A Large-Scale Image Retrieval Method
An image retrieval, large-scale technology, applied in character and pattern recognition, special data processing applications, instruments, etc.
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[0145] This embodiment includes the following parts:
[0146] 1. Image feature extraction
[0147] In this embodiment, the public image data set CIFAR-10 is used to learn a hash function, encode image features, and then perform retrieval. Specifically, for each image in CIFAR-10, an original image pixel gray value feature is extracted: first, the gray level images of all images are obtained through color space conversion, and the gray value of each gray level image is divided into rows Splicing to obtain image features, each image is represented by an image feature, and each image feature is a vector.
[0148] 2. Hash function projection vector learning:
[0149] CIFAR-10 has a total of 10 categories, and 100 image features are randomly selected from each category to form an image feature training set, with a total of 1000 image features.
[0150] Then, learn the hash function projection vector for each category. Taking the first category as an example, it is divided into t...
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