AgentSkillsCN

image_invert

将图像中的颜色进行反转，以营造负片效果或打造富有艺术感的变体。当用户需要对图像颜色进行反色处理时，可使用此技能。

SKILL.md
--- frontmatter
name: image_invert
description: Invert colors in images to create negative effect or artistic variations. Use this skill when the user needs to invert image colors.

Image Invert

This skill provides a utility to invert colors in images, creating a negative effect or artistic color variations.

Usage

bash
uv run python .claude/skills/image_invert/invert.py <image_path> [options]

Note: For brevity, examples below use invert.py - prepend the full path .claude/skills/image_invert/ when running.

The script will:

  1. •Open the specified image file
  2. •Invert colors according to specified channels
  3. •Save the result with _inverted appended to filename (e.g., image_inverted.jpg)

Options

  • •-c, --channels - Channels to invert (default: "rgb")
    • •rgb: Invert all channels (standard negative effect)
    • •r: Invert only red channel
    • •g: Invert only green channel
    • •b: Invert only blue channel
    • •Combinations: rg, rb, gb (invert multiple specific channels)
  • •-q, --quality - JPEG quality (1-100, default: 95)

Supported Formats

  • •Input: Any format supported by PIL/Pillow (JPG, PNG, BMP, GIF, WEBP, etc.)
  • •Output: Same format as input

Examples

bash
# Standard color inversion (negative effect)
invert.py image.jpg

# Invert only red channel (artistic effect)
invert.py image.jpg --channels r

# Invert only green channel
invert.py image.jpg --channels g

# Invert red and blue channels
invert.py image.jpg --channels rb

# Invert with custom JPEG quality
invert.py photo.jpg --quality 90

Notes

  • •RGB Mode (default): Inverts all color channels, creating a classic negative effect (like film negatives).
  • •Single Channel: Inverting individual channels creates interesting artistic effects with color shifts.
  • •Multiple Channels: You can invert any combination of R, G, B channels for unique color variations.
  • •Quality: Only affects JPEG output. Higher values = better quality but larger file size.
  • •Output Naming: Output files are named original_inverted.ext (e.g., photo_inverted.jpg)
  • •Alpha Channel: Preserved but not inverted for images with transparency.

Use Cases

  • •Creating negative images (like film negatives)
  • •Artistic color effects
  • •High-contrast transformations
  • •Color correction experiments
  • •Creating variations for design work

Requirements

  • •Python 3.x
  • •Pillow (PIL) library

The script will automatically install Pillow if it's not available.