Colour - Spi1d

ACEScc_OECF.spi1d

Version 1
From 0 1
Length 1024
Components 1
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colour_spi1d.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "/Users/kelsolaar/Documents/Development/Environments/colour-hdri/lib/python2.7/site-packages/colour/models/dataset/aces.py:319: RuntimeWarning: divide by zero encountered in log2\n",
      "  (np.log2(value) + 9.72) / 17.52,\n"
     ]
    }
   ],
   "source": [
    "import numpy as np\n",
    "\n",
    "import colour\n",
    "\n",
    "def write_spi1d(filename, data, from_min=0, from_max=1, decimals=15):\n",
    "    with open(filename, 'w') as lut_file:\n",
    "        lut_file.write(\"Version 1\\n\")\n",
    "        lut_file.write(\"From {0} {1}\\n\".format(from_min, from_max))\n",
    "        lut_file.write(\"Length {0}\\n\".format(len(data)))\n",
    "        lut_file.write(\"Components 1\\n\")\n",
    "        lut_file.write(\"{\\n\")\n",
    "        for value in data:\n",
    "            lut_file.write(\"  {0:.{1}f}\\n\".format(value, decimals))\n",
    "        lut_file.write(\"}\\n\")\n",
    "\n",
    "\n",
    "write_spi1d('../resources/others/ACEScc_OECF.spi1d',\n",
    "            colour.ACES_CC_COLOURSPACE.OECF(np.linspace(0, 1, 1024)))"
   ]
  }
 ],
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  "kernelspec": {
   "display_name": "Python 2",
   "language": "python",
   "name": "python2"
  },
  "language_info": {
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    "name": "ipython",
    "version": 2
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython2",
   "version": "2.7.9"
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}