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How to Convert a PNG Image to Base-64 Encoding for CSS Data URIs in Python?
How to Convert a PNG Image to Base-64 Encoding for CSS Data URIs in Python?
Oct 30, 2024 pm 12:32 PM
Embedding PNG Images in CSS Using Base-64 Encoding
Question:
How can I convert a PNG image to base-64 encoded format for use as a data URI in a CSS stylesheet?
Unix Command Line Solution:
Unfortunately, this question cannot be resolved using a Unix command line solution.
Python-Based Solution:
Answer:
To convert a PNG image to base-64 encoded format in Python, follow these steps:
- Import the base64 module.
- Read the binary contents of the PNG file using open(filepath, 'rb').read().
- Encode the binary data using base64.b64encode(binary_fc).
- Decode the base-64 encoded data to UTF-8 using decode('utf-8').
- Determine the file extension of the PNG image.
- Create a data URI using the following format: data:image/{ext};base64,{base64_utf8_str}.
Example Code:
<code class="python">import base64
binary_fc = open(filepath, 'rb').read() # fc aka file_content
base64_utf8_str = base64.b64encode(binary_fc).decode('utf-8')
ext = filepath.split('.')[-1]
dataurl = f'data:image/{ext};base64,{base64_utf8_str}'</code>
Note:
Remember to include the necessary prefix data:image/{ext};base64, for the data URI to be valid.
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