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ImageMagick: convert image to B&W, high contrast!

开发者 https://www.devze.com 2023-01-30 09:04 出处：网络
I\'m trying to OCR certain images, but am having problems with the accuracy. I would like to see if I can improve accuracy by convert开发者_JAVA百科ing images to B&W, high contrast. Any ideas how
相关专题：graphicsimagemagick

I'm trying to OCR certain images, but am having problems with the accuracy. I would like to see if I can improve accuracy by convert开发者_JAVA百科ing images to B&W, high contrast. Any ideas how I can do that with ImageMagick?

Fred's two colour threshold ImageMagick script might help.

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