69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
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from PIL import Image, ImageOps
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import cv2
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import numpy as np
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def add_yellow_border(image_path, output_path, border_size=2):
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"""
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给指定的图像添加黄色外边框并保存。
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参数:
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image_path (str): 原始图像的路径。
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output_path (str): 带边框的图像保存路径。
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border_size (int): 边框的像素宽度，默认为2。
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"""
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# 打开图像
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img = Image.open(image_path)
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# 计算边框颜色和大小
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# 灰色
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# border_color = (192, 192, 192)
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border_color = (255, 255, 0)
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border = (border_size, border_size, border_size, border_size) # (左, 上, 右, 下)
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# 添加边框
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img_with_border = ImageOps.expand(img, border=border, fill=border_color)
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# 保存新图像
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img_with_border.save(output_path)
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print(f"Image saved with a yellow border to {output_path}")
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def find_qr_code_border_and_save(image_path):
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# 读取图像
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img = cv2.imread(image_path)
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gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
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# 边缘检测
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edges = cv2.Canny(gray, 50, 150, apertureSize=3)
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# 霍夫变换检测直线
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lines = cv2.HoughLinesP(edges, 1, np.pi / 180, threshold=100, minLineLength=100, maxLineGap=10)
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print(lines)
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# 初始化最小和最大的x和y值
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min_x, max_x = img.shape[1], 0
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min_y, max_y = img.shape[0], 0
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if lines is not None:
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# 更新x和y的最小和最大值来找到边界框
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for line in lines:
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x1, y1, x2, y2 = line[0]
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min_x = min(min_x, x1, x2)
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max_x = max(max_x, x1, x2)
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min_y = min(min_y, y1, y2)
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max_y = max(max_y, y1, y2)
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# 截取二维码区域
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qr_code_region = img[min_y:max_y, min_x:max_x]
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# 保存截取的图片
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cv2.imwrite('qr_code_detected.png', qr_code_region)
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print("二维码区域已保存为 'qr_code_detected.png'")
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else:
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print("未检测到任何直线")
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# 示例用法
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# image_path = '20240506202950.png' # 替换为你的图像路径 jkkkkkkkkkk
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# output_path = '20240506202950_border.png' # 替换为保存新图像的路径
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# add_yellow_border(image_path, output_path,5)
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find_qr_code_border_and_save('IMG_3565.png')
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