sharp-cli
Version:
CLI for sharp.
70 lines (61 loc) • 2.31 kB
JavaScript
/*!
* The MIT License (MIT)
*
* Copyright (c) 2019 Mark van Seventer
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
// @see https://sharp.pixelplumbing.com/api-operation#normalise
// Strict mode.
// Package modules.
const pick = require('lodash.pick')
// Local modules.
const queue = require('../../lib/queue')
const options = {
lower: {
default: 1,
desc: 'Percentile below which luminance values will be underexposed',
type: 'number'
},
upper: {
default: 99,
desc: 'Percentile below which luminance values will be overexposed',
type: 'number'
}
}
const optionNames = Object.keys(options)
// Command builder.
const builder = (yargs) => {
return yargs
.strict()
.epilog('For more information on available options, please visit https://sharp.pixelplumbing.com/api-operation#normalise')
.example('$0 normalise')
.options(options)
.group(optionNames, 'Command Options')
}
// Command handler.
const handler = (args) => queue.push(['normalise', (sharp) => sharp.normalise(pick(args, optionNames))])
// Exports.
module.exports = {
command: 'normalise',
aliases: 'normalize',
describe: 'Enhance output image contrast by stretching its luminance to cover the full dynamic range',
builder,
handler
}