OCR字符识别 Halcon同类软件 Malcon 机器视觉软件 DoOcrSingleClassKnn DoOcrMultiClassKnn

Malcon的OCR字符识别应用起来很方便，可以保存和读取，

1、读取图片ReadImage

2、阈值分割Threshold

3、连通区域Connection

4、排序区域SortRegion

5、贴上类标签Class:=['a','a','a','a','b','b','b','b','c','c','c','c']

6、写入字符文件WriteOcrTrainf

7、读取字符文件：输出标签类名和数量ReadOcrTrainfNames

8、创建OCR句柄CreateOcrClassKnn

9、训练OCR句柄TrainfOcrClassKnn

10、单个字符分类DoOcrSingleClassKnn

11、多个字符分类DoOcrMultiClassKnn

12、清除字符句柄ClearOcrClassKnn

13、获取字符区域的位置坐标AreaCenter

14、设置显示字体SetDisplayFont

15、显示字符信息DispMessage

ReadImage(moImage, 'a1.bmp')
Threshold(moImage, thRegion, 0, 50)
Connection(thRegion, thRegion)
//区域从左到右，从上到下排序
SortRegion(thRegion, StRegion,'character', 'true', 'row')
Class:=['a','a','a','a','b','b','b','b','c','c','c','c']
WriteOcrTrainf(StRegion,moImage,Class,'KNNletters.trf')
ReadOcrTrainfNames('KNNletters.trf',name,count)
CreateOcrClassKnn(15,15,'','',name,'','',ocrHandle)
TrainfOcrClassKnn(ocrHandle,'KNNletters.trf','','')
//开始分类
DoOcrSingleClassKnn(StRegion,moImage,ocrHandle,1,1,Class2,Confidence)
DoOcrMultiClassKnn(StRegion,moImage,ocrHandle,Class3,Confidence2)
ClearOcrClassKnn(ocrHandle)
//把结果显示出来
AreaCenter(StRegion,Area,Row,Column)
SetDisplayFont(3600,40,'','true','false')
DispMessage(3600,Class3,'',Row,Column,'red','false')