Raster to Vector Conversion

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# Raster to Vector Conversion - PowerPoint PPT Presentation

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

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.
• Input: raster image.
• Output: vector description.
Steps
• Binarization
• Vectorization
• points
• lines
• triangles
• rectangles
• Further development
Steps
• Binarization
• Vectorization
• points
• lines
• triangles
• rectangles
• Further development
Binarization

Distance-map

Steps
• Binarization
• Vectorization
• points
• lines
• triangles
• rectangles
• Further development
Vectorisation

The input binary image

Vectorisation

Finding ends

0 0 0

0 1 1

0 0 0

Vectorisation

Removing lines

Vectorisation

Finding 90° corners

0 0 1

0 1 0

0 0 1

Vectorisation

Finding and removing rectangles

Vectorisation

Finding othercorners

0 0 1

0 1 1

0 0 0

Vectorisation

Finding and removing triangles

Vectorisation

The remaining forms: circles and arcs

Vectorisation

The output vectors

Steps
• Binarization
• Vectorization
• points
• lines
• triangles
• rectangles
• Further development
Further development
• Circles
• Polylines
• Curves