xpil_offset — 2D `geometry` op

• Data kinds: image → image

• Call: fullseye.apply(img, "xpil_offset", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])

xpil_offset: 入力 → 出力

*The figure is the real output on a synthetic 128×128 input. Left: input, right: output (a non-image return value is shown as the value itself).*

Usage

Shifts the image toroidally (wrap-around). Calls `PIL.ImageChops.offset` -- a cyclic shift in which pixels pushed past one edge reappear on the opposite edge, so unlike an ordinary translation the image edges don't turn black.

> The detailed description below is the original text — the summary and the headings are translated.

a が横方向のシフト量（画像幅に対する比率）、b が縦方向のシフト量（画像高さに対する比率）を振る。内容の連続性は崩れるため、タイル状のテクスチャ生成などに向く。

Detailed usage guide

• gallery2d_geometry family guide

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Try it in Studio

The program below has been verified to run (same input as the figure). In Studio's help this block becomes buttons that load and run it on the spot.

xpil_offset 0.50 0.50

▸ Load this pipeline · Load & run

Runnable examples (verified samples that actually call this op)

• gallery2d_geometry — py -3.11 examples/gallery2d_geometry.py

Ops the type connects to (they accept `image` as input)

identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter

Same category (`geometry`)

rotate_img · rescale_img · affine_warp · sk_swirl · mirror_image · transpose_region · rotate_image · zoom_image_factor

*Provenance: ops.py — 2D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

xpil_offset — 2D geometry op