feat: datasets関連を追加

datasets/.gitignore

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+# 全てのファイルを除外
+*/*
+
+# 例外
+!.gitignore
+!README.md
+!**/data.yaml
+!**/README*.txt

datasets/README.md

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+# カスタムデータセット
+
+Roboflowというサービスを使用してデーターセットを作成しています。
+
+学習や評価に使用するデータセットは、
+
+- [サトウキビ](https://universe.roboflow.com/hoku/sugarcane-3vhxz/dataset/11)
+- [パイナップル](https://universe.roboflow.com/hoku/pineapple-thsih/dataset/7)
+
+から`YOLO v8`形式でダウンロードし、下記を参考に`train`, `valid`, `test`を各ディレクトリに配置してください。
+
+## ディレクトリ構造
+
+```plaintext
+datasets/
+    .gitignore
+    README.md
+    sugarcane/
+        data.yaml
+        README.dataset.txt
+        README.roboflow.txt
+        train/
+            images/
+                ...
+            labels/
+                ...
+        valid/
+            images/
+                ...
+            labels/
+                ...
+        test/
+            images/
+                ...
+            labels/
+                ...
+    pineapple/
+        data.yaml
+        README.dataset.txt
+        README.roboflow.txt
+        train/
+            images/
+                ...
+            labels/
+                ...
+        valid/
+            images/
+                ...
+            labels/
+                ...
+        test/
+            images/
+                ...
+            labels/
+                ...
+```

datasets/pineapple/README.dataset.txt

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+# Pineapple > 2023-07-19 9:57am
+https://universe.roboflow.com/hoku/pineapple-thsih
+
+Provided by a Roboflow user
+License: MIT
+

datasets/pineapple/README.roboflow.txt

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+
+Pineapple - v7 2023-07-19 9:57am
+==============================
+
+This dataset was exported via roboflow.com on July 31, 2024 at 3:58 PM GMT
+
+Roboflow is an end-to-end computer vision platform that helps you
+* collaborate with your team on computer vision projects
+* collect & organize images
+* understand and search unstructured image data
+* annotate, and create datasets
+* export, train, and deploy computer vision models
+* use active learning to improve your dataset over time
+
+For state of the art Computer Vision training notebooks you can use with this dataset,
+visit https://github.com/roboflow/notebooks
+
+To find over 100k other datasets and pre-trained models, visit https://universe.roboflow.com
+
+The dataset includes 619 images.
+Pineapple are annotated in YOLOv8 format.
+
+The following pre-processing was applied to each image:
+
+No image augmentation techniques were applied.
+
+

datasets/pineapple/data.yaml

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+path: datasets/sugarcane # dataset root dir
+train: train/images
+val: valid/images
+test: test/images
+
+nc: 2
+names: ['pineapple', 'weed']
+
+roboflow:
+  workspace: hoku
+  project: pineapple-thsih
+  version: 7
+  license: MIT
+  url: https://universe.roboflow.com/hoku/pineapple-thsih/dataset/7

datasets/sugarcane/README.dataset.txt

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+# sugarcane > 2023-07-19 9:58am
+https://universe.roboflow.com/hoku/sugarcane-3vhxz
+
+Provided by a Roboflow user
+License: CC BY 4.0
+

datasets/sugarcane/README.roboflow.txt

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+
+sugarcane - v11 2023-07-19 9:58am
+==============================
+
+This dataset was exported via roboflow.com on July 9, 2024 at 5:16 AM GMT
+
+Roboflow is an end-to-end computer vision platform that helps you
+* collaborate with your team on computer vision projects
+* collect & organize images
+* understand and search unstructured image data
+* annotate, and create datasets
+* export, train, and deploy computer vision models
+* use active learning to improve your dataset over time
+
+For state of the art Computer Vision training notebooks you can use with this dataset,
+visit https://github.com/roboflow/notebooks
+
+To find over 100k other datasets and pre-trained models, visit https://universe.roboflow.com
+
+The dataset includes 811 images.
+Sugarcane are annotated in YOLOv8 format.
+
+The following pre-processing was applied to each image:
+
+No image augmentation techniques were applied.
+
+

datasets/sugarcane/data.yaml

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+path: datasets/sugarcane # dataset root dir
+train: train/images
+val: valid/images
+test: test/images
+
+nc: 2
+names: ['sugarcane', 'weed']
+
+roboflow:
+  workspace: hoku
+  project: sugarcane-3vhxz
+  version: 11
+  license: CC BY 4.0
+  url: https://universe.roboflow.com/hoku/sugarcane-3vhxz/dataset/11