GitHub

A bitmap vectorizer that can trace along the centerline of a stroke. The builtin inkscape 'trace bitmap' can only trace edges, thus resulting in double lines for most basic use ...

NOTE: This is python2 code. It was developed and tested with inkscape-0.92.3 -- It probably does not run with inkscape 1.0.1 and should not be needed. Inkscape 1.0.1 has the feature built-in under ...
GitHub

Convert pixels to SVG square-based shapes.

There are a few open source tools around that do bitmap -> vector tracing, for instance potrace which is the engine used by Inkscape and also has available python bindings (pypotrace). But sometimes, ...
Arctic Sea Ice

ICESat-2 Tools and Services

OpenAltimetry Discover, access, and visualize ICESat and ICESat-2 data. Key functions include on-the-fly plotting of segment elevations and photon clouds based on date and region of interest, ground ...
Hackaday

A Higher-End Pico-Based Oscilloscope

Hackers have been building their own basic oscilloscopes out of inexpensive MCUs and cheap LCD screens for some years now, but microcontrollers have recently become fast enough to actually make such ...
BBC

Units and data representation - OCR

Consider a simple black and white image. If 0 is black (or off) and 1 is white (or on), then a simple black and white picture can be created using binary. To create the picture, a grid can be set out ...
IEEE

Extracting and Retargeting Color Mappings from Bitmap Images of Visualizations

Abstract: Visualization designers regularly use color to encode quantitative or categorical data. However, visualizations “in the wild” often violate perceptual color design principles and may only be ...
kottke.org

kottke.org posts about design

The excellent Poster House museum in NYC currently has an exhibition up of posters by Peter Strausfeld. Between 1947 and 1980, Peter Strausfeld, a German refugee interned on the Isle of Man during ...