@@ -7,7 +7,7 @@ Most experiments study a model 2 dimensional (2D) granular system composed of ci
### 1.1 Detection of the particles (discs) from white light imaging
For particles of disc shape, a picture with white light transmitted through particles is usually taken to record their positions.
For particles of disc shape, a picture with white light transmitted through particles is usually taken to record their positions. The general idea to detect particles then is to . The procedure can be summarized as follows:
* From one channel of the white light image, a mapping of the intensities to new values by suppressing low and high intensities is employed to increase the contrast of the image.
