Vectorize a color image to color vectors

 

Before vectorizing a color image to color vectors you need to reduce the colors on the image.

After you have done this you can vectorize the image using either of two methods:

 

If you have been unable to reduce the colors on the image cleanly, vectorize the image using the Vector Colors to Raster Colors method. Otherwise, use the Color Layers method.

The Color Layers method is better because:

It uses color information during vectorization and therefore produces better vectorization results.
It gives you the option to convert one, some or all the colors in the raster image. Using the Vector Colors to Raster Colors method, all colors are converted.

Color Layers method

In this method you select a Pick Color or Select Color Layers. Scan2CAD converts the colors you have selected into color vectors.

1. Reduce the colors on the raster image.
2. Select a Pick Color or Layer Color.

 

Raster image

Vector image: no Pick Color, no Layer Colors

If no Pick Color or Layer Colors are selected, Scan2CAD is “color blind”. It vectorizes the color image as though all the colors were black.

 

Raster image

Vector image: Pick Color = blue

If a Pick Color is selected, Scan2CAD only sees and vectorizes Pick Colored parts of the raster image.

 

Raster image

Vector image – Layer Colors = blue, brown

If Layer Colors are selected, Scan2CAD only sees and vectorizes Layer Colored parts of the raster image.

If Layer Colors are selected, any Pick Color is ignored.

 

3. Follow the instructions for

Vectorizing an image without text

Vectorizing an image with text

or

Vectorizing text only

 

Vector Colors to Raster Colors method

In this method you vectorize the image as though it was a black and white image. After vectorization you use Vector Colors to Raster Colors to assign colors to the vectors. Each vector is assigned the color that is dominant in the raster image beneath it.

1. Reduce the colors on the raster image as far as possible.
2. Follow the instructions for

Vectorizing an image without text

Vectorizing an image with text

or

Vectorizing text only

3. Use Vector Edit Menu > Modify > Un-Make Polylines to break any polylines that were created during the vectorization.
4. Select Vector Edit Menu > Modify > Vector Colors to Raster Colors.
5. If you want polylines in the DXF file, use Vector Edit Menu > Modify > Make Polylines to restore them.

 

After you have changed the vector colors, you may have to press C on your keyboard to view them.

 

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