CameraBridgeViewBase.java
protected void deliverAndDrawFrame(CvCameraViewFrame frame) {
if (mScale != 0) {
canvas.drawBitmap(mCacheBitmap, new Rect(0,0,mCacheBitmap.getWidth(), mCacheBitmap.getHeight()),
new Rect((int)((canvas.getWidth() - mScale*mCacheBitmap.getWidth()) / 2),
(int)((canvas.getHeight() - mScale*mCacheBitmap.getHeight()) / 2),
(int)((canvas.getWidth() - mScale*mCacheBitmap.getWidth()) / 2 + mScale*mCacheBitmap.getWidth()),
(int)((canvas.getHeight() - mScale*mCacheBitmap.getHeight()) / 2 + mScale*mCacheBitmap.getHeight())), null);
} else {
canvas.drawBitmap(mCacheBitmap, new Rect(0,0,mCacheBitmap.getWidth(), mCacheBitmap.getHeight()),
new Rect((canvas.getWidth() - mCacheBitmap.getWidth()) / 2,
(canvas.getHeight() - mCacheBitmap.getHeight()) / 2,
(canvas.getWidth() - mCacheBitmap.getWidth()) / 2 + mCacheBitmap.getWidth(),
(canvas.getHeight() - mCacheBitmap.getHeight()) / 2 + mCacheBitmap.getHeight()), null);
}
这样就能全屏了。
canvas.drawBitmap(mCacheBitmap, new Rect(0,0,mCacheBitmap.getWidth(), mCacheBitmap.getHeight()),new Rect(0,0,canvas.getWidth(),canvas.getHeight()), new Paint());
/*
旋转:
CameraFaceDetectionView.java
@Override
public Mat onCameraFrame(CvCameraViewFrame inputFrame) {
// 子线程(非UI线程)
mRgba = inputFrame.rgba();
mGray = inputFrame.gray();
Core.transpose(mRgba,mRgbaT); //转置函数,可以水平的图像变为垂直
Imgproc.resize(mRgbaT,mRgba, mRgba.size(), 0.0D, 0.0D, 0); //将转置后的图像缩放为mRgbaF的大小
Core.flip(mRgba, mRgba,0); //根据x,y轴翻转,0-x 1-y
//
Core.transpose(mGray,mRgbaT); //转置函数,可以水平的图像变为垂直
Imgproc.resize(mRgbaT,mGray, mGray.size(), 0.0D, 0.0D, 0); //将转置后的图像缩放为mRgbaF的大小
Core.flip(mGray, mGray,0); //根据x,y轴翻转,0-x 1-y