如何在运行时更改JavaCameraView的maxFrameSize
我有一个带有OpenCV的Android应用程序,它应该能够在运行时更改JavaCameraView的帧大小。 因为在交付的帧上进行了大量处理,我在应用程序开始时将帧的分辨率设置为320 x 280。我是这样做的:如何在运行时更改JavaCameraView的maxFrameSize,java,android,opencv,Java,Android,Opencv,我有一个带有OpenCV的Android应用程序,它应该能够在运行时更改JavaCameraView的帧大小。 因为在交付的帧上进行了大量处理,我在应用程序开始时将帧的分辨率设置为320 x 280。我是这样做的: protected void onCreate(Bundle savedInstanceState) { cameraView = (JavaCameraView) findViewById(R.id.cam_view); cameraView.setMaxFrame
protected void onCreate(Bundle savedInstanceState) {
cameraView = (JavaCameraView) findViewById(R.id.cam_view);
cameraView.setMaxFrameSize(320, 280);
cameraView.setCvCameraViewListener(this);
我创建了一个RadioButton组,可以在其中选择帧的分辨率。这是我的密码
resolutionChange = new Dialog(this);
resolutionChange.requestWindowFeature(Window.FEATURE_NO_TITLE);
resolutionChange.setContentView(com.finarx.opencv.camera.R.layout.resdialog);
RadioGroup resChange = (RadioGroup) resolutionChange.findViewById(com.finarx.opencv.camera.R.id.resChange);
resChange.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group,
int checkedId) {
if (checkedId == com.finarx.opencv.camera.R.id.lowest) {
cameraView.setMaxFrameSize(320, 280);
resolutionChange.dismiss();
} else if (checkedId == com.finarx.opencv.camera.R.id.low) {
cameraView.setMaxFrameSize(480, 320);
resolutionChange.dismiss();
} else if (checkedId == com.finarx.opencv.camera.R.id.vga) {
cameraView.setMaxFrameSize(640, 480);
resolutionChange.dismiss();
} else if (checkedId == com.finarx.opencv.camera.R.id.higher) {
cameraView.setMaxFrameSize(800, 600);
resolutionChange.dismiss();
} else if (checkedId == com.finarx.opencv.camera.R.id.highest) {
cameraView.setMaxFrameSize(1280, 720);
resolutionChange.dismiss();
}
}
});
事实上,当我选择另一个分辨率时,帧的分辨率不会发生任何变化。当然,我也尝试重新初始化cameraView对象。有什么我错过的吗?嗯,最后我自己发现了。事实上这很容易,但有些事我没有想到。我只需要重新启动我的cameraView对象。这是我的密码:
@Override
public void onCheckedChanged(RadioGroup group,
int checkedId) {
if (checkedId == com.finarx.opencv.camera.R.id.lowest) {
cameraView.setMaxFrameSize(320, 280);
cameraView.disableView();
cameraView.enableView();
resolutionChange.dismiss();
} else if (checkedId == com.finarx.opencv.camera.R.id.low) {
cameraView.setMaxFrameSize(480, 320);
cameraView.disableView();
cameraView.enableView();
resolutionChange.dismiss();
} else if (checkedId == com.finarx.opencv.camera.R.id.vga) {
cameraView.setMaxFrameSize(640, 480);
cameraView.disableView();
cameraView.enableView();
resolutionChange.dismiss();
} else if (checkedId == com.finarx.opencv.camera.R.id.higher) {
cameraView.setMaxFrameSize(800, 600);
cameraView.disableView();
cameraView.enableView();
resolutionChange.dismiss();
} else if (checkedId == com.finarx.opencv.camera.R.id.highest) {
cameraView.setMaxFrameSize(1280, 720);
cameraView.disableView();
cameraView.enableView();
resolutionChange.dismiss();
}
}