Stroke Width Transform

Zero-dependency, public domain header-only library that implements Stroke Width Transform

See:

• Quickstart
• Examples
• Gallery
• Tests

Quickstart

Grab a copy of swt.h and load it in your project as a stb-style lib

The documentation for functions is also contained within the header file

#define SWT_IMPLEMENTATION
#include "swt.h"

Examples

Here is how you would use this with stb

  /* ... */

    SWTImage image = { image_data, width, height, channels };
    SWTData *data = swt_allocate(width * height);

    swt_apply_stroke_width_transform(&image, data->components, data->results);
    
    // optionally visualize the points on the image
    swt_visualize_text_on_image(&image, data->results, 4);

    swt_free(data);

  /* ... */

this will produce the following output

Gallery

Original image	Detected text (Highlighted in Gray)

Tests

The tests are written using µnit find them at tests/

.\build.bat TEST
.\swt_test.exe