Could be a color performance issue. Text also has shadows.Tesseract does better on black on white. Try thresholding the image/ detect white color text make it black and then make the rest background white. Make sure you’re using the correct psm mode.
On Thu, Oct 30, 2025 at 1:26 PM Michael Schuh <[email protected]> wrote: > I am trying to extract the date and time from > > [image: time.png] > > I have successfully use tesseract to extract text from other images. > tesseract does not find any text in the above image, > > michael@argon:~/michael/trunk/src/tides$ tesseract time.png out > Estimating resolution as 142 > > michael@argon:~/michael/trunk/src/tides$ cat out.txt > > michael@argon:~/michael/trunk/src/tides$ ls -l out.txt > -rw-r----- 1 michael michael 0 Oct 30 08:58 out.txt > > Any help you can give me would be appreciated. I attached the time.png > file I used above. > > Thanks, > Michael > > -- > 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 [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/tesseract-ocr/77ac0d2b-7796-4f17-8bc6-0e70a9653adan%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/77ac0d2b-7796-4f17-8bc6-0e70a9653adan%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 [email protected]. To view this discussion visit https://groups.google.com/d/msgid/tesseract-ocr/CADEFw15Ywvhp8fv_7VrL0knQ-2PgOv04oCg9mOjJsN7xOH1POg%40mail.gmail.com.
