Topaz Image Lighting API Documentation

Topaz Image Lighting API Documentation

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Topaz Image Lighting adjusts and balances images to improve quality despite sub-optimal lighting. Fix exposure, white balance, and color temperature. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Topaz Image Lighting is a professional-grade image lighting and color adjustment model powered by Topaz Labs’ AI technology. Upload your image and let AI automatically adjust lighting, correct white balance, or even colorize black-and-white photos.


Why Choose This?

  • AI-powered lighting adjustment Automatically enhance exposure, shadows, highlights, and overall lighting balance.

  • White balance correction Fix color casts and correct inaccurate white balance from any lighting condition.

  • Photo colorization Transform black-and-white photos into natural-looking color images.

  • Professional quality Powered by Topaz Labs’ AI, trusted by professional photographers worldwide.

  • Multiple output formats Export as JPEG or PNG based on your workflow needs.


Parameters

ParameterRequiredDescription
imageYesSource image to process (upload or URL)
modelNoProcessing model to use (default: Adjust V2)
output_formatNoOutput format: jpeg or png

Model Options

ModelDescription
Adjust V2Improved lighting adjustment with better tonal range (default)
White BalanceCorrect color casts and white balance issues
ColorizeAdd natural color to black-and-white images

Output Format Options

  • jpeg — Compressed format, smaller file size
  • png — Lossless format, supports transparency

How to Use

  1. Upload your image — drag and drop or paste a URL.
  2. Select model — choose based on what you want to achieve.
  3. Choose output format — select based on your quality and file size needs.
  4. Run — submit and download the processed image.

Pricing

ItemCost
Per 24 input megapixels (rounded up)$0.096

The minimum charge is $0.096. Each additional started 24-megapixel block adds $0.096.


Best Use Cases

  • Exposure Correction — Fix underexposed or overexposed photos.
  • White Balance Fix — Correct color casts from artificial lighting.
  • Photo Restoration — Colorize old black-and-white family photos.
  • Batch Processing — Consistently adjust lighting across multiple images.
  • Professional Editing — Quick lighting fixes in professional workflows.

Pro Tips

  • Use Adjust V2 for better results on challenging lighting conditions.
  • White Balance model works best on images with obvious color casts.
  • Colorize model produces natural results but may need manual tweaking for historical accuracy.
  • For archival work, export as PNG to avoid additional compression artifacts.

Notes

  • Adjust models work on both color and black-and-white images.
  • Colorize model is specifically designed for black-and-white to color conversion.
  • Results may vary based on original image quality and lighting conditions.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "model": "Adjust V2",
  "output_format": "jpeg"
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/topaz/image/lighting" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}")

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}")
  RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout|deleted) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    *) sleep 2 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

ParameterTypeRequiredDefaultRangeDescription
imagestringNo-The JPEG or PNG image file to be processed. Supported formats: jpeg, png.
modelstringNoAdjust V2Adjust V2, White Balance, ColorizeThe lighting model to use. Adjust V2: Enhanced lighting adjustment. White Balance: Correct color temperature. Colorize: Add natural color to images.
output_formatstringNojpegjpeg, pngThe format of the output image.
enable_base64_outputbooleanNofalse-If set to `true`, the prediction's `output` strings are returned as **naked base64** (no `data:<mime>;base64,` prefix). When `false` (default), outputs are returned as URLs pointing to our CDN.

Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
data.idstringUnique identifier for the prediction, Task Id
data.modelstringModel ID used for the prediction
data.outputsarrayOutput values, usually URL strings; some models return text strings or structured result objects (empty when status is not completed)
data.urlsobjectObject containing related API endpoints
data.statusstringTask status. completed is successful; failed, cancelled, timeout, and deleted are failure terminal statuses.
data.created_atstringISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds

Result Request Parameters

ParameterTypeRequiredDefaultDescription
idstringYes-Task ID

Result Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
dataobjectThe prediction data object containing all details
data.idstringUnique identifier for the prediction
data.modelstringModel ID used for the prediction
data.outputsarray<string | object>Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model.
data.urlsobjectObject containing related API endpoints
data.statusstringStatus: completed is successful; failed, cancelled, timeout, and deleted are failure terminal statuses
data.created_atstringISO timestamp of when the request was created
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds
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