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Raster to Vector Conversion

Raster to Vector Conversion. Ioana Ciobanu János Farkas Pawel Kulinski Arpád Szövérdfi SSIP Timisoara 2003. Introduction. Raster to vector conversion Starting from a reasonably complex drawing saved in raster format, decompose it in the composite vectors from which it was formed.

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Raster to Vector Conversion

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  1. Raster to Vector Conversion Ioana Ciobanu János Farkas Pawel Kulinski Arpád Szövérdfi SSIP Timisoara 2003

  2. Introduction Raster to vector conversion • Starting from a reasonably complex drawing saved in raster format, decompose it in the composite vectors from which it was formed. • Input: raster image. • Output: vector description.

  3. Steps • Binarization • Vectorization • points • lines • triangles • rectangles • Further development

  4. Steps • Binarization • Vectorization • points • lines • triangles • rectangles • Further development

  5. Binarization

  6. Binarization

  7. Binarization Distance-map

  8. Binarization

  9. Steps • Binarization • Vectorization • points • lines • triangles • rectangles • Further development

  10. Vectorisation The input binary image

  11. Vectorisation Finding ends 0 0 0 0 1 1 0 0 0

  12. Vectorisation Removing lines

  13. Vectorisation Finding 90° corners 0 0 1 0 1 0 0 0 1

  14. Vectorisation Finding and removing rectangles

  15. Vectorisation Finding othercorners 0 0 1 0 1 1 0 0 0

  16. Vectorisation Finding and removing triangles

  17. Vectorisation The remaining forms: circles and arcs

  18. Vectorisation The output vectors

  19. Steps • Binarization • Vectorization • points • lines • triangles • rectangles • Further development

  20. Further development • Circles • Polylines • Curves

  21. Thanks for your attention

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