read_ocr_class_knnT_read_ocr_class_knnReadOcrClassKnnReadOcrClassKnnread_ocr_class_knn (算子)
名称
read_ocr_class_knnT_read_ocr_class_knnReadOcrClassKnnReadOcrClassKnnread_ocr_class_knn — 从文件中读取 OCR 分类器。
签名
def read_ocr_class_knn(file_name: str) -> HHandle
描述
read_ocr_class_knnread_ocr_class_knnReadOcrClassKnnReadOcrClassKnnReadOcrClassKnnread_ocr_class_knn reads an OCR classifier that has been
stored with write_ocr_class_knnwrite_ocr_class_knnWriteOcrClassKnnWriteOcrClassKnnWriteOcrClassKnnwrite_ocr_class_knn。
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.
File extension:
.onc, .okc, .fnt
OCRHandleOCRHandleOCRHandleOCRHandleOCRHandleocrhandle (输出控制) ocr_knn → HOCRKnn, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handle of the OCR classifier.
结果
如果参数有效，算子 read_ocr_class_knnread_ocr_class_knnReadOcrClassKnnReadOcrClassKnnReadOcrClassKnnread_ocr_class_knn 返回值 2 ( H_MSG_TRUE )。如有必要，则抛出异常。
可能的后继
classify_class_knnclassify_class_knnClassifyClassKnnClassifyClassKnnClassifyClassKnnclassify_class_knn
另见
create_ocr_class_knncreate_ocr_class_knnCreateOcrClassKnnCreateOcrClassKnnCreateOcrClassKnncreate_ocr_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
光学字符识别/光学字符验证