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Break existing sharpen API to accept sigma and improve precision

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Lovell Fuller
2016-03-31 22:00:33 +01:00
parent ee21d2991c
commit b7a098fb28
8 changed files with 55 additions and 48 deletions
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16
test/unit/sharpen.js
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@@ -7,10 +7,10 @@ var fixtures = require('../fixtures');
describe('Sharpen', function() {
it('specific radius 10', function(done) {
it('specific radius 10 (sigma 6)', function(done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.sharpen(10)
.sharpen(6)
.toBuffer(function(err, data, info) {
assert.strictEqual('jpeg', info.format);
assert.strictEqual(320, info.width);
@@ -19,10 +19,10 @@ describe('Sharpen', function() {
});
});
it('specific radius 3 and levels 0.5, 2.5', function(done) {
it('specific radius 3 (sigma 1.5) and levels 0.5, 2.5', function(done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.sharpen(3, 0.5, 2.5)
.sharpen(1.5, 0.5, 2.5)
.toBuffer(function(err, data, info) {
assert.strictEqual('jpeg', info.format);
assert.strictEqual(320, info.width);
@@ -31,10 +31,10 @@ describe('Sharpen', function() {
});
});
it('specific radius 5 and levels 2, 4', function(done) {
it('specific radius 5 (sigma 3.5) and levels 2, 4', function(done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.sharpen(5, 2, 4)
.sharpen(3.5, 2, 4)
.toBuffer(function(err, data, info) {
assert.strictEqual('jpeg', info.format);
assert.strictEqual(320, info.width);
@@ -55,9 +55,9 @@ describe('Sharpen', function() {
});
});
it('invalid radius', function() {
it('invalid sigma', function() {
assert.throws(function() {
sharp(fixtures.inputJpg).sharpen(1.5);
sharp(fixtures.inputJpg).sharpen(-1.5);
});
});