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Update Auto Multiple Choice Marking authored by Robert Alexander Crowell's avatar Robert Alexander Crowell
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Auto-Multiple-Choice-Marking.md
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## 1. Scan answer sheets and convert ## 1. Scan answer sheets
1. After the exam, scan the answer sheets and have them sent to you via eMail as a PDF file. **New as of 10.12.2024**
**Hint:** You can scan as many pages as the scanner will physically take. It will split the files into chunks automatically. 1. After the exam, scan the answer sheets as follows. On all large D-MATH scanners/printers, you will find under "Quick Sets" the option "D-MATH scan AMC exam".
![scan-quick-sets](uploads/065359ace1a16810f24edce5e39e7dc0/scan-quick-sets.jpg)
2. Once scanned, you will receive an eMail with instructions. Follow it to find your scanned, converted and optimized files.
![output](uploads/f37ffc1c2e8b4ded3c82779b3fb40322/output.jpg)
**Hint:** You can scan as many pages as the scanner will physically take.
<details><summary>Old way of doing it / pre 10.12.2024 with settings.</summary>
1. After the exam, scan the answer sheets and have them sent to your eMail.
2. Then [log into tango via ThinLink](https://blogs.ethz.ch/isgdmath/tango/) (or use a physical D-MATH Linux client), go to [https://mail.ethz.ch](https://mail.ethz.ch) and download the scans. 2. Then [log into tango via ThinLink](https://blogs.ethz.ch/isgdmath/tango/) (or use a physical D-MATH Linux client), go to [https://mail.ethz.ch](https://mail.ethz.ch) and download the scans.
...@@ -27,6 +38,7 @@ ...@@ -27,6 +38,7 @@
This will convert all JPEG images to grayscale, map the darkest 35% of pixels to black and the brightest 5% to white. (The answer recognition will run with less uncertainty for images with higher contrast). This will convert all JPEG images to grayscale, map the darkest 35% of pixels to black and the brightest 5% to white. (The answer recognition will run with less uncertainty for images with higher contrast).
**Feel free to test other values (e.g. 40%,95%) and give feedback on which works best!** **Feel free to test other values (e.g. 40%,95%) and give feedback on which works best!**
</details>
## 2. Data capture with the Auto Multiple Choice software ## 2. Data capture with the Auto Multiple Choice software
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