Notan Tool

Use this tool to see the underlying notan of your photo.

Select Image

Supported formats: JPEG, PNG, GIF

Threshold 127

Adjust black/white balance (0-255)

Blur 3

Adjust blur strength (0-10)

How to Use

  1. Upload your image below (JPEG, PNG, or GIF).
  2. Adjust the threshold slider to control the black/white balance. This is handy for images that are particularly light or dark. Otherwise, keep it around the middle for best results.
  3. Use the blur slider to soften edges and create more cohesive shapes.
  4. When satisfied, click “Download Notan Image” (button only visible on desktop).

When to Use This Tool

Here are some ideas:

  • Upload a reference photo you plan on drawing or painting to help with your planning and strategy.
  • Upload a photo of your finished artwork to help with self-reflection.
  • Upload a photo of a master artwork to help with your analysis.
Notan Tool Thumbnail
Notan of Vincent Van Gogh’s Starry Night, 1889