For this we use Labview Vision Builder tool.
We open and create a New inspection.
![[image%255B6%255D.png]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQTKKO6xcvdqpqN3ZUHMdDCaxw-wV7WI-I60oOKROkx5axE0BHt7p9-LwR8KobTc8wlCbqzjx2sjAMyDPesKMCEOmwzJNstdxVjy7ay1hf4yxz_wfKP7OXQ4kOTj4ZUp-7glQ2uDtUv_bV/s1600/image%25255B6%25255D.png)
Then we have to create a character type that recognizes our camera and therefore we must train her, we must also bear in mind that affects us the light, we can not do it where we want so it is advisable to use a controlled site I recommend that but you know make one visit my input and make a box of artificial vision. In the face recognition pst I explain how light influences and other factors to artificial vision.
To train our camera we need to create a file of text with certain typeface and size that contains all the characters you will be using so containing uppercase, lowercase, accents, numbers and all kinds of symbols you want it recognizes, this is like a small child who can read you want, but of course must be taught before.
To speed the process started that I'm going to find as it is a repetitive task.
This template will attached to the end in a compressed file to download, you Imprimis and within the workplace who receive controlled capture for use in the Vision Builder program.
We're going to Simulate tab Adquisition and as we have done in facial recognition.
And we accept we should be the screen in this way.
The next thing we do is choose our camera for real-time can modify documents for our camera we discover the password.
So we go to Acquire image.
Now we have to recognize all the text, for this we go to the next tool.
We chose a ROI in what will be our password is a place to read, we can move the paper and passes a particular site and we read it. I have chosen this is the green box, password will be 6 characters.
We're going to Threshold and modify as interested. We can change the size and other settings to teach our camera.
Now it say what we want to compare our password that is therefore assessed if so, we'll put our Limits and password.
When we finish because we accept and continue with the next step. We have to put some text and a table to point where we want to analyze the password, the next step for the procedure, we go to Custom overlay.
We named it as always.
First we name the second we chose the name of the comparison operation of the Read / Verify Text, add it true when you pass (to my I get false because it has assessed where the box is not the password) and accept.
The new state we add a Custom overlay correct password as we have done before.
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