Tesseract OCR in Computer Vision - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Tesseract OCR library.

Computer Vision

import [1]

Drag options to blanks, or click blank then click option'

Anumpy

Btensorflow

Cpytesseract

Dopencv

Attempts:

3 left

💡 Hint

Common Mistakes

Importing unrelated libraries like tensorflow or numpy.

Misspelling the library name.

The pytesseract library is the Python wrapper for Tesseract OCR.

2fill in blank

medium

Complete the code to read an image file for OCR processing.

Computer Vision

from PIL import Image
img = Image.open([1])

Drag options to blanks, or click blank then click option'

A'image.png'

Bimage.png

Copen('image.png')

DImage('image.png')

Attempts:

3 left

💡 Hint

Common Mistakes

Not putting the filename in quotes.

Passing a function call instead of a string.

The Image.open() function requires the filename as a string, so it must be in quotes.

3fill in blank

hard

Fix the error in the code to extract text from the image using pytesseract.

Computer Vision

text = pytesseract.[1](img)

Drag options to blanks, or click blank then click option'

Aread_text

Bimage_to_text

Cextract_text

Dimage_to_string

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect function names that do not exist in pytesseract.

Confusing the function with other OCR libraries.

The correct function to extract text from an image in pytesseract is image_to_string.

4fill in blank

hard

Fill both blanks to convert the image to grayscale and then extract text.

Computer Vision

gray_img = img.convert([1])
text = pytesseract.[2](gray_img)

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A'L'

Bimage_to_string

Cimage_to_data

D'RGB'

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'RGB' instead of 'L' for grayscale conversion.

Using image_to_data which returns detailed info, not plain text.

Converting to grayscale uses mode 'L'. Then image_to_string extracts the text.

5fill in blank

hard

Fill all three blanks to configure Tesseract path, read image, and extract text.

Computer Vision

import pytesseract
pytesseract.pytesseract.tesseract_cmd = [1]
from PIL import Image
img = Image.open([2])
text = pytesseract.[3](img)

Drag options to blanks, or click blank then click option'

A'C:/Program Files/Tesseract-OCR/tesseract.exe'

B'sample.jpg'

Cimage_to_string

D'/usr/bin/tesseract'

Attempts:

3 left

💡 Hint

Common Mistakes

Not setting the Tesseract path correctly causes errors.

Passing filename without quotes to Image.open.

Using wrong pytesseract function names.

Set the Tesseract executable path correctly (Windows example). Open the image file as a string filename. Use image_to_string to extract text.