| # Per-task encoder scripts |
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| Each **complex** prediction type has its own Python file that reads how predictions are recorded (bbox, polygon, keypoint, etc.) and outputs one image or text file per encoding variant. |
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| | Task | Script | Prediction format | Outputs | |
| |------|--------|--------------------|---------| |
| | **depth_estimation** | `src/encoders/encode_depth.py` | `predictions[].url` (3 colormap URLs) | 3 images per sample: plasma, turbo, gray | |
| | **object_detection** | `src/encoders/encode_object_detection.py` | `predictions_type: "bbox"`, `predictions[].bbox` [x1,y1,x2,y2], `label`, `color_hex` | original, box_only, box_label, text_xyxy.txt, text_xywh.txt | |
| | **instance_segmentation** | `src/encoders/encode_instance_segmentation.py` | Polygon: `predictions[].polygon` [[x,y],...]. RLE: `predictions[].rle` (needs pycocotools to decode) | original, enc1..enc6 (overlay images), enc7_json.txt | |
| | **semantic_segmentation** | `src/encoders/encode_semantic_segmentation.py` | `predictions[].polygon` [[[x,y],...]] or [[x,y],...], `label` | same 7 as instance (enc1–7) | |
| | **referring_segmentation** | `src/encoders/encode_referring_segmentation.py` | `predictions[].polygon`, `label` (referring expression) | original, fill, contour, fill_contour, json.txt | |
| | **keypoint** | `src/encoders/encode_keypoint.py` | `predictions[].keypoint` (17×3: x,y,conf per COCO keypoint) | original, enc_a (same color), enc_b (per-person), enc_c (per-limb), enc_d_json.txt | |
| | **generation_*** / **lowlevel-*** | `src/encoders/encode_generation_lowlevel.py` | `predictions[].url` or `predictions[].image` (prediction image URL) | 1 image per sample | |
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| **Shared:** `src/common.py` provides `load_image_id_to_url()` (from `images/*.json`) and `fetch_image_cv2(url)` for overlay tasks. |
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| **Requirement for overlay tasks:** `images/*.json` (or root `images.json`) must list each image with `id` and `url` so that `image_id` in annotations can be resolved to the original image URL. |
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| **Run all:** `./run_encoding.sh` (uses 24 threads, 2 samples per task). |
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