scanning
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scanning [2015/12/02 07:41] – sbw | scanning [2023/08/16 13:22] (current) – sbw | ||
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====== Scanning SBW magazines ====== | ====== Scanning SBW magazines ====== | ||
+ | Given the first stage of the project is largely complete, this page is more for information. It may help other organisations undertaking digital history projects. | ||
===== 1. Remove the magazines from the springback binder ===== | ===== 1. Remove the magazines from the springback binder ===== | ||
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===== 3. Scan the magazine ===== | ===== 3. Scan the magazine ===== | ||
- | Scan the pages one at a time, into a multipage PDF. | + | Scan the pages one at a time, into a multipage PDF. A high end office scanner found in most large corporates is ideal - modern one scan quickly and at high quality. |
I use the following settings: | I use the following settings: | ||
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High end office scanners normally default to PDF these days. Normally you have about 60 seconds after you have scanned the previous page to scan the next page, in order to keep it as one document. I find that it takes about 15 seconds/ | High end office scanners normally default to PDF these days. Normally you have about 60 seconds after you have scanned the previous page to scan the next page, in order to keep it as one document. I find that it takes about 15 seconds/ | ||
- | It may be possible to use the automatic document feeder for more recent | + | It may be possible to use the automatic document feeder for magazines |
Before you start scanning in earnest, check that the quality of the scan is as high as possible. Spend some time trying various settings to see which works best. Any areas that are not text/ | Before you start scanning in earnest, check that the quality of the scan is as high as possible. Spend some time trying various settings to see which works best. Any areas that are not text/ | ||
+ | |||
+ | Also note that the best quality for OCR may not be the best for other purposes eg photos. | ||
**1. Black and white – text/line art setting** | **1. Black and white – text/line art setting** | ||
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Insert the magazines back inside the springback binder. Don't restaple them – we'll look for a better method of archiving that doesn' | Insert the magazines back inside the springback binder. Don't restaple them – we'll look for a better method of archiving that doesn' | ||
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+ | ===== Other notes ===== | ||
+ | Technical notes - to come back and fill in more detail on: | ||
+ | * Double sided scans via newer photocopiers | ||
+ | * Use of OcrMyPDF (including Tesseract) for OCRing | ||
+ | * + OnlineOCR | ||
+ | * Centering magazines | ||
+ | * Use of GhostScript to reduce file size | ||
+ | * Use of PDFSAM to merge double sided files (not needed if double sided scanner is used) | ||
+ | * Use of iconv to remove some non-printing characters | ||
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scanning.txt · Last modified: 2023/08/16 13:22 by sbw