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Grain Analysis |
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Step 1: Prepare Your Image
Step 2: Select Grain Analysis Function
Step 3: Set The Threshold
Step 4: Search and Count Grains
Step 5: Report Grain Analysis Results
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Step 4: Search and Count Grains
Count Button: After a proper threshold level is defined, the
"Count" button is selected, and the grains will be counted. All counted objects are defined and highlighted.
Segment Option: The method for selecting segments may
be modified. This is done by clicking the “Option” button in
the search group. The "segment option" dialog then
appears.
Highlight: An object can be highlighted in the following three different styles:
Separated by: Particles can be separated by one of two methods:
• 4-Connected: only objects that share a corner pixel will be counted separately.
• 8-Connected: objects that are connected in any way will be counted as one.
Boundary (in pixel): Adjusts the boundary of the image to determine the inclusion of partial objects.
Smooth: Provides three different filtering kernels for pre-processing the image.
Sort By: Labels of the objects can be sorted in area,
perimeter, length, or width. The number is ordered from
large to small. The default is a searching order.
Sorting by area. The object will be labeled from largest area
to smallest area.
After finishing all changes, click the Apply button. The new
segment option will affect counted objects.
Show Results: After object counting, Results can be shown by checking this box:
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If you select any object in the image, the single object information in above dialog box will be updated.
Settings
Minimum Grain Size |
If a grain size is smaller than this grain, it won’t be counted. |
Minimum Peak Distance |
A peak of grain is its local maximum. So peak distance is defined as a distance between adjacent grains local maximum. |
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Equalization |
If this box is checked, an equalization
method will be applied to
the image prior to counting. |
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Segment Edit: After counting objects, user is able to edit objects in the image.
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Delete |
Selected object will be deleted |
Undo |
Reverses the last step activated in the segments window |
Merge |
When user holds the “Ctrl” key down while clicking on the
grain, multiple grains are selected. If they are all adjacent,
by clicking this button, they will all merge into a single
grain. |
Reset |
Restore image to the default |
Fit To
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Circle and rectangle fit is applied to the grains. The radius,
length, and width will be calculated based on the fitting. |
Measurement: After counting objects, a few parameters will be measured.
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Area |
All pixels inside of boundary of object |
Perimeters |
All pixels on the boundary |
Height |
Average height of all pixels inside the boundary |
Volume |
Height x Area (Height is from threshold level to the top) |
Radius
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Radius from the circle fit |
| Length / Width |
From the rectangle fit |
| Aspect Ratio |
Length / Width |
Measurement Option: With this option a user is able to choose his own parameters that are displayed in the Report
Dialog Box. When an item is selected on the left side, an illustration is presented on the right side.
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