Simple graphics API with transparency, polygons, reading image pixels?

Posted by M. Elkstein on Stack Overflow See other posts from Stack Overflow or by M. Elkstein
Published on 2010-06-11T09:00:34Z Indexed on 2010/06/11 9:12 UTC
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Filed under:

JavaScript

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python

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graphics

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canvas

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svg

I need a simple graphics library that supports the following functionality:

Ability to draw polygons (not just rectangles!) with RGBA colors (i.e., partially transparent),
Ability to load bitmap images,
Ability to read current color of pixel in a given coordinate.

Ideally using JavaScript or Python.

Seems like HTML 5 Canvas can handle #2 and #3 but not #1, whereas SVG can handle #1 and #2 but not #3. Am I missing something (about either of these two)? Or are there other alternatives?

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