These are usually because libpng/libtiff Eric are not present, did you confirm the leptonica installed those dependencies?
Sent from my iPhone > On 21 Jan 2015, at 05:56, Purohith Nayak <[email protected]> wrote: > > Hi, > I installed leptonica then tesseract and everything went well, But when i > try to pass a .png file it gives > Error in pixReadStreamPng: function not present > Error in pixReadStream: png: no pix returned > Error in pixRead: pix not read > Unsupported image type > >> On Saturday, September 22, 2012 at 12:57:17 PM UTC+5:30, zdenop wrote: >> Hi, >> >> first of all: there is leptonica 1.69 and tesseract-ocr 3.02 in in Ubuntu >> 12.4 LTS Precise Pangolin. So maybe you can rebuild packages from there. >> >> Next: >> Did you try to run "sudo ldconfig" [1] after installing leptonica? >> If it does not work, than try to set LIBLEPT_HEADERSDIR (see ./configure >> --help) e.g. LIBLEPT_HEADERSDIR=/usr/local/include/leptonica ./configure >> >> If it does not help, send config.log (from tesseract-ocr) >> >> [1] http://code.google.com/p/tesseract-ocr/wiki/ReadMe#Linux >> >> -- >> Zdenko >>> On Fri, Sep 21, 2012 at 11:08 PM, Osman Masood <[email protected]> wrote: >>> Hello everyone, >>> I'm trying to install leptonica 1.69 and Tesseract v3.01 using the exact >>> instructions found in their respective README files. Leptonica installs >>> without a problem; however, whenever I try to run ./configure (even after >>> running ./autogen.sh) it says: configure: error: leptonica library missing. >>> These are the commands I'm using to install each, which are exactly in >>> accordance with the README/INSTALL files: >>> >>> For leptonica 1.69: >>> ./configure >>> make >>> sudo make install >>> >>> For Tesseract 3.01: >>> ./autogen.sh >>> ./configure >>> > configure: error: leptonica library missing. >>> >>> I'm really confused, can one of you gurus help me out? >>> Much thanks! >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "tesseract-ocr" group. >>> To post to this group, send email to [email protected] >>> To unsubscribe from this group, send email to >>> [email protected] >>> For more options, visit this group at >>> http://groups.google.com/group/tesseract-ocr?hl=en > > -- > 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 post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/tesseract-ocr. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/3c4398c4-9f7c-4eb6-88d1-b93da28646f6%40googlegroups.com. > 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/16F8922F-C7B7-484A-B0AC-3A52A1144223%40gmail.com. For more options, visit https://groups.google.com/d/optout.

