边界框提取

Question

我在使用我发现的用于生成位于 .xml 文件中的 xmin、xmax、ymin、ymax 的函数时遇到了一些问题。我不确定为什么它不起作用，我觉得这是一个我没有考虑的简单错误。

def extract_boxes(self, filename):
        
        # load and parse the file
        tree = ElementTree.parse(filename)
        # get the root of the document
        root = tree.getroot()
        # extract each bounding box
        boxes = list()
        for box in root.findall('.//bndbox'):
            xmin = int(box.find('xmin').text)
            ymin = int(box.find('ymin').text)
            xmax = int(box.find('xmax').text)
            ymax = int(box.find('ymax').text)
            coors = [xmin, ymin, xmax, ymax]
            boxes.append(coors)
        
        # extract image dimensions
        width = int(root.find('.//size/width').text)
        height = int(root.find('.//size/height').text)
        return boxes, width, height


bbs = extract_boxes(r'C:\Users\name\Desktop\kangaroo-master\annots[=10=]001.xml')

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-18-b6a299d4377e> in <module>
     23 
     24 
---> 25 bbs = extract_boxes(r'C:\Users\name\Desktop\kangaroo-master\annots[=11=]001.xml')
     26 
     27 

TypeError: extract_boxes() missing 1 required positional argument: 'filename'

Answer 1

我发现了错误。我没有导入 Element Tree 并且需要删除 self，因为我最初从 class 中提取代码，但我不再在 class 中使用它。

import xml.etree.ElementTree as ET

def extract_boxes(filename):        
    # load and parse the file
    tree = ET.parse(filename)
    # get the root of the document
    root = tree.getroot()
    # extract each bounding box
    boxes = list()
    for box in root.findall('.//bndbox'):
        xmin = int(box.find('xmin').text)
        ymin = int(box.find('ymin').text)
        xmax = int(box.find('xmax').text)
        ymax = int(box.find('ymax').text)
        coors = [xmin, ymin, xmax, ymax]
        boxes.append(coors)
        
    # extract image dimensions
    width = int(root.find('.//size/width').text)
    height = int(root.find('.//size/height').text)
    return boxes, width, height


bbs = extract_boxes(r'C:\Users\zlesl\Desktop\kangaroo-master\annots[=10=]001.xml')```

边界框提取

Bounding box extraction

python

bounding-box