This tutorial is one of many instructional videos
presented by Olympus Industrial Equipment.
This tutorial will provide you with detailed instructions
on performing grains analysis
within the Olympus Stream Image-Analysis software.
Stream offers the ability to perform grains analysis
in compliance with ASTM E112
as well as various international standards.
To get started, access the "Materials Solutions" tool window
from the menu View, Tool Windows, Materials Solutions.
Within the "Materials Solution" tool window,
click the "Grains Intercept" button.
The Wizard intuitively walks the user through every step of the analysis.
Detailed analysis instructions are conveniently provided
at the top of the Materials Solutions tool window during each step.
Highlight the images you wish to analyze in the "Gallery" tool window.
Multiple images can be selected by holding the "Control" or "Shift" keys.
Alternatively, live images can be analyzed,
as can batch images from a folder or integrated database.
After selecting the images you wish to analyze, press the "Next" button.
Enter any data relevant to the sample or image.
This data will be automatically integrated into the report
at the end of the analysis,
as well as recorded in the image meta-data.
Once you have finished, click the "Next" button.
A pattern is now superimposed above the image,
as well as red circles, or intercepts.
These intercepts are displayed whenever the overlaid pattern
intercepts with a grain boundary, hence the name "intercept" method.
The operator is free to choose from 6 unique patterns.
Select the grain boundary type that best corresponds with your image.
Should too many or too few intercepts be detected,
this can easily be adjusted.
Move the grain boundary width slider to the right
if sample etching is poor,
or to the left if the grain boundaries are well defined.
Some images may contain streaks as a result of poor polishing.
This can be compensated for with the "Noise Reduction" slider.
Moving this slider to the right will compensate
for streaks more aggressively,
whereas moving this slider to the left will have the opposite effect.
Once you are satisfied that the number of intercepts
have been accurately represented,
click the "Next" button.
Preliminary results of the grains analysis are now displayed.
The "Image Results" window displays the results of the current image,
whereas the "Sample Results" window displays the cumulative
results of all images analyzed for that particular sample.
By clicking the corresponding button,
operators can now manually add or delete intercepts.
Should the results be completely unsatisfactory
due to artifacts or other interference,
the image results can be rejected,
which will not affect the results of other images within a sample.
Once you are satisfied, click the "Next" button.
The grains analysis is now complete.
The operator can choose to create a workbook ,
containing the analysis results
as well as a report directly in Microsoft Word,
by checking the corresponding box.
Before the reports are generated, analysis settings can be saved
where they can be recalled at the beginning of the next analysis.
This will save time on future runs.
Click the "Finish" button to complete the analysis.
A workbook is now generated, displaying the results.
If the option is chosen, a report will be automatically
generated in MS Word, based on a pre-defined template.
The report contains both the analysis results and images.
Right-click anywhere on the image and select "Properties."
Grains analysis results are retained along with the image properties.
This data is embedded into the image,
where it can be displayed for future reference.
In this instructional video, we have covered Grains Analysis
within the Olympus Stream image-analysis software.
We hope this video has been beneficial,
and we invite you to contact us directly with any questions.