bombinans/poptimal
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Writes out the parameters as JSON

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Mike Lynch 2025-04-01 01:18:15 +00:00
parent 0fbe462779
commit 84034ef41c
1 changed files with 9 additions and 4 deletions
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13
poptimal.js
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@ -19,7 +19,9 @@ const CELL = 10;
const MAG = 2; const MAG = 2;
const WIDTH = 20; const WIDTH = 20;
const HEIGHT = WIDTH; const HEIGHT = WIDTH;
const VISIBLE_DOG = 1000; // number of pixels which have to be visible for a colour to be
// mentioned in the alt text
const VISIBLE_DOG = 400;
function randomise_params() { function randomise_params() {
const palette_name = random.choice(Array.from(PALETTES.keys())); const palette_name = random.choice(Array.from(PALETTES.keys()));
@ -190,16 +192,19 @@ async function main() {
const cfjson = await promises.readFile(argv.c); const cfjson = await promises.readFile(argv.c);
const cf = JSON.parse(cfjson); const cf = JSON.parse(cfjson);
const ts = String(Date.now());
const fn = (argv.o || ts) + '.png';
const fn = argv.o || String(Date.now()) + '.png'; const jsfn = (argv.o || ts) + '.json';
const imgfile = cf['working_dir'] + '/' + fn; const imgfile = cf['working_dir'] + '/' + fn;
const paramsfile = cf['working_dir'] + '/' + jsfn;
const params = randomise_params(); const params = randomise_params();
const colourf = params.palette === 'grayscale' ? cf['grayscale'] : cf['colour']; const colourf = params.palette === 'grayscale' ? cf['grayscale'] : cf['colour'];
const namer = new ColourNamer(); const namer = new ColourNamer();
console.log(`Loading colours ${colourf}`);
await namer.load_colours(colourf); await namer.load_colours(colourf);
@ -216,7 +221,6 @@ async function main() {
const pngData = resvg.render(); const pngData = resvg.render();
const pngBuffer = pngData.asPng(); const pngBuffer = pngData.asPng();
await promises.writeFile(imgfile, pngBuffer); await promises.writeFile(imgfile, pngBuffer);
// generate the alt_text last to check the image file histogram // generate the alt_text last to check the image file histogram
@ -224,6 +228,7 @@ async function main() {
const hist = await get_histogram(imgfile); const hist = await get_histogram(imgfile);
const alt_text = image_description(namer, params, hist); const alt_text = image_description(namer, params, hist);
await promises.writeFile(paramsfile, JSON.stringify(params));
console.log(alt_text); console.log(alt_text);
console.log(imgfile); console.log(imgfile);
if( cf['base_url'] ) { if( cf['base_url'] ) {