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AI Manga Image Colorizer

AIFOR CREATORS
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AI Manga Image Colorizer

Colorize black-and-white manga and anime panels using OpenAI's GPT Image model.

Upload one or more B&W panel image URLs, provide your own OpenAI API key, and receive vibrant colorized versions. Original line art and shading are preserved while scene-appropriate, manga-style colors are applied automatically.

What It Does

  • Accepts a list of direct image URLs (JPG, PNG, or WebP)
  • Downloads each image and submits it to the OpenAI GPT Image edit endpoint
  • Returns colorized results including a hosted image URL, processing time, and status
  • Handles failures gracefully — each image produces a record regardless of outcome

Inputs

Field Type Required Description
imageUrls array of strings Yes Direct URLs to B&W manga/anime panel images
openaiApiKey string Yes Your OpenAI API key (starts with sk-). Get one at https://platform.openai.com/api-keys
colorStyle string No Colorization style prompt. Default: vibrant manga-style colors appropriate to the scene and characters
outputSize string No Output image size: 1024x1024 (default), 1024x1536, 1536x1024, or auto
maxItems integer No Maximum number of panels to colorize. Defaults to all provided

Output

Each processed image produces one dataset record:

Field Type Description
sourceUrl string Original input image URL
colorizedUrl string URL to the colorized image in Apify Key-Value Store
style string Colorization prompt used
outputSize string Output dimensions
processingMs number API round-trip time in milliseconds
model string OpenAI model used (gpt-image-1)
colorizedAt string ISO 8601 timestamp
status string ok or error
errorMsg string Error details when status is error

Requirements

  • OpenAI API key — this actor calls the OpenAI Images Edit API. You must supply your own key. Charges apply per image processed (see OpenAI pricing).
  • Supported image formats: JPG, JPEG, PNG, WebP, GIF
  • Maximum image size: 20 MB per file

Example

Input:

{
  "imageUrls": [
    "https://example.com/manga-panel-1.jpg"
  ],
  "openaiApiKey": "sk-...",
  "colorStyle": "vibrant manga-style colors appropriate to the scene and characters",
  "outputSize": "1024x1024"
}

Output record (success):

{
  "sourceUrl": "https://example.com/manga-panel-1.jpg",
  "colorizedUrl": "https://api.apify.com/v2/key-value-stores/abc123/records/panel_xxx",
  "style": "vibrant manga-style colors appropriate to the scene and characters",
  "outputSize": "1024x1024",
  "processingMs": 8420,
  "model": "gpt-image-1",
  "colorizedAt": "2026-06-10T12:00:00.000Z",
  "status": "ok",
  "errorMsg": null
}

Notes

  • Colorized images are stored in Apify Key-Value Store (colorized-panels) accessible via the returned URLs during the run's data retention window.
  • Up to 2 images are processed concurrently to maximize throughput while respecting OpenAI rate limits.
  • Images that fail (network error, unsupported format, API error) still produce a dataset record with status: "error" — the run does not abort on partial failures.
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