read_ocr_trainfT_read_ocr_trainfReadOcrTrainfReadOcrTrainfread_ocr_trainf (算子)
名称
read_ocr_trainfT_read_ocr_trainfReadOcrTrainfReadOcrTrainfread_ocr_trainf — 从文件中读取训练字符并转换为图像。
签名
def read_ocr_trainf(training_file: MaybeSequence[str]) -> Tuple[HObject, Sequence[str]]
描述
read_ocr_trainfread_ocr_trainfReadOcrTrainfReadOcrTrainfReadOcrTrainfread_ocr_trainf reads all characters from the specified file names
and converts them into images. The default HALCON file extension for the
OCR training file is 'trf'. The domain is defined according to the
foreground of the characters (as specified in write_ocr_trainfwrite_ocr_trainfWriteOcrTrainfWriteOcrTrainfWriteOcrTrainfwrite_ocr_trainf). The
names of the characters are returned in CharacterNamesCharacterNamesCharacterNamesCharacterNamescharacterNamescharacter_names. If more
than one file name is given the files are processed in the order of the file
names.
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
CharactersCharactersCharactersCharacterscharacterscharacters (输出对象) image-array → objectHImageHObjectHImageHobject * (byte / uint2)
Images read from file.
TrainingFileTrainingFileTrainingFileTrainingFiletrainingFiletraining_file (输入控制) filename.read(-array) → HTupleMaybeSequence[str]HTupleHtuple (string) (string) (HString) (char*)
Names of the training files.
默认值：
''
""
""
""
""
""
File extension:
.trf, .otr
CharacterNamesCharacterNamesCharacterNamesCharacterNamescharacterNamescharacter_names (输出控制) string-array → HTupleSequence[str]HTupleHtuple (string) (string) (HString) (char*)
Names of the read characters.
结果
如果参数值正确，算子 read_ocr_trainfread_ocr_trainfReadOcrTrainfReadOcrTrainfReadOcrTrainfread_ocr_trainf 返回值 2 ( H_MSG_TRUE )。否则将抛出异常。
可能的前趋
write_ocr_trainfwrite_ocr_trainfWriteOcrTrainfWriteOcrTrainfWriteOcrTrainfwrite_ocr_trainf
可能的后继
disp_imagedisp_imageDispImageDispImageDispImagedisp_image,
select_objselect_objSelectObjSelectObjSelectObjselect_obj,
zoom_image_sizezoom_image_sizeZoomImageSizeZoomImageSizeZoomImageSizezoom_image_size
替代
read_ocr_trainf_selectread_ocr_trainf_selectReadOcrTrainfSelectReadOcrTrainfSelectReadOcrTrainfSelectread_ocr_trainf_select
模块
光学字符识别/光学字符验证