TapCanvas Local Collage

Use this skill when the task is:

• merge multiple storyboard frames into one grid image
• merge role-card images and add role-name labels
• avoid model-based collage generation

This skill is local-first and deterministic. It does not call any model API.

Prerequisites

• Python 3.9+
• Pillow

Install:

python3 -m pip install --upgrade pillow

Script

Path:

skills/tapcanvas-collage-local/scripts/collage.py

Input modes

You can pass image inputs as:

• local file paths
• HTTP/HTTPS URLs

Usage examples

1. 2x2 collage with role labels:

python3 skills/tapcanvas-collage-local/scripts/collage.py \
  --input ./tmp/shot1.png \
  --input ./tmp/shot2.png \
  --input ./tmp/shot3.png \
  --input ./tmp/shot4.png \
  --label "真宫寺唯" \
  --label "萧夜" \
  --label "真宫寺唯" \
  --label "萧夜" \
  --output ./tmp/role-collage.png \
  --grid 2 \
  --cell-size 640 \
  --divider-width 4 \
  --divider-color "#ffffff"

2. URL inputs, auto grid:

python3 skills/tapcanvas-collage-local/scripts/collage.py \
  --input "https://example.com/a.png" \
  --input "https://example.com/b.png" \
  --input "https://example.com/c.png" \
  --output ./tmp/storyboard-collage.png \
  --grid auto

Behavior

• Fills each cell with center-crop + resize (stable visual layout).
• Draws a semi-transparent dark label strip at cell bottom.
• Draws per-cell label text in white.
• If labels are fewer than images, remaining cells are unlabeled.
• If labels are more than images, extra labels are ignored.

Output

• Default output format: PNG.
• Ensure output path parent directories exist (script auto-creates).