read_class_knnT_read_class_knnReadClassKnnReadClassKnnread_class_knn（算子）
名称
read_class_knnT_read_class_knnReadClassKnnReadClassKnnread_class_knn — 从文件中读取 k-NN 分类器。
签名
def read_class_knn(file_name: str) -> HHandle
描述
read_class_knnread_class_knnReadClassKnnReadClassKnnReadClassKnnread_class_knn reads the saved classifier from the file
FileNameFileNameFileNameFileNamefileNamefile_name (see write_class_knnwrite_class_knnWriteClassKnnWriteClassKnnWriteClassKnnwrite_class_knn).
The values of the current classifier are overwritten.
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。
此算子返回一个句柄。请注意，即使该句柄被用作特定算子的输入参数，这些算子仍可能改变此句柄类型的实例状态。
参数
FileNameFileNameFileNameFileNamefileNamefile_name (输入控制) filename.read → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
File name of the classifier.
文件扩展名：
.gnc
KNNHandleKNNHandleKNNHandleKNNHandleKNNHandleknnhandle (输出控制) class_knn → HClassKnn, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
k-NN 分类器的句柄。
结果
read_class_knnread_class_knnReadClassKnnReadClassKnnReadClassKnnread_class_knn 返回 2 (H_MSG_TRUE)。
An exception is raised if it was not possible to open the file
FileNameFileNameFileNameFileNamefileNamefile_name or the file has the wrong format.
可能的后继
classify_class_knnclassify_class_knnClassifyClassKnnClassifyClassKnnClassifyClassKnnclassify_class_knn
另见
create_class_knncreate_class_knnCreateClassKnnCreateClassKnnCreateClassKnncreate_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