Photometric normalization before CNN descriptor extraction, especially CLAHE, improves image retrieval across day and night and stays competitive on daylight benchmarks.
Efficient indexing of billion-scale datasets of deep descriptors
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No Fear of the Dark: Image Retrieval under Varying Illumination Conditions
Photometric normalization before CNN descriptor extraction, especially CLAHE, improves image retrieval across day and night and stays competitive on daylight benchmarks.