Add example of semantic_segmentation

parnec · Mar 29, 2018 · 43c442d · 43c442d
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diff --git a/examples/semantic_segmentation/.readme/annotation.jpg b/examples/semantic_segmentation/.readme/annotation.jpg
diff --git a/examples/semantic_segmentation/README.md b/examples/semantic_segmentation/README.md
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+# Semantic Segmentation Example
+
+## Annotation
+
+```bash
+labelme data_annotated --labels="$(tr '\n' , < labels.txt)" --nodata
+```
+
+![](.readme/annotation.jpg)
+
+
+## Convert to VOC-like Dataset
+
+```bash
+# It generates:
+#   - data_dataset_voc/JPEGImages
+#   - data_dataset_voc/SegmentationClass
+#   - data_dataset_voc/SegmentationClassVisualization
+./labelme2voc.py labels.txt data_annotated data_dataset_voc
+```
+
+<img src="data_dataset/JPEGImages/2011_000003.jpg" width="33%" /> <img src="data_dataset/SegmentationClass/2011_000003.png" width="33%" /> <img src="data_dataset/SegmentationClassVisualization/2011_000003.jpg" width="33%" />
+
+Fig 1. JPEG image (left), PNG label (center), JPEG label visualization (right)  
+*Note that the reason why the label file is mostly black is it contains only very low label values (ex. `-1, 0, 4, 14`).*
diff --git a/examples/semantic_segmentation/data_annotated/2011_000003.jpg b/examples/semantic_segmentation/data_annotated/2011_000003.jpg