write_class_knnT_write_class_knnWriteClassKnnWriteClassKnnwrite_class_knn（算子）

名称

write_class_knnT_write_class_knnWriteClassKnnWriteClassKnnwrite_class_knn — 将 k-NN 分类器保存在文件中。

签名

描述

write_class_knnwrite_class_knnWriteClassKnnWriteClassKnnWriteClassKnnwrite_class_knn writes the k-NN classifier KNNHandleKNNHandleKNNHandleKNNHandleKNNHandleknnhandle to the file given by FileNameFileNameFileNameFileNamefileNamefile_name. The classifier can be read again with read_class_knnread_class_knnReadClassKnnReadClassKnnReadClassKnnread_class_knn。Since the samples are an intrinsic component of a k-NN-classifier, the operator write_class_knnwrite_class_knnWriteClassKnnWriteClassKnnWriteClassKnnwrite_class_knn saves them within the class file. In contrast to other classifiers like SVM, there is no operator for saving the samples separately. The samples can be retrieved from a k-NN-classifier using get_sample_class_knnget_sample_class_knnGetSampleClassKnnGetSampleClassKnnGetSampleClassKnnget_sample_class_knn。The default HALCON file extension for the k-NN classifier is 'gnc'.

执行信息

• 多线程类型：可重入（与非独占算子并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 未采用并行化处理。

参数

结果

write_class_knnwrite_class_knnWriteClassKnnWriteClassKnnWriteClassKnnwrite_class_knn 返回 2 (H_MSG_TRUE)。 An exception is raised if it was not possible to open file FileNameFileNameFileNameFileNamefileNamefile_name。

可能的前趋

train_class_knntrain_class_knnTrainClassKnnTrainClassKnnTrainClassKnntrain_class_knn, read_class_knnread_class_knnReadClassKnnReadClassKnnReadClassKnnread_class_knn

另见

create_class_knncreate_class_knnCreateClassKnnCreateClassKnnCreateClassKnncreate_class_knn, read_class_knnread_class_knnReadClassKnnReadClassKnnReadClassKnnread_class_knn

参考文献

Marius Muja, David G. Lowe: “Fast Approximate Nearest Neighbors with Automatic Algorithm Configuration”; International Conference on Computer Vision Theory and Applications (VISAPP 09); 2009.

模块

基础