Initial working version of VOC XML import

README.md

@@ -104,7 +104,7 @@ You can find examples of export files along with a description and schema on our
 |:-------------:|:---:|:----:|:-------:|:--------:|:---------:|:----------:|
 | **Point** | ☐ | ✗ | ☐ | ☐ | ☐ | ✗ |
 | **Line** | ☐ | ✗ | ✗ | ✗ | ✗ | ✗ |
-| **Rect** | ☐ | ✓ | ☐ | ☐ | ✓ | ✗ |
+| **Rect** | ☐ | ✓ | ✓ | ☐ | ✓ | ✗ |
 | **Polygon** | ☐ | ✗ | ☐ | ☐ | ✓ | ☐ |
 | **Label** | ☐ | ✗ | ✗ | ✗ | ✗ | ✗ |
 

src/data/ImportFormatData.ts

@@ -13,6 +13,10 @@ export const ImportFormatData: ImportFormatDataMap = {
  {
  type: AnnotationFormatType.YOLO,
  label: 'Multiple files in YOLO format along with labels names definition - labels.txt file.'
+ },
+ {
+ type: AnnotationFormatType.VOC,
+ label: 'Multiple files in VOC XML format.'
  }
  ],
  [LabelType.POINT]: [],

src/data/ImporterSpecData.ts

@@ -2,6 +2,7 @@ import {AnnotationFormatType} from './enums/AnnotationFormatType';
 import {AnnotationImporter} from '../logic/import/AnnotationImporter';
 import {COCOImporter} from '../logic/import/coco/COCOImporter';
 import {YOLOImporter} from '../logic/import/yolo/YOLOImporter';
+import {VOCImporter} from '../logic/import/voc/VOCImporter';
 
 export type ImporterSpecDataMap = Record<AnnotationFormatType, typeof AnnotationImporter>;
 
@@ -11,6 +12,6 @@ export const ImporterSpecData: ImporterSpecDataMap = {
  [AnnotationFormatType.CSV]: undefined,
  [AnnotationFormatType.JSON]: undefined,
  [AnnotationFormatType.VGG]: undefined,
- [AnnotationFormatType.VOC]: undefined,
+ [AnnotationFormatType.VOC]: VOCImporter,
  [AnnotationFormatType.YOLO]: YOLOImporter
 }

src/data/enums/AcceptedFileType.ts

@@ -1,5 +1,6 @@
 export enum AcceptedFileType {
  IMAGE = 'image/jpeg, image/png',
  TEXT = 'text/plain',
- JSON = 'application/json'
+ JSON = 'application/json',
+ XML = 'application/xml',
 }

src/logic/__tests__/import/voc/VOCImporter.tests.ts

@@ -0,0 +1,137 @@
+
+import { ImageData, LabelName, LabelRect} from '../../../../store/labels/types';
+import { AcceptedFileType } from '../../../../data/enums/AcceptedFileType';
+import { v4 as uuidv4 } from 'uuid';
+import { VOCImporter } from '../../../import/voc/VOCImporter';
+import { isEqual } from 'lodash';
+
+const getDummyImageData = (fileName: string): ImageData => {
+ return {
+ id: uuidv4(),
+ fileData: new File([''], fileName, { type: AcceptedFileType.IMAGE }),
+ loadStatus: true,
+ labelRects: [],
+ labelPoints: [],
+ labelLines: [],
+ labelPolygons: [],
+ labelNameIds: [],
+ isVisitedByYOLOObjectDetector: false,
+ isVisitedBySSDObjectDetector: false,
+ isVisitedByPoseDetector: false
+ };
+};
+
+const getDummyFileData = (fileName: string): File => {
+ return new File([''], fileName, { type: AcceptedFileType.TEXT });
+};
+
+class TestableVOCImporter extends VOCImporter {
+ public static testableParseAnnotationsFromFileString(document: Document, labelNames: Record<string, LabelName>)
+ :[LabelRect[], Record<string, LabelName>] {
+ return TestableVOCImporter.parseAnnotationsFromFileString(document, labelNames);
+ }
+}
+
+const parser = new DOMParser();
+const validTestDocument = parser.parseFromString(
+ `
+ <annotation>
+ <filename>test1.jpeg</filename>
+ <path>\\some-test-path\\test1.jpeg</path>
+ <size>
+ <width>100</width>
+ <height>200</height>
+ <depth>3</depth>
+ </size>
+ <segmented>0</segmented>
+ <object>
+ <name>annotation1</name>
+ <pose>Unspecified</pose>
+ <truncated>0</truncated>
+ <difficult>0</difficult>
+ <bndbox>
+ <xmin>10</xmin>
+ <ymin>20</ymin>
+ <xmax>30</xmax>
+ <ymax>50</ymax>
+ </bndbox>
+ </object>
+ <object>
+ <name>annotation2</name>
+ <pose>Unspecified</pose>
+ <truncated>0</truncated>
+ <difficult>0</difficult>
+ <bndbox>
+ <xmin>20</xmin>
+ <ymin>30</ymin>
+ <xmax>30</xmax>
+ <ymax>50</ymax>
+ </bndbox>
+ </object> 
+ </annotation>
+ `,
+ 'application/xml'
+);
+
+describe('VOCImporter parseAnnotationsFromFileString method', () => {
+ it('should return correctly for multiple annotations', () => {
+ // given
+ const emptyRecordSet: Record<string, LabelName> = {};
+
+ // when
+ const [annotations, newRecordSet] = TestableVOCImporter.testableParseAnnotationsFromFileString(validTestDocument, emptyRecordSet);
+
+ // then
+ expect(Object.keys(emptyRecordSet).length).toBe(0);
+ expect(newRecordSet).toEqual(expect.objectContaining({
+ 'annotation1': expect.objectContaining({ name: 'annotation1'}),
+ 'annotation2': expect.objectContaining({ name: 'annotation2'}),
+ }))
+ expect(annotations).toEqual([
+ expect.objectContaining({
+ rect: {
+ x: 10,
+ y: 20,
+ height: 30,
+ width: 20
+ },
+ labelId: newRecordSet['annotation1'].id
+ }),
+ expect.objectContaining({
+ rect: {
+ x: 20,
+ y: 30,
+ height: 20,
+ width: 10
+ },
+ labelId: newRecordSet['annotation2'].id
+ })
+ ]);
+ });
+
+ it('should reuse existing labels', () => {
+ // given
+ const existingRecordSet: Record<string, LabelName> = {
+ 'annotation2': {
+ id: 'foobar',
+ name: 'annotation2'
+ }
+ };
+
+ // when
+ const [annotations, newRecordSet] = TestableVOCImporter.testableParseAnnotationsFromFileString(validTestDocument, existingRecordSet);
+
+ // then
+ expect(Object.keys(existingRecordSet).length).toBe(1);
+ expect(newRecordSet).toEqual(expect.objectContaining({
+ 'annotation1': expect.objectContaining({ name: 'annotation1' }),
+ 'annotation2': expect.objectContaining({ name: 'annotation2', id: 'foobar' }),
+ }));
+ expect(annotations.length).toBe(2);
+ expect(annotations).toEqual(expect.arrayContaining([
+ expect.objectContaining({
+ labelId: 'foobar'
+ })
+ ]));
+ });
+});

src/logic/import/voc/VOCImporter.ts

@@ -0,0 +1,142 @@
+import {ImageData, LabelName, LabelRect} from '../../../store/labels/types';
+import {LabelUtil} from "../../../utils/LabelUtil";
+import {AnnotationImporter} from '../AnnotationImporter';
+import {LabelsSelector} from '../../../store/selectors/LabelsSelector';
+
+type FileParseResult = {
+ filename: string,
+ labeledBoxes: LabelRect[]
+};
+
+type VOCImportResult = {
+ labelNames: Record<string, LabelName>,
+ fileParseResults: FileParseResult[],
+};
+
+class DocumentParsingError extends Error {
+ constructor(message?: string) {
+ super(message);
+ this.name = "DocumentParsingError";
+ }
+}
+class AnnotationParsingError extends Error {
+ constructor(message?: string) {
+ super(message);
+ this.name = "AnnotationParsingError";
+ }
+}
+
+const parser = new DOMParser();
+
+export class VOCImporter extends AnnotationImporter {
+ public import(
+ filesData: File[],
+ onSuccess: (imagesData: ImageData[], labelNames: LabelName[]) => any,
+ onFailure: (error?:Error) => any
+ ): void {
+ try {
+ const inputImagesData: Record<string, ImageData> = VOCImporter.mapImageData();
+
+ this.loadAndParseFiles(filesData).then(results => {
+ for (const result of results.fileParseResults) {
+ if (inputImagesData[result.filename]) {
+ inputImagesData[result.filename].labelRects = result.labeledBoxes;
+ }
+ }
+
+ onSuccess(
+ Array.from(Object.values(inputImagesData)),
+ Array.from(Object.values(results.labelNames))
+ );
+ }).catch((error: Error) => onFailure(error));
+ } catch (error) {
+ onFailure(error as Error)
+ }
+ }
+
+ private loadAndParseFiles(files: File[]): Promise<VOCImportResult> {
+ return Promise.all(files.map((file: File) => file.text())).then((fileTexts: string[]) => 
+ fileTexts.reduce((current: VOCImportResult, fileText: string, currentIndex: number) => 
+ {
+ const fileName = files[currentIndex].name;
+ try {
+ return VOCImporter.parseDocumentIntoImageData(VOCImporter.tryParseVOCDocument(fileText), current);
+ } catch (e) {
+ if (e instanceof DocumentParsingError) {
+ throw new DocumentParsingError(`Failed trying to parse ${fileName} as VOC XML document.`)
+ } else if (e instanceof AnnotationParsingError) {
+ throw new AnnotationParsingError(`Failed trying to find required VOC annotations for ${fileName}.`)
+ } else {
+ throw e;
+ }
+ }
+ }, 
+ {
+ labelNames: {},
+ fileParseResults: [],
+ } as VOCImportResult)
+ );
+ }
+
+ private static tryParseVOCDocument(fileText: string): Document {
+ try {
+ return parser.parseFromString(fileText, 'application/xml');
+ } catch {
+ throw new DocumentParsingError();
+ }
+ }
+
+ protected static parseDocumentIntoImageData(document: Document, { fileParseResults, labelNames }: VOCImportResult): VOCImportResult {
+ const root = document.getElementsByTagName('annotation')[0];
+ const filename = root.getElementsByTagName('filename')[0].textContent;
+
+ try {
+ const [labeledBoxes, newLabelNames] = this.parseAnnotationsFromFileString(document, labelNames);
+
+ return {
+ labelNames: newLabelNames,
+ fileParseResults: fileParseResults.concat({
+ filename,
+ labeledBoxes
+ }),
+ };
+ } catch {
+ throw new AnnotationParsingError();
+ }
+ }
+
+ protected static parseAnnotationsFromFileString(document: Document, labelNames: Record<string, LabelName>): 
+ [LabelRect[], Record<string, LabelName>] {
+ const newLabelNames: Record<string, LabelName> = Object.assign({}, labelNames);
+ return [Array.from(document.getElementsByTagName('object')).map(d => {
+ const labelName = d.getElementsByTagName('name')[0].textContent;
+ const bbox = d.getElementsByTagName('bndbox')[0];
+ const xmin = parseInt(bbox.getElementsByTagName('xmin')[0].textContent);
+ const xmax = parseInt(bbox.getElementsByTagName('xmax')[0].textContent);
+ const ymin = parseInt(bbox.getElementsByTagName('ymin')[0].textContent);
+ const ymax = parseInt(bbox.getElementsByTagName('ymax')[0].textContent);
+ const rect = {
+ x: xmin,
+ y: ymin,
+ height: ymax - ymin,
+ width: xmax - xmin, 
+ };
+
+ if (!newLabelNames[labelName]) {
+ newLabelNames[labelName] = LabelUtil.createLabelName(labelName);
+ }
+
+ const labelId = newLabelNames[labelName].id;
+ return LabelUtil.createLabelRect(labelId, rect);
+ }), newLabelNames];
+ }
+
+ private static mapImageData(): Record<string, ImageData> {
+ return LabelsSelector.getImagesData().reduce(
+ (imageDataMap: Record<string, ImageData>, imageData: ImageData) => {
+ imageDataMap[imageData.fileData.name] = imageData;
+ return imageDataMap;
+ }, {}
+ );
+ }
+}

src/views/PopupView/ImportLabelPopup/ImportLabelPopup.tsx

@@ -64,7 +64,8 @@ const ImportLabelPopup: React.FC<IProps> = (
  const { getRootProps, getInputProps } = useDropzone({
  accept: {
  "application/json": [".json" ],
- "text/plain": [".txt"]
+ "text/plain": [".txt"],
+ "application/xml": [".xml"],
  },
  multiple: true,
  onDrop: (acceptedFiles) => {