RichardScottOZ

RichardScottOZ

import time 
from IPython.display import Audio, display

def allDone():
  display(Audio(url='http://blogfiles.wfmu.org/SW/waka_waka.mp3', autoplay=True))

allDone()

def countdown(t): 

RichardScottOZ

#!/bin/sh

log() {
  format="$1"; shift
  # shellcheck disable=SC2059
  >&2 printf "$format\n" "$@"
}

usage() {
  >&2 cat <<EOF

RichardScottOZ

RichardScottOZ

Ripping data from pseudocolour images

Because viridis, like all good colourmaps, is perceptually linear, it's easy to get the data from it: just use a greyscale version of the image. But you can rip the data from any pseudocolour image if you know (or can guess) the colourmap.

In the rip-data.py example, here's the approach:

1. Read the image and transform the values to the range 0-1.
2. Guess the colourmap, in this case it's viridis. Matplotlib conveniently gives us the RGB triples that make up a colourmap.

RichardScottOZ

RichardScottOZ

RichardScottOZ

RichardScottOZ

RichardScottOZ