CODEWITHSUNDEEP
python-3.xlibpngpython-tesseractlibtiffleptonica
Aswathi Mohankumar Nambiar
Aswathi Mohankumar Nambiar

Reputation: 457

Tesseract Open Source OCR Engine v3.05.00dev with Leptonica Warning in pixReadMemPng

I am trying to convert PNG image file to text using pytesseract. It is giving me the below error.
TesseractError: (1, 'Tesseract Open Source OCR Engine v3.05.00dev with Leptonica Warning in pixReadMemPng: work-around: writing to a temp file libpng warning: Application built with libpng-1.4.3 but running with 1.5.14 Error in pixReadStreamPng: png_ptr not made Error in pixReadMemPng: pix not read Error in pixReadMem: png: no pix returned Error during processing.')

When i do tesseract -v
tesseract 3.05.00dev
leptonica-1.72
libjpeg 9 : libpng 1.5.14 : libtiff 4.0.3 : zlib 1.2.5 : libopenjp2 2.1.0

Upvotes: 0

Views: 4971

Answers (2)

Avasarala sai pavan
Avasarala sai pavan

Reputation: 1

I faced the same problem:

In my pc tesseract engine version was 3.0.

when I installed tesseract engine of version 5.0 or greater and used its path as

pytesseract.pytesseract.tesseract_cmd=r"C:\Program Files (x86)\Tesseract-OCR\tesseract.exe"

Tesseract download link

Upvotes: 0

张一一
张一一

Reputation: 1

I also meet this problem, and I can't find the answer on the internet.

But I try to download the tesseract-ocr and install it, then:

  1. set environment variable, TESSDATA_PREFIX:"C:\Program Files (x86)\Tesseract-OCR\tessdata"
  2. add C:\Program Files (x86)\Tesseract-OCR to the path variable.
  3. edit pytesseract.py in Line 35, tesseract_cmd = 'C:\\Program Files (x86)\\Tesseract-OCR\\tesseract.exe'

When I call pytesseract.image_to_string(img) in anaconda prompt, it return a string. My Environment：

  • pytesseract 0.2.6
  • pillow 5.2.0
  • tesseract 4.00.00alpha

Upvotes: 0

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