如何在 Python 中将内存中保存的图像编码为 Base64？

Question

I already have the image saved in memory but I need to encode the image in base64. The intent is store the encode in a Pandas DataFrame because this code is inside a python script that will run inside SQL Server. I only need the encoding step. Everything else is working really well.

buf = io.BytesIO()
plt.savefig(buf, format='png')
buf.seek(0)
im = Image.open(buf)

with open(im, "rb") as image_file:
    encoded_string = base64.b64encode(image_file.read())

total_description['cartaX'] = 'data:image/png;base64,' + str(encoded_string) 

buf.close()

This is only the code for saving the plot in a image format in memory and trying to encode the image.

When I have the image saved I can encode, but when I store in memory I get an error. How can I do it? Save the image it's not a option because this is running in the database

Actual status I already can save de image in memory and encode de image in base64 in the VS code. But in the SQL server do not run. This is the code that I use and works on VS code

my_stringIObytes = io.BytesIO()                 # create file in memory
plt.savefig(my_stringIObytes, format='png')     # save file in memory 
my_stringIObytes.seek(0)                        # move to the beginning of file
my_base64_jpgData = base64.b64encode(my_stringIObytes.read())
total_description['cartaX'] = 'data:image/png;base64,' + str(my_base64_jpgData) 

What would you suggest I change for this work in SQL Server?

Answer 1

I found this code snippet on internet:

 import base64 def get_base64_encoded_image(image_path): with open(image_path, "rb") as img_file: return base64.b64encode(img_file.read()).decode('utf-8')

click
Hope these is helpful.