Created
March 16, 2017 00:06
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Code (broken) to apply a LUT on the server side
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| let fs = require('fs'); | |
| let getPixels = require('get-pixels'); | |
| let ndArrayOps = require('ndarray-ops'); | |
| let parseCubeLUT = require('parse-cube-lut'); | |
| let applyCubeLUT = require('apply-cube-lut'); | |
| let savePixels = require('save-pixels'); | |
| fs.readFile('./luts/heulandite.cube', 'utf8', (err, rawLutData) => { | |
| if (err) { | |
| console.error(err); | |
| return; | |
| } | |
| let lut = parseCubeLUT(rawLutData); | |
| console.log('Parsed LUT data...'); | |
| getPixels('./images/input-small.jpg', (err, ndArray) => { | |
| if (err) { | |
| console.error(err); | |
| return; | |
| } | |
| console.log('Got image ndarray...'); | |
| ndArrayOps.mulseq(ndArray, 1.0 / 255.0); | |
| applyCubeLUT(ndArray, ndArray, lut); | |
| ndArrayOps.mulseq(ndArray, 255.0); | |
| console.log('Applied LUT...'); | |
| let writer = fs.createWriteStream('./output/lut-applied.jpg'); | |
| writer.on('error', (err) => { | |
| console.error('Error writing to file:', err); | |
| }); | |
| writer.on('finish', () => { | |
| console.log('All writes are now complete.'); | |
| }); | |
| savePixels(ndArray, 'jpg', { quality: 100 }).pipe(writer); | |
| }); | |
| }); |
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