toddh
Skinner...
Posts: 66
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Post by toddh on Feb 26, 2013 20:16:43 GMT -6
Witnessing the scanner process at NAFA in Stoughton, WI. first hand, the rats are scanned back down on scanner. This is more easily understood if you think of the scanner like a light board or overhead projecter. The rat basically casts a shadow on the light board. The scanner measures in "Pixils" and has a predetermined measurement assigned to "X" amount of Pixils. The entire surface area of the rat is not truly measured as you would think as the scanner has to take in account the shadow cast by overhanging fur at the skirt which gives a false reading of size/length on the scanner and that is why NAFA has not been able to use this system for scanning Coons.
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Post by seldom on Feb 26, 2013 20:52:22 GMT -6
Witnessing the scanner process at NAFA in Stoughton, WI. first hand, the rats are scanned back down on scanner. This is more easily understood if you think of the scanner like a light board or overhead projecter. The rat basically casts a shadow on the light board. The scanner measures in "Pixils" and has a predetermined measurement assigned to "X" amount of Pixils. The entire surface area of the rat is not truly measured as you would think as the scanner has to take in account the shadow cast by overhanging fur at the skirt which gives a false reading of size/length on the scanner and that is why NAFA has not been able to use this system for scanning Coons. Please explain what you mean Todd by "over-hanging fur at the skirt"? I believe Ron just said that they scan the entire back which I take as nose to tail, not nose to skirt. My original question was whether or not the cm2(pixels your term) of the back fur from the skirt to tail is or is not counted in calcuating size with the scanning process? |
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Post by TrapperRon on Feb 27, 2013 19:46:23 GMT -6
They are scanned from the nose to the skirt. The scanner ends when the angle at the tail end turns in. Pinning out at the skirt will help. So it is important to pull those edges down as far as possible. Then there will only be a small triangle not scanned. Just got a bit more info on it. A rat that made XXL when sized with a tape or by eye will still be an XXL with the scanner. A long narrow rat with a long triangle at the tail may loose size due to poor handling.
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Post by northof50 on Feb 28, 2013 17:21:28 GMT -6
In the archives there was some scanning done about the otter, and how the system works.
memory is that one was done with an ironing board..really 10 inches wide but was only so long..so many squae CM, put it into such and such size, the triangle on the end is not scanned on otter
A grader still has an optium to go up or down a size grade when they are doing them on leather grading stage.
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