2. Use Java's ImageIO class to read the image file.
3. Preprocessing the image, including image resizing, smoothing and edge detection, to help the subsequent vectorization process.
4. Use JAIAPI of Java or the third-party library to vectorize the image. If a ready-made algorithm is provided to convert bitmap into vector graphics, if manual edge detection and path creation are not needed.
5. Use Java's Graphics2D class or other graphics libraries to create vector graphics objects.
6. Save the vector graphics as a common vector graphics format, such as SVG or PDF.