如何在边框中获取图像？

Question

我具有检测视频中人物的功能。我只想在边框内显示图像。我将不胜感激任何帮助。我已经试过了。这不是完整的代码。只是重要部分的片段。

def run(self,image):
    self.personBBs = [] #person bounding boxes
    self.sub_image = None # image inside the bounding box
    for i, c in reversed(list(enumerate(out_classes))):
        predicted_class = self.class_names[c]
        if "person" != predicted_class:
            continue
        score = out_scores[i]
        if score > person_threshold:
            self.personFlag = True
            box = out_boxes[i]
            bounding_boxes_list = [int(v) for v in box]
            x,y,w,h = bounding_boxes_list
            #condition for getting the image inside the bounding box
            self.sub_image  = image[y:y+h, x:x+w]
            self.personBBs.append(bounding_boxes_list)

    return self.sub_image,self.personBBsenter code here

当我检查帧中的图像时，它不是在显示人物而是背景。