Specifications

Print2CAD OCR 2013- 5
Print2CAD
OCR 2013
9. Vectorization of Raster Pictures 72
9.1 Basics of Vectorization 73
9.2 Choosing the vectorization process 75
9.2.1 Find the Center of the Pixel Traces 75
9.2.2 Find the Center of Pixel Traces and the Outline of Pixel Areas 77
9.2.3 Find the Outlines of the Pixel Areas 78
9.3 Improvement of the Vectorization Process 79
9.3.1 Recognition of Horizontal and Vertical Lines 79
9.3.2 Recognition of Inclined Lines 79
9.3.3 Circle and Arc Recognition 80
9.4 Improving Pixel Images Before the Vectorization 80
9.4.1 Filling Small Holes in the Pixel Traces 81
9.4.2 Filling All Holes in the Pixel Traces 81
9.4.3 Thinning Out the Pixel Lines 81
9.4.4 Making the Pixel Traces Thicker 81
9.4.5 Removal of Free Pixels 82
9.4.6 Closing Slightly Opened Pixel Traces 83
9.5 Color Palette of the Vectorization 84
9.5.1 Black and White Vectorization 84
9.5.2 Color Vectorization 84
9.6 Interconnecting the Vectorization Elements to a Block 84
9.7 Activating the Smoothing of Lines 85
10. Converting into Editable Raster Pictures 86
10.1 Common Problems 87
10.2 Converting Raster Images as Horizontal Lines 88
10.3 Converting Raster Images as entity “Solid” 89
11. Thresholds for Black and White, Raster Extracting 90
11.1 Extracting Pixel Images to the Hard Disk 91
11.2 Threshold for Colors Black and White 92