Operator Reference

HALCON Operator Reference / OCR / K-Nearest Neighbors
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deserialize_ocr_class_knnT_deserialize_ocr_class_knnDeserializeOcrClassKnnDeserializeOcrClassKnndeserialize_ocr_class_knn (Operator)

deserialize_ocr_class_knnT_deserialize_ocr_class_knnDeserializeOcrClassKnnDeserializeOcrClassKnndeserialize_ocr_class_knn — Deserialize a serialized k-NN-based OCR classifier.

Signature

deserialize_ocr_class_knn( : : SerializedItemHandle : OCRHandle)

Herror T_deserialize_ocr_class_knn(const Htuple SerializedItemHandle, Htuple* OCRHandle)

void DeserializeOcrClassKnn(const HTuple& SerializedItemHandle, HTuple* OCRHandle)

void HOCRKnn::DeserializeOcrClassKnn(const HSerializedItem& SerializedItemHandle)

static void HOperatorSet.DeserializeOcrClassKnn(HTuple serializedItemHandle, out HTuple OCRHandle)

void HOCRKnn.DeserializeOcrClassKnn(HSerializedItem serializedItemHandle)

def deserialize_ocr_class_knn(serialized_item_handle: HHandle) -> HHandle

Description

deserialize_ocr_class_knndeserialize_ocr_class_knnDeserializeOcrClassKnnDeserializeOcrClassKnndeserialize_ocr_class_knn deserializes a k-NN-based OCR classifier, that was serialized by serialize_ocr_class_knnserialize_ocr_class_knnSerializeOcrClassKnnSerializeOcrClassKnnserialize_ocr_class_knn (see fwrite_serialized_itemfwrite_serialized_itemFwriteSerializedItemFwriteSerializedItemfwrite_serialized_item for an introduction of the basic principle of serialization). The serialized OCR classifier is defined by the handle SerializedItemHandleSerializedItemHandleSerializedItemHandleserializedItemHandleserialized_item_handle. The deserialized values are stored in an automatically created OCR classifier with the handle OCRHandleOCRHandleOCRHandleOCRHandleocrhandle.

Execution Information

  • Multithreading type: reentrant (runs in parallel with non-exclusive operators).
  • Multithreading scope: global (may be called from any thread).
  • Processed without parallelization.

Parameters

SerializedItemHandleSerializedItemHandleSerializedItemHandleserializedItemHandleserialized_item_handle (input_control)  serialized_item → HSerializedItem, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Handle of the serialized item.

OCRHandleOCRHandleOCRHandleOCRHandleocrhandle (output_control)  ocr_knn → HOCRKnn, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Handle of the OCR classifier.

Result

If the parameters are valid, the operator deserialize_ocr_class_knndeserialize_ocr_class_knnDeserializeOcrClassKnnDeserializeOcrClassKnndeserialize_ocr_class_knn returns the value 2 ( H_MSG_TRUE) . If necessary, an exception is raised.

Possible Predecessors

fread_serialized_itemfread_serialized_itemFreadSerializedItemFreadSerializedItemfread_serialized_item, receive_serialized_itemreceive_serialized_itemReceiveSerializedItemReceiveSerializedItemreceive_serialized_item, serialize_ocr_class_knnserialize_ocr_class_knnSerializeOcrClassKnnSerializeOcrClassKnnserialize_ocr_class_knn

Possible Successors

classify_class_knnclassify_class_knnClassifyClassKnnClassifyClassKnnclassify_class_knn

See also

create_ocr_class_knncreate_ocr_class_knnCreateOcrClassKnnCreateOcrClassKnncreate_ocr_class_knn, serialize_ocr_class_knnserialize_ocr_class_knnSerializeOcrClassKnnSerializeOcrClassKnnserialize_ocr_class_knn

References

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

Module

OCR/OCV

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