C# Winform基于AForge支持4路USB摄像头拍照录像，运行环境VS2010
2019-12-21 19:50:39
10.8MB
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参考资料已经在代码中注明,在原有代码修复了一些小bug，使用了CvvImage类进行相片显示，可拍照也可加载图片！识别的话与照片清晰度有关....
2019-12-21 19:49:29
2.45MB
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android调用camera时，可以自己写一个activity，赋上相关参数，打开前camera就可以了；
需要申请的permission，在AndroidManifest.xml中添加：
主要功能，打开前camera
private Camera openFrontFacingCameraGingerbread() {
int cameraCount = 0;
Camera cam = null;
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
cameraCount = Camera.getNumberOfCameras();
for (int camIdx = 0; camIdx < cameraCount; camIdx++) {
Camera.getCameraInfo(camIdx, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
try {
cam = Camera.open(camIdx);
mCurrentCamIndex = camIdx;
} catch (RuntimeException e) {
Log.e(TAG, "Camera failed to open: " + e.getLocalizedMessage());
}
}
}
return cam;
}
根据打开时的横竖屏方向来调整preview角度
//根据横竖屏自动调节preview方向，Starting from API level 14, this method can be called when preview is active.
private static void setCameraDisplayOrientation(Activity activity,int cameraId, Camera camera)
{
Camera.CameraInfo info = new Camera.CameraInfo();
Camera.getCameraInfo(cameraId, info);
int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
//degrees the angle that the picture will be rotated clockwise. Valid values are 0, 90, 180, and 270.
//The starting position is 0 (landscape).
int degrees = 0;
switch (rotation)
{
case Surface.ROTATION_0: degrees = 0; break;
case Surface.ROTATION_90: degrees = 90; break;
case Surface.ROTATION_180: degrees = 180; break;
case Surface.R
2019-12-21 19:32:28
628KB
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