fix: fix colpali preprocessing, add examples to readme#487
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📝 WalkthroughWalkthroughThis pull request introduces the ability to extend dense text embeddings with custom models and support for late interaction multimodal tasks. The Changes
Sequence Diagram(s)sequenceDiagram
participant U as User
participant TE as TextEmbedding
participant LI as LateInteractionMultimodalEmbedding
participant ONNX as OnnxMultimodalModel
U->>TE: Call add_custom_model(custom_model, pooling, normalization, sources, dim, model_file)
U->>LI: Request multimodal embedding (text & image)
LI->>TE: Process text embedding
LI->>ONNX: Prepare image input using pixel_values
ONNX->>ONNX: Assert tokenizer and create onnx_input
LI->>U: Return combined embedding result
✨ Finishing Touches
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Actionable comments posted: 0
🧹 Nitpick comments (1)
README.md (1)
157-176: Consider clarifying example image paths.The example effectively demonstrates the usage of late interaction multimodal models. However, the image paths used in the example (
./path/to/qdrant_pdf_doc_1_screenshot.jpg) might be confusing.Consider using more realistic example paths or adding a comment to clarify that these are placeholder paths:
doc_images = [ - "./path/to/qdrant_pdf_doc_1_screenshot.jpg", - "./path/to/colpali_pdf_doc_2_screenshot.jpg", + # Replace with actual image paths + "./examples/qdrant_doc.jpg", + "./examples/colpali_doc.jpg", ]
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📒 Files selected for processing (3)
README.md(2 hunks)fastembed/late_interaction_multimodal/colpali.py(1 hunks)fastembed/late_interaction_multimodal/onnx_multimodal_model.py(2 hunks)
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🔇 Additional comments (4)
fastembed/late_interaction_multimodal/colpali.py (1)
200-205: LGTM! Fixed placeholder generation based on pixel values.The changes correctly modify the placeholder generation to use
pixel_valuesinstead ofinput_ids, which aligns with the expected input structure for image processing.fastembed/late_interaction_multimodal/onnx_multimodal_model.py (2)
77-77: LGTM! Added early validation for tokenizer initialization.The assertion ensures that the tokenizer is properly initialized before it's used, preventing potential null pointer issues.
170-170: LGTM! Simplified image input handling.The code now directly uses
pixel_valuesas the key for encoded image data, making the input structure clearer and more consistent.README.md (1)
66-82: LGTM! Clear example for extending dense text embeddings.The example clearly demonstrates how to add custom models with specific parameters.
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