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Control level of sharpening via radius/flat/jagged #108

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Lovell Fuller
2014-11-10 16:20:04 +00:00
parent 47927ef47d
commit 86681100b7
6 changed files with 134 additions and 33 deletions
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14
test/bench/perf.js
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@@ -163,7 +163,7 @@ async.series({
deferred.resolve();
});
}
}).add('sharp-sharpen', {
}).add('sharp-sharpen-mild', {
defer: true,
fn: function(deferred) {
sharp(inputJpgBuffer).resize(width, height).sharpen().toBuffer(function(err, buffer) {
@@ -175,6 +175,18 @@ async.series({
}
});
}
}).add('sharp-sharpen-radius', {
defer: true,
fn: function(deferred) {
sharp(inputJpgBuffer).resize(width, height).sharpen(3, 1, 3).toBuffer(function(err, buffer) {
if (err) {
throw err;
} else {
assert.notStrictEqual(null, buffer);
deferred.resolve();
}
});
}
}).add('sharp-nearest-neighbour', {
defer: true,
fn: function(deferred) {

54
test/unit/sharpen.js
View File

@@ -7,7 +7,57 @@ var fixtures = require('../fixtures');
describe('Sharpen', function() {
it('sharpen image is larger than non-sharpen', function(done) {
it('specific radius and levels 0.5, 2.5', function(done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.sharpen(3, 0.5, 2.5)
.toFile(fixtures.path('output.sharpen-3-0.5-2.5.jpg'), function(err, info) {
if (err) throw err;
assert.strictEqual('jpeg', info.format);
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
done();
});
});
it('specific radius 3 and levels 2, 4', function(done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.sharpen(5, 2, 4)
.toFile(fixtures.path('output.sharpen-5-2-4.jpg'), function(err, info) {
if (err) throw err;
assert.strictEqual('jpeg', info.format);
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
done();
});
});
it('mild sharpen', function(done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.sharpen()
.toFile(fixtures.path('output.sharpen-mild.jpg'), function(err, info) {
if (err) throw err;
assert.strictEqual('jpeg', info.format);
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
done();
});
});
it('invalid radius', function(done) {
var isValid = true;
try {
sharp(fixtures.inputJpg).sharpen(1.5);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
});
it('sharpened image is larger than non-sharpened', function(done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.sharpen(false)
@@ -19,7 +69,7 @@ describe('Sharpen', function() {
assert.strictEqual(240, info.height);
sharp(fixtures.inputJpg)
.resize(320, 240)
.sharpen()
.sharpen(true)
.toBuffer(function(err, sharpened, info) {
if (err) throw err;
assert.strictEqual(true, sharpened.length > 0);