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ICRS (Interactive Color Range Analyzer)

ICRS is a small Tkinter tool for analysing colour ranges in images. You load a picture, pick or click a reference colour, adjust hue/saturation/value sliders, and the app marks matching pixels while showing quick stats.

Features

Two synced previews (original + overlay)
Hue/Sat/Value sliders with presets and image colour picker
Exclusion rectangles to ignore regions
Theme toggle (light/dark) with rounded toolbar buttons
Folder support with previous/next navigation
Quick overlay export (PNG) and optional defaults via config.toml

Requirements

Python 3.11+ (3.10 works with tomli)
uv for dependency management
Tkinter (install separately on some Linux distros)

Setup with uv (Windows PowerShell)

git clone https://git.lukasmahler.de/lm/ICRS.git
cd ICRS
uv venv
.\.venv\Scripts\Activate
uv pip install .
uv run icrs

The launcher copies Tcl/Tk resources into the virtualenv on first run, so no manual environment tweaks are needed. On macOS/Linux replace the activate step with source .venv/bin/activate.

Workflow

Load an image (📂) or a folder (📁).
Pick a colour (🎨 dialog, 🖱️ image click, or preset swatch).
Fine‑tune sliders; watch the overlay update on the right.
Move through folder images with ⬅️ / ➡️.
Draw exclusions with right drag; reset or save when ready.

Config Defaults

Optional config.toml:

[defaults]
hue_min = 250.0
hue_max = 310.0
sat_min = 15.0
val_min = 15.0
val_max = 100.0
alpha = 120

Project Layout

app/
  app.py          # main app assembly
  gui/            # UI, theme, picker mixins
  logic/          # image ops, defaults, reset
config.toml       # optional defaults
main.py           # entry point

Development

Quick check: uv run python -m compileall app main.py
Contributions welcome; include screenshots for UI tweaks.

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