misalignment; parallax on the near slope will show as a soft
-   double edge at 1:1.
+2. **The pyramid** (§10 step 5). Seams landed 2026-09-30 (§11.1); the
+   blend across them is one width for every frequency, so an exposure step
+   the gains leave is narrowed to the seam's 64 px rather than hidden over
+   the old 200. A Laplacian pyramid would blend low frequencies wide and
+   detail narrow.
 3. **Vignetting in the tap.** The lens profile's distortion is applied
    before the fetch; its vignetting is an operation and is not. Frame edges
    are darker than their centres by the lens's falloff, and the feather
@@ -402,6 +404,35 @@ half.
    catalog's `content_hash` is null for most images most of the time. The
    hash can join it when the catalog has one.
 
+### 11.1 Seams — 2026-09-30
+
+The feather averaged every overlap over 200 px, so anything the frames
+disagreed on — parallax on the near slope, a walker, wind in a branch — came
+out twice at half strength: a soft double edge at 1:1, reported as a glitch.
+
+`dr_pano::seam` now chooses, per output texel at proxy resolution, which
+frame it is taken from. Frames are laid down nearest-first; where a new one
+overlaps the composite, each texel costs the gain-corrected difference
+between the two, plus the detail either has there, plus nearness to either
+frame's edge (vignetting, the lens correction's fringe), taken as the
+**worst** over a 4-texel window so the path stays a blend radius clear of a
+difference rather than grazing it. The cut is a dynamic-programming path
+across the overlap, perpendicular to the line from the composite's frames to
+the new one: §4's per-column seam, not a graph cut. The map is computed per
+projection, for the page's preview and again for the merge.
+
+`merge.wgsl` weights a frame by its tent-filtered share of the label map
+about each pixel (`SeamMap::share`, repeated verbatim), over a window
+`seam_blend_px` wide (64, capped at 4 texels either side). The edge feather
+remains underneath as a factor and, with a 1e-4 floor, as the answer where
+the map names no frame that reaches the pixel. `--feather-only` on
+`examples/merge.rs` merges the old way, for comparison.
+
+Known limits: one axis per new frame, so in a multi-row set a frame
+overlapping its left neighbour and the row above is cut along a compromise
+direction; the cost reads grey proxies, so a difference in hue alone is
+invisible to it.
+
 ## 12. Filling the border instead of cropping it — MI-GAN, read and measured 2026-09-19
 
 Raised after the first merges: the ragged border a cylinder leaves could be

docs/dev/traceability.md

@@ -9,8 +9,8 @@ Denominators are parsed from [`requirements.md`](requirements.md) at run time, n
 
 | Metric | Value |
 |---|---|
-| Source files scanned | 479 |
-| TRACES tags found | 1983 |
+| Source files scanned | 480 |
+| TRACES tags found | 1984 |
 | Requirements defined | 193 |
 | Requirements deferred (post-v1) | 24 |
 | Requirements covered | 165 |
@@ -109,13 +109,13 @@ _None._
 | FR-EXP-9 | [`core/dr-decode/src/lib.rs:537`](../../core/dr-decode/src/lib.rs#L537), [`core/dr-export/src/lib.rs:132`](../../core/dr-export/src/lib.rs#L132), [`core/dr-export/src/lib.rs:1`](../../core/dr-export/src/lib.rs#L1), [`core/dr-gpu/src/adjust.rs:1491`](../../core/dr-gpu/src/adjust.rs#L1491), [`ui/dr-ui/examples/face_native.rs:1`](../../ui/dr-ui/examples/face_native.rs#L1), [`ui/dr-ui/src/decoder_seam.rs:255`](../../ui/dr-ui/src/decoder_seam.rs#L255), [`ui/dr-ui/src/develop/mask_ops.rs:1130`](../../ui/dr-ui/src/develop/mask_ops.rs#L1130), [`ui/dr-ui/src/develop/render.rs:671`](../../ui/dr-ui/src/develop/render.rs#L671), [`ui/dr-ui/src/develop/render.rs:709`](../../ui/dr-ui/src/develop/render.rs#L709), [`ui/dr-ui/src/lib.rs:654`](../../ui/dr-ui/src/lib.rs#L654), [`ui/dr-ui/src/library/sweep.rs:538`](../../ui/dr-ui/src/library/sweep.rs#L538), [`ui/dr-ui/tests/export_ignores_the_viewport.rs:1`](../../ui/dr-ui/tests/export_ignores_the_viewport.rs#L1) |
 | FR-INF-1 | [`ui/dr-ui/src/lib.rs:1450`](../../ui/dr-ui/src/lib.rs#L1450), [`ui/dr-ui/ui/settings.slint:824`](../../ui/dr-ui/ui/settings.slint#L824) |
 | FR-MRG-1 | [`core/dr-pano/src/align.rs:1`](../../core/dr-pano/src/align.rs#L1), [`core/dr-pano/src/lib.rs:1`](../../core/dr-pano/src/lib.rs#L1), [`ui/dr-ui/src/lib.rs:1876`](../../ui/dr-ui/src/lib.rs#L1876), [`ui/dr-ui/src/merge.rs:1`](../../ui/dr-ui/src/merge.rs#L1), [`ui/dr-ui/src/merge_ui.rs:1`](../../ui/dr-ui/src/merge_ui.rs#L1), [`ui/dr-ui/ui/app.slint:1533`](../../ui/dr-ui/ui/app.slint#L1533), [`ui/dr-ui/ui/app.slint:592`](../../ui/dr-ui/ui/app.slint#L592), [`ui/dr-ui/ui/library.slint:2049`](../../ui/dr-ui/ui/library.slint#L2049), [`ui/dr-ui/ui/library.slint:5197`](../../ui/dr-ui/ui/library.slint#L5197), [`ui/dr-ui/ui/merge.slint:1`](../../ui/dr-ui/ui/merge.slint#L1) |
-| FR-MRG-10 | [`core/dr-gpu/src/merge.rs:1`](../../core/dr-gpu/src/merge.rs#L1), [`core/dr-gpu/src/shaders/merge.wgsl:1`](../../core/dr-gpu/src/shaders/merge.wgsl#L1), [`core/dr-pano/src/lib.rs:1`](../../core/dr-pano/src/lib.rs#L1) |
+| FR-MRG-10 | [`core/dr-gpu/src/merge.rs:1`](../../core/dr-gpu/src/merge.rs#L1), [`core/dr-gpu/src/shaders/merge.wgsl:1`](../../core/dr-gpu/src/shaders/merge.wgsl#L1), [`core/dr-pano/src/lib.rs:1`](../../core/dr-pano/src/lib.rs#L1), [`core/dr-pano/src/seam.rs:1`](../../core/dr-pano/src/seam.rs#L1) |
 | FR-MRG-11 | [`core/dr-gpu/src/merge.rs:1`](../../core/dr-gpu/src/merge.rs#L1), [`core/dr-gpu/src/shaders/merge.wgsl:1`](../../core/dr-gpu/src/shaders/merge.wgsl#L1) |
 | FR-MRG-2 | [`core/dr-gpu/src/adjust.rs:1514`](../../core/dr-gpu/src/adjust.rs#L1514), [`core/dr-gpu/src/adjust.rs:1641`](../../core/dr-gpu/src/adjust.rs#L1641), [`core/dr-gpu/src/adjust.rs:528`](../../core/dr-gpu/src/adjust.rs#L528), [`core/dr-gpu/src/adjust.rs:94`](../../core/dr-gpu/src/adjust.rs#L94), [`core/dr-pipeline/src/graph.rs:916`](../../core/dr-pipeline/src/graph.rs#L916), [`core/dr-pipeline/src/operation.rs:1150`](../../core/dr-pipeline/src/operation.rs#L1150), [`core/dr-pipeline/src/operation.rs:2529`](../../core/dr-pipeline/src/operation.rs#L2529), [`core/dr-pipeline/src/operation.rs:2569`](../../core/dr-pipeline/src/operation.rs#L2569), [`core/dr-pipeline/src/operation.rs:516`](../../core/dr-pipeline/src/operation.rs#L516), [`core/dr-pipeline/src/operation.rs:749`](../../core/dr-pipeline/src/operation.rs#L749), [`ui/dr-ui/src/merge.rs:1`](../../ui/dr-ui/src/merge.rs#L1) |
 | FR-MRG-3 | [`core/dr-decode/examples/linear_dng.rs:1`](../../core/dr-decode/examples/linear_dng.rs#L1), [`core/dr-decode/src/lib.rs:128`](../../core/dr-decode/src/lib.rs#L128), [`core/dr-decode/src/lib.rs:135`](../../core/dr-decode/src/lib.rs#L135), [`core/dr-decode/src/lib.rs:580`](../../core/dr-decode/src/lib.rs#L580), [`core/dr-decode/src/profile.rs:397`](../../core/dr-decode/src/profile.rs#L397), [`core/dr-export/src/dng.rs:1`](../../core/dr-export/src/dng.rs#L1), [`core/dr-gpu/src/demosaic.rs:337`](../../core/dr-gpu/src/demosaic.rs#L337), [`ui/dr-ui/src/merge.rs:1`](../../ui/dr-ui/src/merge.rs#L1) |
-| FR-MRG-4 | [`core/dr-export/src/inscribed.rs:1`](../../core/dr-export/src/inscribed.rs#L1), [`core/dr-pano/src/fill.rs:1`](../../core/dr-pano/src/fill.rs#L1), [`core/dr-pano/src/migan.rs:1`](../../core/dr-pano/src/migan.rs#L1), [`core/dr-pano/src/projection.rs:1`](../../core/dr-pano/src/projection.rs#L1), [`ui/dr-ui/src/library/paths.rs:365`](../../ui/dr-ui/src/library/paths.rs#L365), [`ui/dr-ui/src/library/paths.rs:369`](../../ui/dr-ui/src/library/paths.rs#L369), [`ui/dr-ui/src/merge.rs:166`](../../ui/dr-ui/src/merge.rs#L166), [`ui/dr-ui/src/merge_ui.rs:1`](../../ui/dr-ui/src/merge_ui.rs#L1), [`ui/dr-ui/ui/merge.slint:1`](../../ui/dr-ui/ui/merge.slint#L1), [`ui/dr-ui/ui/merge.slint:50`](../../ui/dr-ui/ui/merge.slint#L50) |
+| FR-MRG-4 | [`core/dr-export/src/inscribed.rs:1`](../../core/dr-export/src/inscribed.rs#L1), [`core/dr-pano/src/fill.rs:1`](../../core/dr-pano/src/fill.rs#L1), [`core/dr-pano/src/migan.rs:1`](../../core/dr-pano/src/migan.rs#L1), [`core/dr-pano/src/projection.rs:1`](../../core/dr-pano/src/projection.rs#L1), [`ui/dr-ui/src/library/paths.rs:365`](../../ui/dr-ui/src/library/paths.rs#L365), [`ui/dr-ui/src/library/paths.rs:369`](../../ui/dr-ui/src/library/paths.rs#L369), [`ui/dr-ui/src/merge.rs:174`](../../ui/dr-ui/src/merge.rs#L174), [`ui/dr-ui/src/merge_ui.rs:1`](../../ui/dr-ui/src/merge_ui.rs#L1), [`ui/dr-ui/ui/merge.slint:1`](../../ui/dr-ui/ui/merge.slint#L1), [`ui/dr-ui/ui/merge.slint:50`](../../ui/dr-ui/ui/merge.slint#L50) |
 | FR-MRG-5 | [`core/dr-pano/src/align.rs:1`](../../core/dr-pano/src/align.rs#L1), [`ui/dr-ui/src/merge.rs:1`](../../ui/dr-ui/src/merge.rs#L1), [`ui/dr-ui/src/merge_ui.rs:1`](../../ui/dr-ui/src/merge_ui.rs#L1), [`ui/dr-ui/ui/merge.slint:1`](../../ui/dr-ui/ui/merge.slint#L1) |
-| FR-MRG-6 | [`core/dr-pipeline/src/sidecar.rs:1055`](../../core/dr-pipeline/src/sidecar.rs#L1055), [`core/dr-pipeline/src/sidecar.rs:116`](../../core/dr-pipeline/src/sidecar.rs#L116), [`core/dr-pipeline/src/sidecar.rs:126`](../../core/dr-pipeline/src/sidecar.rs#L126), [`core/dr-pipeline/src/sidecar.rs:2284`](../../core/dr-pipeline/src/sidecar.rs#L2284), [`core/dr-pipeline/src/sidecar.rs:860`](../../core/dr-pipeline/src/sidecar.rs#L860), [`core/dr-thumbs/src/lib.rs:75`](../../core/dr-thumbs/src/lib.rs#L75), [`ui/dr-ui/src/export.rs:149`](../../ui/dr-ui/src/export.rs#L149), [`ui/dr-ui/src/export.rs:349`](../../ui/dr-ui/src/export.rs#L349), [`ui/dr-ui/src/export.rs:579`](../../ui/dr-ui/src/export.rs#L579), [`ui/dr-ui/src/lib.rs:1905`](../../ui/dr-ui/src/lib.rs#L1905), [`ui/dr-ui/src/library/cells.rs:353`](../../ui/dr-ui/src/library/cells.rs#L353), [`ui/dr-ui/src/library/cells.rs:374`](../../ui/dr-ui/src/library/cells.rs#L374), [`ui/dr-ui/src/library/cells.rs:56`](../../ui/dr-ui/src/library/cells.rs#L56), [`ui/dr-ui/src/library/composite.rs:1`](../../ui/dr-ui/src/library/composite.rs#L1), [`ui/dr-ui/src/library/sweep.rs:31`](../../ui/dr-ui/src/library/sweep.rs#L31), [`ui/dr-ui/src/library_ui/controller.rs:116`](../../ui/dr-ui/src/library_ui/controller.rs#L116), [`ui/dr-ui/src/library_ui/controller.rs:126`](../../ui/dr-ui/src/library_ui/controller.rs#L126), [`ui/dr-ui/src/library_ui/grid.rs:422`](../../ui/dr-ui/src/library_ui/grid.rs#L422), [`ui/dr-ui/src/library_ui/layout.rs:1`](../../ui/dr-ui/src/library_ui/layout.rs#L1), [`ui/dr-ui/src/library_ui/layout.rs:51`](../../ui/dr-ui/src/library_ui/layout.rs#L51), [`ui/dr-ui/src/library_ui/open.rs:44`](../../ui/dr-ui/src/library_ui/open.rs#L44), [`ui/dr-ui/src/library_ui/window.rs:233`](../../ui/dr-ui/src/library_ui/window.rs#L233), [`ui/dr-ui/src/library_ui/window.rs:476`](../../ui/dr-ui/src/library_ui/window.rs#L476), [`ui/dr-ui/src/library_ui/window.rs:664`](../../ui/dr-ui/src/library_ui/window.rs#L664), [`ui/dr-ui/src/merge.rs:1030`](../../ui/dr-ui/src/merge.rs#L1030), [`ui/dr-ui/src/merge.rs:250`](../../ui/dr-ui/src/merge.rs#L250), [`ui/dr-ui/src/merge.rs:987`](../../ui/dr-ui/src/merge.rs#L987), [`ui/dr-ui/src/merge_thumbs.rs:1`](../../ui/dr-ui/src/merge_thumbs.rs#L1), [`ui/dr-ui/src/merge_ui.rs:52`](../../ui/dr-ui/src/merge_ui.rs#L52), [`ui/dr-ui/ui/library.slint:1486`](../../ui/dr-ui/ui/library.slint#L1486), [`ui/dr-ui/ui/library.slint:486`](../../ui/dr-ui/ui/library.slint#L486), [`ui/dr-ui/ui/library.slint:549`](../../ui/dr-ui/ui/library.slint#L549), [`ui/dr-ui/ui/library.slint:637`](../../ui/dr-ui/ui/library.slint#L637) |
+| FR-MRG-6 | [`core/dr-pipeline/src/sidecar.rs:1055`](../../core/dr-pipeline/src/sidecar.rs#L1055), [`core/dr-pipeline/src/sidecar.rs:116`](../../core/dr-pipeline/src/sidecar.rs#L116), [`core/dr-pipeline/src/sidecar.rs:126`](../../core/dr-pipeline/src/sidecar.rs#L126), [`core/dr-pipeline/src/sidecar.rs:2284`](../../core/dr-pipeline/src/sidecar.rs#L2284), [`core/dr-pipeline/src/sidecar.rs:860`](../../core/dr-pipeline/src/sidecar.rs#L860), [`core/dr-thumbs/src/lib.rs:75`](../../core/dr-thumbs/src/lib.rs#L75), [`ui/dr-ui/src/export.rs:149`](../../ui/dr-ui/src/export.rs#L149), [`ui/dr-ui/src/export.rs:349`](../../ui/dr-ui/src/export.rs#L349), [`ui/dr-ui/src/export.rs:579`](../../ui/dr-ui/src/export.rs#L579), [`ui/dr-ui/src/lib.rs:1905`](../../ui/dr-ui/src/lib.rs#L1905), [`ui/dr-ui/src/library/cells.rs:353`](../../ui/dr-ui/src/library/cells.rs#L353), [`ui/dr-ui/src/library/cells.rs:374`](../../ui/dr-ui/src/library/cells.rs#L374), [`ui/dr-ui/src/library/cells.rs:56`](../../ui/dr-ui/src/library/cells.rs#L56), [`ui/dr-ui/src/library/composite.rs:1`](../../ui/dr-ui/src/library/composite.rs#L1), [`ui/dr-ui/src/library/sweep.rs:31`](../../ui/dr-ui/src/library/sweep.rs#L31), [`ui/dr-ui/src/library_ui/controller.rs:116`](../../ui/dr-ui/src/library_ui/controller.rs#L116), [`ui/dr-ui/src/library_ui/controller.rs:126`](../../ui/dr-ui/src/library_ui/controller.rs#L126), [`ui/dr-ui/src/library_ui/grid.rs:422`](../../ui/dr-ui/src/library_ui/grid.rs#L422), [`ui/dr-ui/src/library_ui/layout.rs:1`](../../ui/dr-ui/src/library_ui/layout.rs#L1), [`ui/dr-ui/src/library_ui/layout.rs:51`](../../ui/dr-ui/src/library_ui/layout.rs#L51), [`ui/dr-ui/src/library_ui/open.rs:44`](../../ui/dr-ui/src/library_ui/open.rs#L44), [`ui/dr-ui/src/library_ui/window.rs:233`](../../ui/dr-ui/src/library_ui/window.rs#L233), [`ui/dr-ui/src/library_ui/window.rs:476`](../../ui/dr-ui/src/library_ui/window.rs#L476), [`ui/dr-ui/src/library_ui/window.rs:664`](../../ui/dr-ui/src/library_ui/window.rs#L664), [`ui/dr-ui/src/merge.rs:1015`](../../ui/dr-ui/src/merge.rs#L1015), [`ui/dr-ui/src/merge.rs:1058`](../../ui/dr-ui/src/merge.rs#L1058), [`ui/dr-ui/src/merge.rs:258`](../../ui/dr-ui/src/merge.rs#L258), [`ui/dr-ui/src/merge_thumbs.rs:1`](../../ui/dr-ui/src/merge_thumbs.rs#L1), [`ui/dr-ui/src/merge_ui.rs:52`](../../ui/dr-ui/src/merge_ui.rs#L52), [`ui/dr-ui/ui/library.slint:1486`](../../ui/dr-ui/ui/library.slint#L1486), [`ui/dr-ui/ui/library.slint:486`](../../ui/dr-ui/ui/library.slint#L486), [`ui/dr-ui/ui/library.slint:549`](../../ui/dr-ui/ui/library.slint#L549), [`ui/dr-ui/ui/library.slint:637`](../../ui/dr-ui/ui/library.slint#L637) |
 | FR-MRG-7 | [`ui/dr-ui/src/merge.rs:1`](../../ui/dr-ui/src/merge.rs#L1), [`ui/dr-ui/src/merge_ui.rs:1`](../../ui/dr-ui/src/merge_ui.rs#L1), [`ui/dr-ui/ui/app.slint:592`](../../ui/dr-ui/ui/app.slint#L592), [`ui/dr-ui/ui/merge.slint:1`](../../ui/dr-ui/ui/merge.slint#L1) |
 | FR-MRG-8 | [`core/dr-pano/src/xfeat.rs:1`](../../core/dr-pano/src/xfeat.rs#L1), [`core/dr-segment/examples/onnx_probe.rs:1`](../../core/dr-segment/examples/onnx_probe.rs#L1) |
 | FR-NC-1 | [`core/dr-sync-nextcloud/src/auth.rs:206`](../../core/dr-sync-nextcloud/src/auth.rs#L206), [`core/dr-sync-nextcloud/src/auth.rs:49`](../../core/dr-sync-nextcloud/src/auth.rs#L49), [`core/dr-sync-nextcloud/src/provider.rs:1`](../../core/dr-sync-nextcloud/src/provider.rs#L1), [`core/dr-sync/src/account.rs:375`](../../core/dr-sync/src/account.rs#L375), [`ui/dr-ui/src/launch.rs:316`](../../ui/dr-ui/src/launch.rs#L316), [`ui/dr-ui/src/launch.rs:61`](../../ui/dr-ui/src/launch.rs#L61), [`ui/dr-ui/src/launch_ui.rs:521`](../../ui/dr-ui/src/launch_ui.rs#L521) |
@@ -147,7 +147,7 @@ _None._
 | FR-PLAT-WIN-2 | [`apps/darkroom-desktop/build.rs:1`](../../apps/darkroom-desktop/build.rs#L1), [`apps/darkroom-desktop/src/main.rs:6`](../../apps/darkroom-desktop/src/main.rs#L6), [`ui/dr-ui/src/launch_ui.rs:937`](../../ui/dr-ui/src/launch_ui.rs#L937) |
 | FR-PLAT-WIN-3 | [`apps/darkroom-desktop/src/main.rs:19`](../../apps/darkroom-desktop/src/main.rs#L19) |
 | FR-RAW-1 | [`core/dr-decode/src/lib.rs:250`](../../core/dr-decode/src/lib.rs#L250), [`core/dr-types/src/lib.rs:132`](../../core/dr-types/src/lib.rs#L132), [`core/dr-types/src/lib.rs:203`](../../core/dr-types/src/lib.rs#L203) |
-| FR-RAW-2 | [`core/dr-decode/src/decoder.rs:1`](../../core/dr-decode/src/decoder.rs#L1), [`core/dr-decode/src/decoder.rs:26`](../../core/dr-decode/src/decoder.rs#L26), [`core/dr-decode/src/decoder.rs:59`](../../core/dr-decode/src/decoder.rs#L59), [`core/dr-decode/src/decoder.rs:95`](../../core/dr-decode/src/decoder.rs#L95), [`ui/dr-ui/src/decoder_seam.rs:183`](../../ui/dr-ui/src/decoder_seam.rs#L183), [`ui/dr-ui/src/decoder_seam.rs:1`](../../ui/dr-ui/src/decoder_seam.rs#L1), [`ui/dr-ui/src/decoder_seam.rs:214`](../../ui/dr-ui/src/decoder_seam.rs#L214), [`ui/dr-ui/src/decoder_seam.rs:255`](../../ui/dr-ui/src/decoder_seam.rs#L255), [`ui/dr-ui/src/export.rs:1096`](../../ui/dr-ui/src/export.rs#L1096), [`ui/dr-ui/src/export.rs:850`](../../ui/dr-ui/src/export.rs#L850), [`ui/dr-ui/src/import.rs:96`](../../ui/dr-ui/src/import.rs#L96), [`ui/dr-ui/src/library/sweep.rs:301`](../../ui/dr-ui/src/library/sweep.rs#L301), [`ui/dr-ui/src/library/sweep.rs:629`](../../ui/dr-ui/src/library/sweep.rs#L629), [`ui/dr-ui/src/library/thumbnails_gen.rs:101`](../../ui/dr-ui/src/library/thumbnails_gen.rs#L101), [`ui/dr-ui/src/merge.rs:113`](../../ui/dr-ui/src/merge.rs#L113), [`ui/dr-ui/src/repairs.rs:243`](../../ui/dr-ui/src/repairs.rs#L243) |
+| FR-RAW-2 | [`core/dr-decode/src/decoder.rs:1`](../../core/dr-decode/src/decoder.rs#L1), [`core/dr-decode/src/decoder.rs:26`](../../core/dr-decode/src/decoder.rs#L26), [`core/dr-decode/src/decoder.rs:59`](../../core/dr-decode/src/decoder.rs#L59), [`core/dr-decode/src/decoder.rs:95`](../../core/dr-decode/src/decoder.rs#L95), [`ui/dr-ui/src/decoder_seam.rs:183`](../../ui/dr-ui/src/decoder_seam.rs#L183), [`ui/dr-ui/src/decoder_seam.rs:1`](../../ui/dr-ui/src/decoder_seam.rs#L1), [`ui/dr-ui/src/decoder_seam.rs:214`](../../ui/dr-ui/src/decoder_seam.rs#L214), [`ui/dr-ui/src/decoder_seam.rs:255`](../../ui/dr-ui/src/decoder_seam.rs#L255), [`ui/dr-ui/src/export.rs:1096`](../../ui/dr-ui/src/export.rs#L1096), [`ui/dr-ui/src/export.rs:850`](../../ui/dr-ui/src/export.rs#L850), [`ui/dr-ui/src/import.rs:96`](../../ui/dr-ui/src/import.rs#L96), [`ui/dr-ui/src/library/sweep.rs:301`](../../ui/dr-ui/src/library/sweep.rs#L301), [`ui/dr-ui/src/library/sweep.rs:629`](../../ui/dr-ui/src/library/sweep.rs#L629), [`ui/dr-ui/src/library/thumbnails_gen.rs:101`](../../ui/dr-ui/src/library/thumbnails_gen.rs#L101), [`ui/dr-ui/src/merge.rs:119`](../../ui/dr-ui/src/merge.rs#L119), [`ui/dr-ui/src/repairs.rs:243`](../../ui/dr-ui/src/repairs.rs#L243) |
 | FR-RAW-3 | [`core/dr-decode/src/lib.rs:146`](../../core/dr-decode/src/lib.rs#L146), [`core/dr-decode/src/lib.rs:537`](../../core/dr-decode/src/lib.rs#L537), [`core/dr-decode/src/locate.rs:1435`](../../core/dr-decode/src/locate.rs#L1435), [`core/dr-gpu/src/demosaic.rs:1182`](../../core/dr-gpu/src/demosaic.rs#L1182), [`core/dr-gpu/src/demosaic.rs:749`](../../core/dr-gpu/src/demosaic.rs#L749), [`core/dr-gpu/tests/hot_pixels.rs:1`](../../core/dr-gpu/tests/hot_pixels.rs#L1) |
 | FR-RAW-4 | [`core/dr-decode/src/error.rs:1`](../../core/dr-decode/src/error.rs#L1), [`core/dr-decode/src/error.rs:30`](../../core/dr-decode/src/error.rs#L30), [`ui/dr-ui/src/lib.rs:295`](../../ui/dr-ui/src/lib.rs#L295) |
 | FR-RAW-5 | [`core/dr-decode/src/lib.rs:174`](../../core/dr-decode/src/lib.rs#L174), [`core/dr-gpu/src/demosaic.rs:1056`](../../core/dr-gpu/src/demosaic.rs#L1056), [`core/dr-gpu/src/demosaic.rs:1180`](../../core/dr-gpu/src/demosaic.rs#L1180), [`core/dr-gpu/src/demosaic.rs:34`](../../core/dr-gpu/src/demosaic.rs#L34), [`core/dr-gpu/src/demosaic.rs:977`](../../core/dr-gpu/src/demosaic.rs#L977) |