// Do any additional setup after loading the view.
}
}
在前面的代码中,我将 UIImageView的输出命名为
imageView
,将按下按钮的动作命名
为
doObjectDetection
。
你需要将图像添加到你的项目中,以便你可以将其加载到 UIImageView 中。在本例中,
我有一个名为
bird.jpg
的文件,在
viewDidLoad()
中加载它的代码如下所示:
imageView.image = UIImage(named: "bird.jpg")
6.2.3
第
3
步:为注释创建子视图
当此应用从 ML Kit 获取检测到的物体时,它会在图像上绘制边界框。在进行推理之前,
让我们确保我们可以在图像上绘制。为此,你需要在图像上绘制一个子视图。这个子视
图将是透明的,并且我们将在其上绘制边界框的矩形。因为它在图像上并且除了矩形之
外都是透明的,所以它看起来就像是在图像上绘制了矩形。
在
ViewController.swift
中将此视图声明为 UIView 类型。使用 Swift,你可以指定如何使
用视图已经加载的先决条件来实例化视图,确保此视图在包含你的图片的 UIImageV ...
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