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Jonas Denenberg

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  • Homepage
    coinshow.us
  • Location
    Virginia
  1. It might have been referring to another site that's also making an AI grader. Their grader hasn't been released yet though. I'm the one who made the AI grader, by the way. I just made an account to respond to people on this thread :)
  2. Hi, I've never used the NGC discussion board before (until now, to reply to you) but I made AI grader. Regarding your first point, I realize that it probably a *bit* sketchy that someone like @Bignubnumismatics here with a brand new account is posting a link on the NGC chatboard but I can assure you that our site is 100% secure. The only info we ask for is your email, so that you can create an account and upload images. When it comes to passwords, we encrypt everything using the bcrypt (https://en.wikipedia.org/wiki/Bcrypt) algorithm, which means that everything is so secure that even I wouldn't be able to figure out your password, even if I wanted to. Your password is stored on our servers as a cryptic string of 70 letters that would take billions of years to decode. The reason you have to create an account is so that we can process your images, and so that we can save your grading data so that you can look at it later (anything can be deleted with the click of a button if you don't want us to store your data). Second, about the project, here is what I have going so far: - Deep Cameo Proof/Cameo Proof Detection - Strong/weak strike detection (Not very accurate as of now) - Contact Mark detection - Toning detection for silver coins (Using the Sunnywood https://coinshow.us/sunnywood System) - Color grading for copper coins - Corrosion detection for copper coins - Patina/Luster detection It also, obviously, determines the grade and eye appeal of your coin. Right now, the grader typically gets within 10-15% of the coin's actual grade, so it's more of an experiment as of now. You can provide feedback each time you grade a coin, which is used to improve the accuracy of coins that you grade in the future. I wish this wasn't necessary, but to support images of any quality, it is necessary. My goal is to get it down to 5% in the future. I've attached an image created by the contact mark detection algorithm, which is something I just added to the site yesterday. (I make updates frequently 😁 ). I also attached an image created by the toning detection algorithm. (If it looks confusing, it's using the sunnywood system https://coinshow.us/sunnywood)