What is Picture to People ?

"Picture to People" (P2P) is a huge Computer Graphics project. It was started to create new softwares able to make 2D drawing, 3D rendering, vexel drawing, text effects, photo effects, image filtering and other complex Computer Graphics operations. It has been made from scratch, including its low level Computer Graphics libraries like Maccala. Nowadays, most final features produced for this project are released as free online tools available from its official website. This blog talks about Computer Graphics, mainly concerning Picture to People development.

"Only who makes has true knowledge. Knowledge is control. True power depends on total control. Only who makes from scratch has the real power."

Wednesday, October 10, 2007

Talking about vectorization

My tools for transforming raster images in vector based ones achieved a good point.

In fact, it was a funny challenge, since was not easy develop a math model to give results with a good balance between of smoothness and small loss of details.

The result's quality depends on several math properties of original raster image, like for example:
1) average curvature field;
2) topology distribution;
3) local and global entropy.

At first, let's see what kind of result we get by direct use of the vectorization tool over a common bad resolution bitmap:

(1) The original image

(2) The raster representation of same image after vectorization

Beginning from this very simple example, there already are several points to talk about:
1 - the original picture was very easy to vectorize;
2 - the result is not totally smooth;
3 - one intuitive way to see some math properties of source image;
4 - the vectorization was applied just once and without pre-processing.

I will discuss about all of that soon also including new examples.

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