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- ImageNet-100 Dataset (Zipped ImageFolder)OverviewThis dataset is a 100-class subset of the ImageNet-2012 (ILSVRC2012) dataset. It was specifically curated for academic research in computer vision, including tasks such as image compression and color-to-grayscale conversion.Dataset DetailsClass Selection: 100 classes were selected using a fixed random seed (42) to ensure reproducibility.Format: The dataset is stored as zipped chunks to facilitate stable uploads and downloads of large files.Total Splits: * Train: ~130,000 images (distributed across 5 ZIP chunks).Validation: 5,000 images (distributed across 5 ZIP chunks).Labels: Full mapping of WordNet IDs to human-readable labels is provided in Labels.json.📂 Class CategoriesThe 100 classes are distributed across several logical categories:CategoryCountExamplesCanines (Dogs)13Siberian husky, Bloodhound, Miniature schnauzerBirds8Hummingbird, Sulphur-crested cockatoo, GoosePrimates4Chimpanzee, Howler monkey, MacaqueWild Mammals12Polar bear, Hippopotamus, Red panda, White wolfReptiles & Fish8Stingray, Bullfrog, Alligator lizardVehicles5Minibus, Moped, Trailer truckInstruments3Flute, Bassoon, TromboneHousehold Items18Teapot, Hourglass, Vacuum cleaner, Reflex cameraFood & Nature7Banana, Mushroom, Seashore, PotpieSports & Other22Volleyball, Baseball, Scuba diver, Stone wallHow to Use1. Download & ExtractSince the data is split into chunks, you must download and extract them to recreate the ImageFolder structure.Pythonfrom huggingface_hub import hf_hub_download
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  import zipfile
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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- # Example for one chunk
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- path = hf_hub_download(repo_id="asafaa/imagent100", filename="imagenet100_train_part1.zip", repo_type="dataset")
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- with zipfile.ZipFile(path, 'r') as zip_ref:
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- zip_ref.extractall("./data")
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- 2. Local Training (PyTorch)Once extracted, use torchvision.datasets.ImageFolder:Pythonfrom torchvision.datasets import ImageFolder
 
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+ ---
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+ license: apache-2.0
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+ task_categories:
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+ - image-classification
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+ tags:
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+ - imagenet
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+ - computer-vision
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+ - imagenet-100
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+ - image-compression
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+ - decolorization
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+ size_categories:
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+ - 100K<n<1M
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+ ---
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+
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+ # ImageNet-100 Dataset (Zipped ImageFolder)
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+
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+ ### Overview
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+ This dataset is a 100-class subset of the ImageNet-2012 (ILSVRC2012) dataset. It was specifically curated for academic research in computer vision, including tasks such as image compression and color-to-grayscale conversion (decolorization).
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+
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+ ### Dataset Details
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+ * **Class Selection**: 100 classes were selected using a fixed random seed (42) to ensure reproducibility.
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+ * **Format**: The dataset is stored as zipped chunks (10 files total) to facilitate stable uploads and high-speed downloads.
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+ * **Total Splits**:
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+ * **Train**: ~130,000 images, distributed across 5 ZIP chunks (`part1` to `part5`).
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+ * **Validation**: 5,000 images, distributed across 5 ZIP chunks (`part1` to `part5`).
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+ * **Labels**: A complete mapping of WordNet IDs to human-readable labels is included in the `Labels.json` file.
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+
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+ ### 📂 Class Categories
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+ The 100 selected classes cover a diverse range of categories:
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+
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+ | Category | Count | Examples |
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+ | :--- | :---: | :--- |
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+ | **Canines (Dogs)** | 13 | Siberian husky, Bloodhound, Miniature schnauzer |
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+ | **Birds** | 8 | Hummingbird, Sulphur-crested cockatoo, Goose |
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+ | **Primates** | 4 | Chimpanzee, Howler monkey, Macaque |
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+ | **Wild Mammals** | 12 | Polar bear, Hippopotamus, Red panda, White wolf |
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+ | **Reptiles & Fish** | 8 | Stingray, Bullfrog, Alligator lizard |
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+ | **Vehicles** | 5 | Minibus, Moped, Trailer truck |
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+ | **Instruments** | 3 | Flute, Bassoon, Trombone |
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+ | **Household Items** | 18 | Teapot, Hourglass, Vacuum cleaner, Reflex camera |
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+ | **Food & Nature** | 7 | Banana, Mushroom, Seashore, Potpie |
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+ | **Sports & Other** | 22 | Volleyball, Baseball, Scuba diver, Stone wall |
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+
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+ ---
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+
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+ ### How to Use
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+
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+ #### 1. Automatic Download and Extraction
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+ Since the data is split into multiple chunks, use the following script to reconstruct the `ImageFolder` structure.
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+
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+ ```python
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+ import os
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  import zipfile
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+ from huggingface_hub import hf_hub_download
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+
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+ repo_id = "asafaa/imagent100"
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+ target_dir = "./imagenet100"
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+
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+ def download_and_extract(split, num_parts=5):
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+ for i in range(1, num_parts + 1):
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+ filename = f"imagenet100_{split}_part{i}.zip"
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+ print(f"Downloading {filename}...")
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+ path = hf_hub_download(repo_id=repo_id, filename=filename, repo_type="dataset")
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+
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+ with zipfile.ZipFile(path, 'r') as zip_ref:
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+ zip_ref.extractall(target_dir)
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+ print(f"Finished extracting {split} split.")
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+ # Download both splits
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+ download_and_extract("train")
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+ download_and_extract("val")