bmp 이미지 각각 R,G,B 단일 bmp 이미지로 변경 python code

bmp 이미지는 b, g, r 순서로 저장되어 있어 나눌때
b, g, r = cv2.split(bgr_image)로 나눠야 한다.

import cv2
import os
import matplotlib.pyplot as plt
output_folder = "./output_split/"

from os import listdir
from os.path import isfile, join

# cwd = os.getcwd()
cwd = "D:\Projects\testimages"
onlyfiles = [os.path.join(cwd, f) for f in os.listdir(cwd) if 
os.path.isfile(os.path.join(cwd, f))]

for filename in onlyfiles:
    print(filename)
    head, tail = os.path.split(filename)
    filename = tail
    filename, file_extension = os.path.splitext(filename)
    print(filename)
    # filename = "testfilename"
    file_path = cwd + "/" + filename + ".bmp"

    # get bmp image and show
    bgr_image = cv2.imread(file_path)

    # bmp image split to Red Image, Green Image, Blue Image
    b, g, r = cv2.split(bgr_image)

    #os.mkdir(output_folder) 
    # save Red Image, Green Image, Blue Image jpg

    cv2.imwrite(os.path.join(output_folder, filename + "_R.bmp"), r)
    cv2.imwrite(os.path.join(output_folder, filename + "_G.bmp"), g)
    cv2.imwrite(os.path.join(output_folder, filename + "_B.bmp"), b)

파일 경로명은 각자 알맞게 수정해서 사용하기

plt로 보고 싶다면

plt.imshow(r)
plt.title("Red Image")
plt.show()