From the category archives:

Explanations

What are TWAIN and WIA?

February 8, 2010

TWAIN and WIA are standards for communicating between imaging devices (e.g. scanners) and software applications.

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Can I increase the resolution of my low resolution image?

October 12, 2009

Generally*, no.
Once you have scanned an image at too low a resolution, the damage has been done and the information you need in order to do a successful raster to vector conversion has been lost.

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Why are web images usually unsuitable for raster to vector conversion?

September 29, 2009

The logo below looks absolutely fine. It is clear and legible.

You may think you can just download it and vectorize it, but if you try to vectorize this logo, you’ll find it won’t work. Why?

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What is the right resolution for raster to vector conversion?

September 12, 2009

The right resolution for raster to vector conversion depends on the drawing you want to convert. If you are vectorizing small details you will need a higher resolution than if you are vectorizing large details.

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What is resolution and why is it important for raster to vector conversion?

September 5, 2009

Low resolution raster images are one of the most frequent causes of poor raster to vector conversion results.

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Converting PDF files to CAD

August 5, 2009

If you want to convert a PDF file to CAD, you need to be aware that there are two types of PDF file, raster and vector.
Internally, the two types of PDF file are quite different. Converting them to a CAD file format such as DXF requires different processes.

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Why Bezier curves are great for raster to vector conversion

July 24, 2009

If you are vectorizing curvy shapes such as contour maps, aerofoils, ship hulls or freeform artwork, it’s a good idea to set your raster to vector conversion software to convert them to a type of vector called a Bezier curve.

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Explaining the threshold – a vital setting for successful raster to vector conversion

July 6, 2009

Along with resolution, the threshold is the most important setting you need to choose when scanning a drawing for raster to vector conversion. Choosing the correct threshold can make the difference between raster to vector conversion success and failure.

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What is DXF?

June 18, 2009

DXF stands for Data eXchange Format. DXF is a vector image file type.

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Raster to vector conversion – the beginning

June 15, 2009

As the song says, “Let’s start at the very beginning, it’s a very good place to start” …
So what is raster to vector conversion (vectorization) anyway, and why do you need it?

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