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hello everyone Gabriel here and today we are going to learn how to use the mark detection OCR engine to capture checkboxes like those ones here and signatures like those ones down here the first step let's create a new field for that signature down here I will create a new field here and I'm going to call it second signature and now I have to create a zone for that field over our signature field OCR zones mode and then let's create the zone here since it moves a little bit I might want to anchor it and I will anchor it to that text here and since it is a single word I will just set it to one the fuzziness I click OK and now the extra step that we have to take is to open the Advanced Options here you click here and now instead of using a standard OCR engine I'm just going to select mark detection and here you can see the threshold level everything is set to show the threshold level and I can use either the threshold or entities count for the signature I'm going to use threshold and here that's the threshold that Chronos Gaines reading if I have my trigger level set to small smaller it will be true and if it is set to higher it will be false since I do have a signature I want to have the threshold the trigger level lower than that I'm going to just type in 8 and you can see it is true now I click OK and now you can see the field here on the forum view is set to true that means we do have a signature now on the other document let's make sure that Chronos can can read and you can see it is set to false so again the first thing we have to do let's enlarge a little bit that area here and it is still lit reading false let's open the Advanced Settings settings and see how the threshold reads that's 229 and the other step I have to make sure I do is to turn adjust off now you can see the threshold actually keeps the same so what I have to do is just reduce the trigger level that have to be Chu now it is set to true and when I go back to the other document it works as well that's for the signature now let's take a look at the check boxes I have a box for yes and I play box for no I'm going to create two more fields student yes and student no now I will create the OCR field for the first one for yes and this time I want to be very careful I'll just select exactly inside the box and again I'm going to anchor it to that word here fuzziness at one because it is a single world I'll click OK and then let's open the advanced set settings if we change to mark detection and here since it is a word we might want to use enter discount you can see it counts zero it might be a good way I will just increase this to Cho so it is set to false and click OK now let's create for the know again I select the student no field push your zones mode and then let's create the box inside the other box and there we go now let's open again the Advanced Settings and let's not forget never to turn edges off and do the same thing for the other field and change to mark detection and instead of threshold let's make any discount you can see here it is 12 so if it is set to something smaller than that it is going to be true okay so it is true now let's change that one also turn off edges there we go and you can see now the the reading changes that's for now so I'm going to make that of five okay and now let's see how it works on the other documents you can see here force and student noise set to true that's perfect now let's see how it works on the order document we have the students yes set to true and here no set to false you can see here that the zone is moving so let's anchor it that's also a very important step and I'm going to set the fuzzy very small and now let's see how it goes for the second page you can see the zone doesn't move much but the result result is always the desirable I'm just going to check and try to move the zone a little bit let's remove it and create a new one here there we go and now let's make sure it's triggered okay it is still set to false so you might have some problems like those ones but now you can see it is the position is better but now it's reading false let's the read again we have here ten so you might have to reduce it let's make it a nine and you can see it's true now and false here and the same thing here here is correct so that's it that's how you use the mark detection OCR engine to have your check boxes and your signatures captured you can also check our manual and the link is going to be on the description to see how you can use the detection the signature detection to export the actual bitmap for the signature on your exports so that's it guys I hope you liked it and I will see you on the next tutorial bye bye