Error with PIL import Image, and pytesser import
I am new to Python. I am attempting to create a Python OCR program, and am following a tutorial online for it. Here is the recommended code I use:
from PIL import Image
from pytesser import *
image_file = 'menu.tif'
im = Image.open(image_file)
text = image_to_string(im)
text = image_file_to_string(image_file)
text = image_file_to_string(image_file, graceful_errors=True)
print "=====output=======n"
print text
The tutorial link is found here. I am getting this error when running this code however.
from pytesser import *
ImportError: No module named 'pytesser'
I have followed the instructions, from installing OCR here and the PyTesser library here code(dot)google(dot)com/archive/p/pytesser/downloads (sorry because <10 rep i can't post more than 2 links).
This (see gyazo below) is a screenshot of my installation files so far, where "pytesser_v0.0.1" is my pytesser folder, "tesseract-master" was found on GitHub (probably not relevant), and "tessinstall" is the folder where I installed tesseract and finally pyimgr.py is my file I am attempting to run.
gyazo(dot)com/333f8a3333e87895558f26875a8a8487
I was also previously getting an error regarding PIL import Image. I should not be using PIL, so is there any other way I can import Image without PIL? maybe pillow?
My Python version is 3.5.2 and I am using windows 10.
请参阅https://codedump.io/share/bnzB430pwdI0/1/installing-pytesser这可能有帮助，（对不起，我不能评论它太低代表）
My first hunch is that your library is installed in a place that Python does not know.
import sys
print sys.path
If you execute those lines in Python it will show you where Python will look for eggs. Is the pytesser lib there?
Furthermore: As a side note: pip3 search tesseract will show you some other tesseract Python packages. So you can use the Python package manager.
将代码更改为：
"""OCR in Python using the Tesseract engine from Google
http://code.google.com/p/pytesser/
by Michael J.T. O'Kelly
V 0.0.1, 3/10/07"""
import PIL.Image
import subprocess
import util
import errors
tesseract_exe_name = 'tesseract' # Name of executable to be called at command line
scratch_image_name = "temp.bmp" # This file must be .bmp or other Tesseract-compatible format
scratch_text_name_root = "temp" # Leave out the .txt extension
cleanup_scratch_flag = True # Temporary files cleaned up after OCR operation
def call_tesseract(input_filename, output_filename):
"""Calls external tesseract.exe on input file (restrictions on types),
outputting output_filename+'txt'"""
args = [tesseract_exe_name, input_filename, output_filename]
proc = subprocess.Popen(args)
retcode = proc.wait()
if retcode!=0:
errors.check_for_errors()
def image_to_string(im, cleanup = cleanup_scratch_flag):
"""Converts im to file, applies tesseract, and fetches resulting text.
If cleanup=True, delete scratch files after operation."""
try:
util.image_to_scratch(im, scratch_image_name)
call_tesseract(scratch_image_name, scratch_text_name_root)
text = util.retrieve_text(scratch_text_name_root)
finally:
if cleanup:
util.perform_cleanup(scratch_image_name, scratch_text_name_root)
return text
def image_file_to_string(filename, cleanup = cleanup_scratch_flag, graceful_errors=True):
"""Applies tesseract to filename; or, if image is incompatible and graceful_errors=True,
converts to compatible format and then applies tesseract. Fetches resulting text.
If cleanup=True, delete scratch files after operation."""
try:
try:
call_tesseract(filename, scratch_text_name_root)
text = util.retrieve_text(scratch_text_name_root)
except errors.Tesser_General_Exception:
if graceful_errors:
im = PIL.Image.open(filename)
text = image_to_string(im, cleanup)
else:
raise
finally:
if cleanup:
util.perform_cleanup(scratch_image_name, scratch_text_name_root)
return text
if __name__=='__main__':
im = PIL.Image.open('phototest.tif')
text = image_to_string(im)
print text
try:
text = image_file_to_string('fnord.tif', graceful_errors=False)
except errors.Tesser_General_Exception, value:
print "fnord.tif is incompatible filetype. Try graceful_errors=True"
print value
text = image_file_to_string('fnord.tif', graceful_errors=True)
print "fnord.tif contents:", text
text = image_file_to_string('fonts_test.png', graceful_errors=True)
print text