Message:

<p>[QUOTE=&quot;GDJMSP, post: 3911210, member: 112&quot;]This what the OP said the purpose of his efforts is - </p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p>So, given his purpose Jason, what are we talking about here ? Teaching a program to grade coins based on pics of those coins from various sources ? Or are we talking about teaching a program to grade coins based on its own views of the coin ? </p><p><br /></p><p>Now I&#039;ll grant you, the OP then says this - </p><p><br /></p><p><br /></p><p><br /></p><p>So his stated intent, his true purpose, is to try and teach a machine to grade coins based on pics from all kinds of various sources. But the idea itself is doomed to failure before he ever starts - for the same reason people cannot be taught to grade coins, reliably and accurately, from pictures. Granted, people can be taught to do it in some cases, you just can&#039;t do it with all of them. That&#039;s because you never know if the picture is showing you everything you need to see, or if the picture is hiding something that can only be seen from a certain angle. </p><p><br /></p><p>Now, you also have to recognize that every professional grader there is, as well ass all knowledgeable graders who do not do it for a living, categorically state that you cannot grade coins based on single pictures, or even groups of pictures - and for the very same reasons that I stated above. </p><p><br /></p><p>So, if people can&#039;t do it, how could anyone ever expect a program to do it ? </p><p><br /></p><p><br /></p><p><br /></p><p>No, they&#039;re not red herrings at all. And again for the same reasons that I just stated above. </p><p><br /></p><p>As for this - </p><p><br /></p><p><br /></p><p><br /></p><p>I strongly disagree. I disagree because the two primary grading criteria, quality of luster and eye appeal, require the ability to think, to make subjective judgments, and no program and no machine can do that ! </p><p><br /></p><p>Will the day ever come when that can be done ? Perhaps, but it sure as heck aint here yet ![/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in