augmentation op• Data kinds: image → image
• Call: fullseye.apply(img, "aug_chromatic", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
*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).*
Lateral chromatic aberration proxy for a gray image. True lateral CA magnifies the colour channels differently, so edges gain a coloured fringe; on a single channel the observable signature is a SHIFTED copy of the edge (high-pass) energy superposed on the image. Here the high-pass `v - gaussian(v, 1) is shifted by s = 1 + int(4*a) px horizontally and added back with amplitude 0.1 + 0.9*b`. Flat regions have zero high-pass, so only edges fringe -- exactly the real behaviour.
• gallery2d_color_artistic family guide
• 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.
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.
aug_chromatic 0.50 0.50
▸ Load this pipeline · Load & run
• gallery2d_color_artistic — py -3.11 examples/gallery2d_color_artistic.py
image as input)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
augmentation)aug_shot_noise · aug_read_noise · aug_fixed_pattern · aug_motion_blur · aug_vignette · aug_rolling_shutter · aug_jpeg_blocks · aug_cutout
*Provenance: ops.py — 2D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.