Ihave tried to analyze the images of plant pods using ImageJ software but it does not show the width and length of a pod/pods accurately. Because the pods are curved, it gives the width of a pod upto 5 to 8 cm which should be below 1 cm. Can anyone suggest me exactly how we can measure the width and length of only black portions ?
How can i analyze width and length of multiple plant pods in single image using ImageJ software?
Viewed 44
1 Answers
Please provide a reference scale. Without it, your results will be in pixels not cm or mm!
The rightmost pod results in the following values:
OrthoMedial-Distances (widths)
Mean = 52.65±8.39px;
Median = 55.97px;
MinMax = (10.5, 61.5)px;
Medial-Axis
Length = 1785.0px;
EDIT:
The analysis was done using the ImageJ-plugins "Easy_EdgeTrace.class" for tracing and and "general_TraceDistances.class" for the width and length evaluation. Both can be accessed from here.
Make sure the pods are suitably oriented. The tracing won't work properly for pod #3.
Here is what I get for the rightmost pod: 
Here are the widths: 
OrthoMedial-Distances (widths):
Mean = 0.69±0.11cm;
Median = 0.73cm;
MinMax = (0.13, 0.81)cm;
Medial-Axis:
Length = 23.90cm;
Related