Oneself small white self-study, modelled on the steel seal on license plate recognition to lathe machine code, but always border than Numbers are bright, want to extract the text area but always border with Numbers connected domain unicom have what good way to handle this situation??



White is to identify the steps I modelled on the license plate recognition), but after a operation, want to extract text unicom area outline, but the border is brighter than words, the right Numbers easily and border unicom together, very headache,, (gaussian filtering to sobel, binarization - with online code under the smooth contour - in addition to the part of the noise of small area to expand under the, closed operation) went into this appearance==;

Or I am wrong thinking, and teach, I'm ready to extract the contour area sure position after affine transformation to identify (the original idea);
Anyway on card in pretreatment, head is big, this figure,

There's the \ T unicom is not very good to do==

CodePudding user response:

CodePudding user response:

O dalao taught ~

CodePudding user response:

The first picture is not very good,
This has a lot to do with shooting Angle, the external factors fixed, can save a lot of things