我有一个项目图像处理来测量标尺的精度。
因此，我想尽可能快地对 4k 图像进行图像处理。
但我无法使用 OpenCV 获得 4k 图像。
我在“activity_main.xml”中创建了“JavaCameraView”并连接了 mOpenCvCameraView 和 JavaCameraView
mOpenCvCameraView = (CameraBridgeViewBase)findViewById(R.id.activity_surface_view);
即使我更改了有关相机的一些设置，我也只能获得 1920 x 1080 的分辨率。
当然，My Android Phone 支持的分辨率更多。
D/CameraBridge: trying size: 4000x3000
D/CameraBridge: trying size: 3264x2448
D/CameraBridge: trying size: 3280x2464
D/CameraBridge: trying size: 3840x2160
D/CameraBridge: trying size: 3264x1836
D/CameraBridge: trying size: 2576x1932
D/CameraBridge: trying size: 1920x1080
D/CameraBridge: trying size: 1280x720
D/CameraBridge: trying size: 3264x1468
D/CameraBridge: trying size: 2400x1080
D/CameraBridge: trying size: 1440x1080
D/CameraBridge: trying size: 1280x960
D/CameraBridge: trying size: 1088x1088
D/CameraBridge: trying size: 960x720
D/CameraBridge: trying size: 720x480
D/CameraBridge: trying size: 640x480
D/CameraBridge: trying size: 352x288
D/CameraBridge: trying size: 320x240
D/CameraBridge: trying size: 176x144
I/JavaCameraView: Selected preview size to 1920x1080
所以，我重新设计，用 CameraX 拍摄图像，用 OpenCV 进行图像处理。
它可以工作，但是 CameraX（takepicture api）需要太多时间（500~600msec）才能获取图像。
也许 CvCameraViewListener 是快速获取图像的唯一方法。（如果需要，我不需要预览窗口。输出只能是文本）
如果有人有任何意见可以解决我的问题，请告诉我。
谢谢你。