Google 图书如何运作?有没有开源替代方案?
有人要求我像 Google 图书那样在线出版一本完整的图书吗?即它是可查看和可打印的,但不可下载。
该过程基本上是“高质量扫描”吗?是否有任何开源解决方案可以在这些高质量图像上“批量生成”“水印”。假设您有原始图像。当用户在线查看它时,我重新创建图像,添加水印和图像顶部的一些其他文本“即时”,Python中是否存在这样的库:)
有什么提示吗?如果您以前做过此操作,请分享。
谢谢
I have been asked to publish a complete book online similar way Google Books does? i.e. it's viewable and printable but not download-able.
Is the process is basically "high quality scanning"? are there any open source solution to "mass generation" of "watermark" on those high quality images. Suppose you have an original image. and when the user views it online, I re-create the image add watermark and some other text on top of the image "on-the-fly" are there such library exist in python off course :)
Any tips? If you have done this before please share.
Thanks
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不幸的是,谷歌使用专利技术来扫描其书籍,因此您可能必须坚持使用传统方法。
基本上,您需要使用 OCR 应用程序扫描这本书(tesseract 很好),然后我会从扫描的文本生成 PDF/图像,最后在顶部添加水印。 Python 成像库 似乎是最好的工具。
Unfortunately Google uses a patented technique for scanning it's books, so you will probably have to stick to traditional methods.
Basically you will need to scan the book using an OCR application (tesseract is good), then I would generate a PDF/image from the scanned text, and finally add the watermark on top. The Python Imaging Library would seem to be the best tool for this.
对 Google 图书了解不多,但 Python 图像库 可以做水印(有 < a href="http://code.activestate.com/recipes/362879/" rel="nofollow noreferrer">ASPN 配方)。
Don't know much about Google Books, but Python Imaging Library can do watermarking (there's ASPN recipe for that).
请参阅 lashdot 关于复制 Google 照片 + 激光网格技术的问题。
See the slashdot question on reproducing Google's photo + laser grid technique.