Python获取图片像素BGR值并生成纯色图

pip install opencv-python -i https://pypi.douban.com/simple
pip install numpy -i https://pypi.douban.com/simple

#!/user/bin/env python
# coding=utf-8
"""
@project : csdn
@author  : 剑客阿良_ALiang
@file   : make_pic_tool.py
@ide    : PyCharm
@time   : 2022-01-11 08:34:31
"""
import cv2
import os
import numpy as np
import uuid
 
 
# 获取图片坐标bgr值
def get_pix_bgr(image_path: str, x: int, y: int):
    ext = os.path.basename(image_path).strip().split('.')[-1]
    if ext not in ['png', 'jpg']:
        raise Exception('format error')
    img = cv2.imread(image_path)
    px = img[x, y]
    blue = img[x, y, 0]
    green = img[x, y, 1]
    red = img[x, y, 2]
    return blue, green, red
 
 
# 构建纯色图
def make_one_color_pic(output_dir: str, image_path: str, coordinates: tuple, resolution: tuple):
    blue, green, red = get_pix_bgr(image_path, coordinates[0], coordinates[1])
    img = np.zeros((resolution[1], resolution[0], 3), np.uint8)
    # 创建BGR纯色图
    img[:] = [blue, green, red]
    result_image = os.path.join(output_dir, '{}.jpg'.format(uuid.uuid1().hex))
    cv2.imwrite(result_image, img)
    return result_image
 
 
if __name__ == '__main__':
    print(make_one_color_pic(r'C:\Users\huyi\Desktop', r'C:\Users\huyi\Desktop\2054146.jpg', (300, 300), (1080, 1920)))