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Add most dominant colour to image stats #640

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Lovell Fuller
2020-07-15 19:58:54 +01:00
parent dcc42f8514
commit c42de19d2a
10 changed files with 130 additions and 36 deletions
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66
test/unit/stats.js
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@@ -27,6 +27,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.319914765248541));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0.7883011147075762));
const { r, g, b } = stats.dominant;
assert.strictEqual(40, r);
assert.strictEqual(40, g);
assert.strictEqual(40, b);
// red channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(255, stats.channels[0].max);
@@ -87,6 +92,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 0.3409031108021736));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 9.111356137722868));
const { r, g, b } = stats.dominant;
assert.strictEqual(248, r);
assert.strictEqual(248, g);
assert.strictEqual(248, b);
// red channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(255, stats.channels[0].max);
@@ -114,6 +124,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 0.06778064835816622));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 2.522916068931278));
const { r, g, b } = stats.dominant;
assert.strictEqual(248, r);
assert.strictEqual(248, g);
assert.strictEqual(248, b);
// red channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(255, stats.channels[0].max);
@@ -190,6 +205,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 0));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0));
const { r, g, b } = stats.dominant;
assert.strictEqual(72, r);
assert.strictEqual(104, g);
assert.strictEqual(72, b);
// alpha channel
assert.strictEqual(0, stats.channels[3].min);
assert.strictEqual(0, stats.channels[3].max);
@@ -218,6 +238,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 0.3851250782608986));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 10.312521863719589));
const { r, g, b } = stats.dominant;
assert.strictEqual(248, r);
assert.strictEqual(248, g);
assert.strictEqual(248, b);
// red channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(255, stats.channels[0].max);
@@ -246,6 +271,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.51758075132966));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 9.959951636662941));
const { r, g, b } = stats.dominant;
assert.strictEqual(40, r);
assert.strictEqual(136, g);
assert.strictEqual(200, b);
// red channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(true, isInRange(stats.channels[0].max, 254, 255));
@@ -306,6 +336,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 6.087309412541799));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 2.9250574456255682));
const { r, g, b } = stats.dominant;
assert.strictEqual(120, r);
assert.strictEqual(136, g);
assert.strictEqual(88, b);
// red channel
assert.strictEqual(35, stats.channels[0].min);
assert.strictEqual(254, stats.channels[0].max);
@@ -366,6 +401,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 1));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 15.870619016486861));
const { r, g, b } = stats.dominant;
assert.strictEqual(8, r);
assert.strictEqual(8, g);
assert.strictEqual(8, b);
// gray channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(101, stats.channels[0].max);
@@ -411,6 +451,17 @@ describe('Image Stats', function () {
})
);
it('Dominant colour', () =>
sharp(fixtures.inputJpgBooleanTest)
.stats()
.then(({ dominant }) => {
const { r, g, b } = dominant;
assert.strictEqual(r, 8);
assert.strictEqual(g, 136);
assert.strictEqual(b, 248);
})
);
it('Stream in, Callback out', function (done) {
const readable = fs.createReadStream(fixtures.inputJpg);
const pipeline = sharp().stats(function (err, stats) {
@@ -420,6 +471,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.319914765248541));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0.788301114707569));
const { r, g, b } = stats.dominant;
assert.strictEqual(40, r);
assert.strictEqual(40, g);
assert.strictEqual(40, b);
// red channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(255, stats.channels[0].max);
@@ -483,6 +539,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.319914765248541));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0.788301114707569));
const { r, g, b } = stats.dominant;
assert.strictEqual(40, r);
assert.strictEqual(40, g);
assert.strictEqual(40, b);
// red channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(255, stats.channels[0].max);
@@ -541,6 +602,11 @@ describe('Image Stats', function () {
assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.319914765248541));
assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0.788301114707569));
const { r, g, b } = stats.dominant;
assert.strictEqual(40, r);
assert.strictEqual(40, g);
assert.strictEqual(40, b);
// red channel
assert.strictEqual(0, stats.channels[0].min);
assert.strictEqual(255, stats.channels[0].max);