Image Processing of Calligraphy

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

Calligraphy is the art of handwriting. Different languages and writing systems have different features.


Chinese calligraphy is written with black ink on white paper. The artist uses a red seal as a signature at the bottom. Later, collectors add red seals as historical evidence of ownership.

You can recover the image by removing the red seals and you can process the image in various ways.


Contributed by: Frederick Wu (April 2011)
Open content licensed under CC BY-NC-SA



Snapshot 1 shows the original image with contrast and brightness adjusted

Snapshot 2 shows the result after removing the red seals from the image

Snapshot 3 shows the effect with different filters set

Snapshot 4 shows the effect with edge detect set

The Chinese calligraphy chosen is a masterpiece of running script composed by Wang Xizhi, called "Lanting Xu".

Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.