我是 OpenCV 的新手——在 Android 上使用 OpenCV310。
当我对存在的文件调用Imgcodecs.imread时,我总是得到一个空的 Mat。有人可以帮我吗?
代码是:
File root = Environment.getExternalStorageDirectory();
File file = new File(root, "1.jpg");
Log.e(getString(R.string.app_name), "File exists: " + file.exists());
Log.e(getString(R.string.app_name), "Trying to read: " + file.getAbsolutePath());
Mat BGRMat = Imgcodecs.imread(file.getAbsolutePath(),Imgcodecs.CV_LOAD_IMAGE_COLOR);
if(BGRMat.empty())
{
Log.e(getString(R.string.app_name), "Failed, Empty! Details: " + BGRMat);
}
else
{
Log.e(getString(R.string.app_name), "Success! Details: " + BGRMat);
}
我得到的日志是:
07-05 20:53:26.941 28555-28555/com.sunshine.spotdetector E/SpotDetector:文件存在:真
07-05 20:53:26.941 28555-28555/com.sunshine.spotdetector E/SpotDetector:试图读取: /storage/emulated/0/1.jpg
07-05 20:53:26.941 28555-28555/com.sunshine.spotdetector E/SpotDetector:失败,空!详细信息:Mat [ 0*0*CV_8UC1, isCont=false, isSubmat=false, nativeObj=0x7f97b2a660, dataAddr=0x0 ]
提前致谢!