This article teaches you to pass Python The program replaces the background color of the certificate photo , In the future, the background of the certificate photo will not be distressed any more .
Ideas ：
1. First remove the background color of the original photo
2. Add a new background color
The steps are simple , have a lucid brain , It's easy to operate , Ten lines of code will do it , Make sure you will ！
1. Remove the original background color
import os
# Remove the background color
os.system('backgroundremover -i "'+str(in_path)+'" -o "cg_output.jpg"')
in_path Is the path of the original photo 、cg_output.jpg It's a picture with the background removed
2. Add new background color
# Add the background color
no_bg_image = Image.open("cg_output.jpg")
x, y = no_bg_image.size
new_image = Image.new('RGBA', no_bg_image.size, color=color)
new_image.paste(no_bg_image, (0, 0, x, y), no_bg_image)
new_image.save(out_path)
out_path Is the photo path after replacing the background color ,color Is the new color to be replaced , Fill in the corresponding English , such as Red ：red
color = "red"
# red ：red、 blue ：blue、 black ：black、 white ：white
Complete code
import os
from PIL import Image
# Input
in_path = "replace.jpg"
# Output
out_path = "out.png"
# Background color to replace
color = "red"
# red ：red、 blue ：blue、 black ：black、 white ：white
# Remove the background color
os.system('backgroundremover -i "'+str(in_path)+'" -o "cg_output.jpg"')
# Add the background color
no_bg_image = Image.open("cg_output.jpg")
x, y = no_bg_image.size
new_image = Image.new('RGBA', no_bg_image.size, color=color)
new_image.paste(no_bg_image, (0, 0, x, y), no_bg_image)
new_image.save(out_path)
The general steps of the code ：
take replace.jpg（ A picture with a blue background ）, Change to red （color） The background color of the photo out.png
Here's a reminder to readers , Output photos （out.png） want Save as png The format of , Other formats such as jpg The program will report an error .
Sample effect ：
Python Replace the background color of ID photo It's not hard to , The idea is to remove the background first , Add a new background color , I believe that you have learned
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