Depth study used in image processing areas should be said that for a long time, relevant research results also have a lot of accumulated, starting from the project and the best practice is the most rapid and effective means of learning, I think, there have been prior to the actual verification code identification project, just to have time today to think before doing projects show up in another form, there is no direct selection of items I've been on the line as an object to explain, but another to find a data site, its after verification code to study from scratch to build their own recognition model, mainly: summary - practice - - harvest.
Long-winded here, then I do not say, directly into the body of the content of it.
This article selected target site is 12306, I believe we are well-known it, do not give out the verification code here linked sites, I believe you are smart you can easily find out, here are a few code examples official website theme, as follows:
