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Unverified Commit b8d62591 by justadudewhohacks Committed by GitHub
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Merge pull request #33 from justadudewhohacks/facelandmarks-fix

pad face landmark net input to square and center to prevent stretching of input image
parents fd698812 4177c46e
Showing with 258 additions and 79 deletions
.gitignore
node_modules
.rpt2_cache
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.rpt2_cache
.env*
tmp
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.npmignore
......@@ -4,4 +4,5 @@ node_modules
examples
test
proto
weights
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weights
tools
\ No newline at end of file
build/Rect.d.ts
......@@ -10,5 +10,6 @@ export declare class Rect implements IRect {
width: number;
height: number;
constructor(x: number, y: number, width: number, height: number);
toSquare(): Rect;
floor(): Rect;
}
build/Rect.js
......@@ -7,6 +7,19 @@ var Rect = /** @class */ (function () {
this.width = width;
this.height = height;
}
Rect.prototype.toSquare = function () {
var _a = this, x = _a.x, y = _a.y, width = _a.width, height = _a.height;
var diff = Math.abs(width - height);
if (width < height) {
x -= (diff / 2);
width += diff;
}
if (height < width) {
y -= (diff / 2);
height += diff;
}
return new Rect(x, y, width, height);
};
Rect.prototype.floor = function () {
return new Rect(Math.floor(this.x), Math.floor(this.y), Math.floor(this.width), Math.floor(this.height));
};
......
build/Rect.js.map
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build/faceLandmarkNet/FaceLandmarkNet.d.ts
......@@ -6,5 +6,7 @@ export declare class FaceLandmarkNet {
private _params;
load(weightsOrUrl: Float32Array | string | undefined): Promise<void>;
extractWeights(weights: Float32Array): void;
forwardTensor(imgTensor: tf.Tensor4D): tf.Tensor2D;
forward(input: tf.Tensor | NetInput | TNetInput): Promise<tf.Tensor2D>;
detectLandmarks(input: tf.Tensor | NetInput | TNetInput): Promise<FaceLandmarks>;
}
build/faceLandmarkNet/FaceLandmarkNet.js
......@@ -4,8 +4,10 @@ var tslib_1 = require("tslib");
var tf = require("@tensorflow/tfjs-core");
var convLayer_1 = require("../commons/convLayer");
var getImageTensor_1 = require("../commons/getImageTensor");
var padToSquare_1 = require("../padToSquare");
var Point_1 = require("../Point");
var toNetInput_1 = require("../toNetInput");
var utils_1 = require("../utils");
var extractParams_1 = require("./extractParams");
var FaceLandmarks_1 = require("./FaceLandmarks");
var fullyConnectedLayer_1 = require("./fullyConnectedLayer");
......@@ -45,6 +47,72 @@ var FaceLandmarkNet = /** @class */ (function () {
FaceLandmarkNet.prototype.extractWeights = function (weights) {
this._params = extractParams_1.extractParams(weights);
};
FaceLandmarkNet.prototype.forwardTensor = function (imgTensor) {
var params = this._params;
if (!params) {
throw new Error('FaceLandmarkNet - load model before inference');
}
return tf.tidy(function () {
var _a = imgTensor.shape.slice(), batchSize = _a[0], height = _a[1], width = _a[2];
var x = padToSquare_1.padToSquare(imgTensor, true);
var _b = x.shape.slice(1), heightAfterPadding = _b[0], widthAfterPadding = _b[1];
// work with 128 x 128 sized face images
if (heightAfterPadding !== 128 || widthAfterPadding !== 128) {
x = tf.image.resizeBilinear(x, [128, 128]);
}
var out = conv(x, params.conv0_params);
out = maxPool(out);
out = conv(out, params.conv1_params);
out = conv(out, params.conv2_params);
out = maxPool(out);
out = conv(out, params.conv3_params);
out = conv(out, params.conv4_params);
out = maxPool(out);
out = conv(out, params.conv5_params);
out = conv(out, params.conv6_params);
out = maxPool(out, [1, 1]);
out = conv(out, params.conv7_params);
var fc0 = tf.relu(fullyConnectedLayer_1.fullyConnectedLayer(out.as2D(out.shape[0], -1), params.fc0_params));
var fc1 = fullyConnectedLayer_1.fullyConnectedLayer(fc0, params.fc1_params);
var createInterleavedTensor = function (fillX, fillY) {
return tf.stack([
tf.fill([68], fillX),
tf.fill([68], fillY)
], 1).as2D(batchSize, 136);
};
/* shift coordinates back, to undo centered padding
((x * widthAfterPadding) - shiftX) / width
((y * heightAfterPadding) - shiftY) / height
*/
var shiftX = Math.floor(Math.abs(widthAfterPadding - width) / 2);
var shiftY = Math.floor(Math.abs(heightAfterPadding - height) / 2);
var landmarkTensor = fc1
.mul(createInterleavedTensor(widthAfterPadding, heightAfterPadding))
.sub(createInterleavedTensor(shiftX, shiftY))
.div(createInterleavedTensor(width, height));
return landmarkTensor;
});
};
FaceLandmarkNet.prototype.forward = function (input) {
return tslib_1.__awaiter(this, void 0, void 0, function () {
var netInput, _a;
return tslib_1.__generator(this, function (_b) {
switch (_b.label) {
case 0:
if (!(input instanceof tf.Tensor)) return [3 /*break*/, 1];
_a = input;
return [3 /*break*/, 3];
case 1: return [4 /*yield*/, toNetInput_1.toNetInput(input)];
case 2:
_a = _b.sent();
_b.label = 3;
case 3:
netInput = _a;
return [2 /*return*/, this.forwardTensor(getImageTensor_1.getImageTensor(netInput))];
}
});
});
};
FaceLandmarkNet.prototype.detectLandmarks = function (input) {
return tslib_1.__awaiter(this, void 0, void 0, function () {
var _this = this;
......@@ -52,9 +120,6 @@ var FaceLandmarkNet = /** @class */ (function () {
return tslib_1.__generator(this, function (_d) {
switch (_d.label) {
case 0:
if (!this._params) {
throw new Error('FaceLandmarkNet - load model before inference');
}
if (!(input instanceof tf.Tensor)) return [3 /*break*/, 1];
_a = input;
return [3 /*break*/, 3];
......@@ -65,37 +130,18 @@ var FaceLandmarkNet = /** @class */ (function () {
case 3:
netInput = _a;
outTensor = tf.tidy(function () {
var params = _this._params;
var imgTensor = getImageTensor_1.getImageTensor(netInput);
var _a = imgTensor.shape.slice(1), height = _a[0], width = _a[1];
imageDimensions = { width: width, height: height };
// work with 128 x 128 sized face images
if (imgTensor.shape[1] !== 128 || imgTensor.shape[2] !== 128) {
imgTensor = tf.image.resizeBilinear(imgTensor, [128, 128]);
}
var out = conv(imgTensor, params.conv0_params);
out = maxPool(out);
out = conv(out, params.conv1_params);
out = conv(out, params.conv2_params);
out = maxPool(out);
out = conv(out, params.conv3_params);
out = conv(out, params.conv4_params);
out = maxPool(out);
out = conv(out, params.conv5_params);
out = conv(out, params.conv6_params);
out = maxPool(out, [1, 1]);
out = conv(out, params.conv7_params);
var fc0 = tf.relu(fullyConnectedLayer_1.fullyConnectedLayer(out.as2D(out.shape[0], -1), params.fc0_params));
var fc1 = fullyConnectedLayer_1.fullyConnectedLayer(fc0, params.fc1_params);
return fc1;
return _this.forwardTensor(imgTensor);
});
_c = (_b = Array).from;
return [4 /*yield*/, outTensor.data()];
case 4:
faceLandmarksArray = _c.apply(_b, [_d.sent()]);
outTensor.dispose();
xCoords = faceLandmarksArray.filter(function (c, i) { return (i - 1) % 2; });
yCoords = faceLandmarksArray.filter(function (c, i) { return i % 2; });
xCoords = faceLandmarksArray.filter(function (_, i) { return utils_1.isEven(i); });
yCoords = faceLandmarksArray.filter(function (_, i) { return !utils_1.isEven(i); });
return [2 /*return*/, new FaceLandmarks_1.FaceLandmarks(Array(68).fill(0).map(function (_, i) { return new Point_1.Point(xCoords[i], yCoords[i]); }), imageDimensions)];
}
});
......
build/faceLandmarkNet/FaceLandmarkNet.js.map
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\ No newline at end of file
dist/face-api.js
......@@ -510,6 +510,19 @@
this.width = width;
this.height = height;
}
Rect.prototype.toSquare = function () {
var _a = this, x = _a.x, y = _a.y, width = _a.width, height = _a.height;
var diff = Math.abs(width - height);
if (width < height) {
x -= (diff / 2);
width += diff;
}
if (height < width) {
y -= (diff / 2);
height += diff;
}
return new Rect(x, y, width, height);
};
Rect.prototype.floor = function () {
return new Rect(Math.floor(this.x), Math.floor(this.y), Math.floor(this.width), Math.floor(this.height));
};
......@@ -1732,6 +1745,72 @@
FaceLandmarkNet.prototype.extractWeights = function (weights) {
this._params = extractParams$1(weights);
};
FaceLandmarkNet.prototype.forwardTensor = function (imgTensor) {
var params = this._params;
if (!params) {
throw new Error('FaceLandmarkNet - load model before inference');
}
return tidy(function () {
var _a = imgTensor.shape.slice(), batchSize = _a[0], height = _a[1], width = _a[2];
var x = padToSquare(imgTensor, true);
var _b = x.shape.slice(1), heightAfterPadding = _b[0], widthAfterPadding = _b[1];
// work with 128 x 128 sized face images
if (heightAfterPadding !== 128 || widthAfterPadding !== 128) {
x = image.resizeBilinear(x, [128, 128]);
}
var out = conv(x, params.conv0_params);
out = maxPool$1(out);
out = conv(out, params.conv1_params);
out = conv(out, params.conv2_params);
out = maxPool$1(out);
out = conv(out, params.conv3_params);
out = conv(out, params.conv4_params);
out = maxPool$1(out);
out = conv(out, params.conv5_params);
out = conv(out, params.conv6_params);
out = maxPool$1(out, [1, 1]);
out = conv(out, params.conv7_params);
var fc0 = relu(fullyConnectedLayer(out.as2D(out.shape[0], -1), params.fc0_params));
var fc1 = fullyConnectedLayer(fc0, params.fc1_params);
var createInterleavedTensor = function (fillX, fillY) {
return stack([
fill([68], fillX),
fill([68], fillY)
], 1).as2D(batchSize, 136);
};
/* shift coordinates back, to undo centered padding
((x * widthAfterPadding) - shiftX) / width
((y * heightAfterPadding) - shiftY) / height
*/
var shiftX = Math.floor(Math.abs(widthAfterPadding - width) / 2);
var shiftY = Math.floor(Math.abs(heightAfterPadding - height) / 2);
var landmarkTensor = fc1
.mul(createInterleavedTensor(widthAfterPadding, heightAfterPadding))
.sub(createInterleavedTensor(shiftX, shiftY))
.div(createInterleavedTensor(width, height));
return landmarkTensor;
});
};
FaceLandmarkNet.prototype.forward = function (input) {
return __awaiter$1(this, void 0, void 0, function () {
var netInput, _a;
return __generator$1(this, function (_b) {
switch (_b.label) {
case 0:
if (!(input instanceof Tensor)) return [3 /*break*/, 1];
_a = input;
return [3 /*break*/, 3];
case 1: return [4 /*yield*/, toNetInput(input)];
case 2:
_a = _b.sent();
_b.label = 3;
case 3:
netInput = _a;
return [2 /*return*/, this.forwardTensor(getImageTensor(netInput))];
}
});
});
};
FaceLandmarkNet.prototype.detectLandmarks = function (input) {
return __awaiter$1(this, void 0, void 0, function () {
var _this = this;
......@@ -1739,9 +1818,6 @@
return __generator$1(this, function (_d) {
switch (_d.label) {
case 0:
if (!this._params) {
throw new Error('FaceLandmarkNet - load model before inference');
}
if (!(input instanceof Tensor)) return [3 /*break*/, 1];
_a = input;
return [3 /*break*/, 3];
......@@ -1752,37 +1828,18 @@
case 3:
netInput = _a;
outTensor = tidy(function () {
var params = _this._params;
var imgTensor = getImageTensor(netInput);
var _a = imgTensor.shape.slice(1), height = _a[0], width = _a[1];
imageDimensions = { width: width, height: height };
// work with 128 x 128 sized face images
if (imgTensor.shape[1] !== 128 || imgTensor.shape[2] !== 128) {
imgTensor = image.resizeBilinear(imgTensor, [128, 128]);
}
var out = conv(imgTensor, params.conv0_params);
out = maxPool$1(out);
out = conv(out, params.conv1_params);
out = conv(out, params.conv2_params);
out = maxPool$1(out);
out = conv(out, params.conv3_params);
out = conv(out, params.conv4_params);
out = maxPool$1(out);
out = conv(out, params.conv5_params);
out = conv(out, params.conv6_params);
out = maxPool$1(out, [1, 1]);
out = conv(out, params.conv7_params);
var fc0 = relu(fullyConnectedLayer(out.as2D(out.shape[0], -1), params.fc0_params));
var fc1 = fullyConnectedLayer(fc0, params.fc1_params);
return fc1;
return _this.forwardTensor(imgTensor);
});
_c = (_b = Array).from;
return [4 /*yield*/, outTensor.data()];
case 4:
faceLandmarksArray = _c.apply(_b, [_d.sent()]);
outTensor.dispose();
xCoords = faceLandmarksArray.filter(function (c, i) { return (i - 1) % 2; });
yCoords = faceLandmarksArray.filter(function (c, i) { return i % 2; });
xCoords = faceLandmarksArray.filter(function (_, i) { return isEven(i); });
yCoords = faceLandmarksArray.filter(function (_, i) { return !isEven(i); });
return [2 /*return*/, new FaceLandmarks(Array(68).fill(0).map(function (_, i) { return new Point(xCoords[i], yCoords[i]); }), imageDimensions)];
}
});
......
dist/face-api.js.map
This source diff could not be displayed because it is too large. You can view the blob instead.
dist/face-api.min.js
This source diff could not be displayed because it is too large. You can view the blob instead.
src/Rect.ts
......@@ -18,6 +18,20 @@ export class Rect implements IRect {
this.height = height
}
public toSquare(): Rect {
let { x, y, width, height } = this
const diff = Math.abs(width - height)
if (width < height) {
x -= (diff / 2)
width += diff
}
if (height < width) {
y -= (diff / 2)
height += diff
}
return new Rect(x, y, width, height)
}
public floor(): Rect {
return new Rect(
Math.floor(this.x),
......
src/faceLandmarkNet/FaceLandmarkNet.ts
......@@ -4,9 +4,11 @@ import { convLayer } from '../commons/convLayer';
import { getImageTensor } from '../commons/getImageTensor';
import { ConvParams } from '../commons/types';
import { NetInput } from '../NetInput';
import { padToSquare } from '../padToSquare';
import { Point } from '../Point';
import { toNetInput } from '../toNetInput';
import { Dimensions, TNetInput } from '../types';
import { isEven } from '../utils';
import { extractParams } from './extractParams';
import { FaceLandmarks } from './FaceLandmarks';
import { fullyConnectedLayer } from './fullyConnectedLayer';
......@@ -41,31 +43,25 @@ export class FaceLandmarkNet {
this._params = extractParams(weights)
}
public async detectLandmarks(input: tf.Tensor | NetInput | TNetInput) {
if (!this._params) {
public forwardTensor(imgTensor: tf.Tensor4D): tf.Tensor2D {
const params = this._params
if (!params) {
throw new Error('FaceLandmarkNet - load model before inference')
}
const netInput = input instanceof tf.Tensor
? input
: await toNetInput(input)
let imageDimensions: Dimensions | undefined
const outTensor = tf.tidy(() => {
const params = this._params
let imgTensor = getImageTensor(netInput)
const [height, width] = imgTensor.shape.slice(1)
imageDimensions = { width, height }
return tf.tidy(() => {
const [batchSize, height, width] = imgTensor.shape.slice()
let x = padToSquare(imgTensor, true)
const [heightAfterPadding, widthAfterPadding] = x.shape.slice(1)
// work with 128 x 128 sized face images
if (imgTensor.shape[1] !== 128 || imgTensor.shape[2] !== 128) {
imgTensor = tf.image.resizeBilinear(imgTensor, [128, 128])
if (heightAfterPadding !== 128 || widthAfterPadding !== 128) {
x = tf.image.resizeBilinear(x, [128, 128])
}
let out = conv(imgTensor, params.conv0_params)
let out = conv(x, params.conv0_params)
out = maxPool(out)
out = conv(out, params.conv1_params)
out = conv(out, params.conv2_params)
......@@ -80,14 +76,58 @@ export class FaceLandmarkNet {
const fc0 = tf.relu(fullyConnectedLayer(out.as2D(out.shape[0], -1), params.fc0_params))
const fc1 = fullyConnectedLayer(fc0, params.fc1_params)
return fc1
const createInterleavedTensor = (fillX: number, fillY: number) =>
tf.stack([
tf.fill([68], fillX),
tf.fill([68], fillY)
], 1).as2D(batchSize, 136)
/* shift coordinates back, to undo centered padding
((x * widthAfterPadding) - shiftX) / width
((y * heightAfterPadding) - shiftY) / height
*/
const shiftX = Math.floor(Math.abs(widthAfterPadding - width) / 2)
const shiftY = Math.floor(Math.abs(heightAfterPadding - height) / 2)
const landmarkTensor = fc1
.mul(createInterleavedTensor(widthAfterPadding, heightAfterPadding))
.sub(createInterleavedTensor(shiftX, shiftY))
.div(createInterleavedTensor(width, height))
return landmarkTensor as tf.Tensor2D
})
}
public async forward(input: tf.Tensor | NetInput | TNetInput): Promise<tf.Tensor2D> {
const netInput = input instanceof tf.Tensor
? input
: await toNetInput(input)
return this.forwardTensor(getImageTensor(netInput))
}
public async detectLandmarks(input: tf.Tensor | NetInput | TNetInput) {
const netInput = input instanceof tf.Tensor
? input
: await toNetInput(input)
let imageDimensions: Dimensions | undefined
const outTensor = tf.tidy(() => {
const imgTensor = getImageTensor(netInput)
const [height, width] = imgTensor.shape.slice(1)
imageDimensions = { width, height }
return this.forwardTensor(imgTensor)
})
const faceLandmarksArray = Array.from(await outTensor.data())
outTensor.dispose()
const xCoords = faceLandmarksArray.filter((c, i) => (i - 1) % 2)
const yCoords = faceLandmarksArray.filter((c, i) => i % 2)
const xCoords = faceLandmarksArray.filter((_, i) => isEven(i))
const yCoords = faceLandmarksArray.filter((_, i) => !isEven(i))
return new FaceLandmarks(
Array(68).fill(0).map((_, i) => new Point(xCoords[i], yCoords[i])),
......
test/tests/e2e/faceLandmarkNet.test.ts
......@@ -31,7 +31,10 @@ describe('faceLandmarkNet', () => {
expect(result.getImageHeight()).toEqual(height)
expect(result.getShift().x).toEqual(0)
expect(result.getShift().y).toEqual(0)
expect(result.getPositions().map(({ x, y }) => ({ x, y }))).toEqual(faceLandmarkPositions)
result.getPositions().forEach(({ x, y }, i) => {
expectMaxDelta(x, faceLandmarkPositions[i].x, 0.1)
expectMaxDelta(y, faceLandmarkPositions[i].y, 0.1)
})
})
})
......
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