👌, thank you! 在 2018年12月24日星期一 UTC+8上午1:50:47，Seokbong Choi写道： > > Use HSV filter. You can use OpenCV. I guess you don't need to filter out V > range, but High S range may work. > > > On Sun, Dec 23, 2018 at 10:09 AM 童虎 <huhu...@gmail.com <javascript:>> > wrote: > >> >> I want use tessract to extra green text(which is Chinese word) >> [image: t_first_name_more_foggy.png] >> but the result it not well. >> >> And I save the `-c tessedit_wite_images=1` to see the middle image, which >> is not well >> >> [image: bb.png] >> >> >> How can I preprocess this picture? I'm new to image process.. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "tesseract-ocr" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to tesseract-oc...@googlegroups.com <javascript:>. >> To post to this group, send email to tesser...@googlegroups.com >> <javascript:>. >> Visit this group at https://groups.google.com/group/tesseract-ocr. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/tesseract-ocr/5a0f16e1-b6fb-41e9-8d3a-34bb6f2d1fac%40googlegroups.com >> >> <https://groups.google.com/d/msgid/tesseract-ocr/5a0f16e1-b6fb-41e9-8d3a-34bb6f2d1fac%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> >
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