This folder contains several sub-folders containing the following data:

1_Real: 
Contains grain data collected in the Cinca and Ésera rivers.
	Type: Indicate the type of data (here "Real")
	Sample: Sample ID related to the denomination in the paper Part 1.
	Condition: Indicate the condition of the photo (C1, C2 or C3, see the paper, here as it's real grain, we mark them as "ControlData")
	ID: Id of each grain
	Out: indicating if the grain wat totaly inside the frame (0) or in contact with the eages of the frame (1). 
	Painted: indicate the estimated position of the grain at the surface of the bed (see paper for more details)
	Weight_g: weight in grams
	Aaxis_mm: Longest axis measured using the Pebble-Box in mm
	Baxis_mm: Intermediate axis measured using the Pebble-Box in mm
	Caxis_mm: Shortest axis measured using the Pebble-Box in mm
	
2_manual:
Contains grain data manually digitalized  on Photo in condition C1:
	Type: Indicate the type of data (here "Manual")
	Sample: Sample ID related to the denomination in the paper Part 1.
	Condition: Indicate the condition of the photo (C1, C2 or C3, see the paper, here as it's manual grain, we mark them as "ControlData")
	ID: Id of each grain
	Aaxis_mm: Estimated longest axis measured over manual polygones in mm,
	Baxis_mm: Estimated Intermediate axis measured over manual polygones in mm
	Orientation_deg: Estimated orientation of the manual polygones in degree rapported to the north of the photos
	Perimeter_mm: Perimeter of the manual polygones in mm
	Area_mm2: Area of the manual polygones in mm²
	
3_Automated:
Contains grain data automatically identified with PhotoMOB toolbox in condition C1, C2 and C3:
	Type: Indicate the type of data (here "Automated")
	Sample: Sample ID related to the denomination in the paper Part 1.
	Condition: Indicate the condition of the photo (C1, C2 or C3)
	ID: Id of each grain
	Aaxis_mm: Estimated longest axis measured over automated polygones in mm,
	Baxis_mm: Estimated Intermediate axis measured over automated polygones in mm
	Orientation_deg: Estimated orientation of the automated polygones in degree rapported to the north of the photos
	Perimeter_mm: Perimeter of the manual polygones in mm
	Area_mm2: Area of the manual polygones in mm²,
	SD: Relative threshold grey level used during image binarisation step
	ThresholdValue: Threshold grey level velue used during image binarisation step
	
4_Supervised:
Contains grain data automatically identified with PhotoMOB toolbox used in the supervised way in condition C1, C2 and C3:
	Type: Indicate the type of data (here "Supervised")
	Sample: Sample ID related to the denomination in the paper Part 1.
	Condition: Indicate the condition of the photo (C1, C2 or C3)
	ID: Id of each grain
	Aaxis_mm: Estimated longest axis measured over automated polygones in mm,
	Baxis_mm: Estimated Intermediate axis measured over automated polygones in mm
	Orientation_deg: Estimated orientation of the automated polygones in degree rapported to the north of the photos
	Perimeter_mm: Perimeter of the manual polygones in mm
	Area_mm2: Area of the manual polygones in mm²,
	SD: Relative threshold grey level used during image binarisation step
	ThresholdValue: Threshold grey level velue used during image binarisation step
	
5_Basegrain:
Contains grain data automatically identified using Basegrain (Detert, M., & Weitbrecht, V. (2013)) condition C1, C2 and C3:
	Type: Indicate the type of data (here "Basegrain")
	Sample: Sample ID related to the denomination in the paper Part 1.
	Condition: Indicate the condition of the photo (C1, C2 or C3)
	ID: Id of each grain
	Aaxis_mm: Estimated longest axis measured over automated grain in mm,
	Baxis_mm: Estimated Intermediate axis measured over automated grain in mm
	Orientation_deg: Estimated orientation of the automated grain in degree rapported to the north of the photos
	a_px: Estimated longest axis measured over automated grain in pixel,
	b_px: Estimated Intermediate axis measured over automated grain in pixel
	area_px: Area of the automated grain in mm²,
	
6_Sedimetrics:
Contains grain data automatically identified using Basegrain (Detert, M., & Weitbrecht, V. (2013)) condition C1, C2 and C3:
	Type: Indicate the type of data (here "Sedimetrics")
	Sample: Sample ID related to the denomination in the paper Part 1.
	Condition: Indicate the condition of the photo (C1, C2 or C3)
	ID: Id of each grain
	Aaxis_mm: Estimated longest axis measured over automated grain in mm,
	Baxis_mm: Estimated Intermediate axis measured over automated grain in mm
	Orientation_deg: Estimated orientation of the automated grain in degree rapported to the north of the photos
	Area_mm2: Area of the automated grain in mm²