The problem is with the input image. It does not have correct information about dpi.
Please preprocess image to 300 dpi for better output. ShreeDevi ____________________________________________________________ भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com On Wed, Mar 29, 2017 at 8:40 AM, <hkbb...@gmail.com> wrote: > I have also encountered this problem, have you solved this problem?Thank > you! > > 在 2017年1月5日星期四 UTC+8下午3:38:56，zdenop写道： >> >> Warning. Invalid resolution 0 dpi. >> >> >> this means that you input image has no information about DPI. This is >> problem of image generator. >> For bad accuracy please read relevant wiki. >> >> Zdenko >> >> On Thu, Jan 5, 2017 at 8:10 AM, <xunm...@gmail.com> wrote: >> >>> I met a problem of Invalid resolution like >>> >>> bogon:OCR zhiyao$ tesseract /Users/zhiyao/Desktop/OCR/kindle3.jpeg >>> ~/Desktop/OCR/kindle3 >>> >>> Tesseract Open Source OCR Engine v4.00.00alpha with Leptonica >>> >>> Warning. Invalid resolution 0 dpi. Using 70 instead. >>> >>> I changed different input images and file types, but the same problem >>> happened. >>> I suppoesd the bad accuracy is due to the lower default resolution(70) >>> The question is why my actual resolution cannot be caught. >>> >>> BTW,I used tesseract 4.00 on Mac. >>> >>> -- >>> 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. >>> To post to this group, send email to tesser...@googlegroups.com. >>> Visit this group at https://groups.google.com/group/tesseract-ocr. >>> To view this discussion on the web visit https://groups.google.com/d/ms >>> gid/tesseract-ocr/b416bb94-b467-45be-ba5d-a925c9e6bf67%40goo >>> glegroups.com >>> <https://groups.google.com/d/msgid/tesseract-ocr/b416bb94-b467-45be-ba5d-a925c9e6bf67%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > 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-ocr+unsubscr...@googlegroups.com. > To post to this group, send email to tesseract-ocr@googlegroups.com. > 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/f8866f37-ea01-4cdf-833c-7fb54cc2fd20% > 40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/f8866f37-ea01-4cdf-833c-7fb54cc2fd20%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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-ocr+unsubscr...@googlegroups.com. To post to this group, send email to tesseract-ocr@googlegroups.com. 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/CAG2NduUZ1u%2B2X_FC1PfXKi2%3Dg%2BT_m6OpY_TwodoC%2Bf%2B8qQ9%2BGQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
