private void BrowseBtn2_Click(object sender, EventArgs e)
{
videoController.CleanFolder(2);
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
string filename = openFileDialog.FileName;
file2 = filename;
VideoTextPath2.Text = filename;
videoController.OpenVideo(filename, 2);
imgArr2 = videoController.Frames2();
img2 = videoController.ChosenFrame2();
pictureBox2.Image = img2;
}
}