Assignment 2: Porosity Analysis using ImageJ Software

This assignment report details the process of analyzing image porosity using ImageJ software. The student followed a step-by-step procedure, including image opening, cropping, scaling, threshold adjustment, and particle analysis. The analysis focused on determining the percentage area representing porosity for various images, with results presented in a table. The report includes detailed results such as total area, average pore size, circularity, solidity, and Feret parameters. References to relevant resources, including YouTube tutorials and research papers, are also provided to support the methodology and analysis. The report provides a comprehensive understanding of the image analysis techniques used to determine porosity in materials science applications.

Analysis for Porosity 1
ANALYSIS FOR POROSITY
By [Name]
Course
Professor’s Name
Institution
Location of Institution
Date

Analysis for Porosity 2
The analysis for porosity for these images was done using imageJ software.
(Zalooli, 2016) Described the procedure for analysis of images using imageJ which at the same
time has been demonstrated by (Svsufoundry, 2014) as shown below;
1. Opening the image and cropping it to eliminate the unnecessary parts.
2. The images were saved in the format that is readable by imageJ and for this case, we used
.png and tiff.
3. We introduced scaled the image using the scale that was given for each image.
4. The image type was set to be 32bit and the adjustment for the threshold was done to
reasonable level. The colored area in red represent the pores within that region.
5. On analysis we chose the set measurement and selected the area, percentage area and
ferret for analysis. Then we chose particle analysis, which calculates the results
automatically on pressing okay.
The percentage area represents the porosity for the images, which has been highlighted in yellow
as shown in the table below. The other results for the analysis can be found in the folder for all
the images, which was done separately.

Analysis for Porosity 3
Image Count Total Area Average SizePorosity(%) CircularitySolidity Feret Feret X Feret Y Feret AngleMinferet
Image 1 140.0 1295.0 9.250 0.590 9.635 0.855 0.835 4.311 205.207 215.236 115.197
Image 2 168.0 17777.8 105.820 0.249 38.154 0.847 0.826 18.195 2105.522 935.979 114.258
3.PNG 187.0 22500.0 120.321 0.315 38.372 0.855 0.836 18.154 2140.582 897.950 112.577
4.PNG 509.0 71913.6 141.284 1.008 41.065 0.882 0.870 18.989 1552.467 1014.549 118.473
5.PNG 75.0 14598.8 194.650 0.205 44.992 0.907 0.908 20.757 2523.185 448.741 120.359
6-1.PNG 1113.0 100246.9 90.069 1.406 35.395 0.851 0.831 16.844 1827.708 1158.286 106.090
7.PNG 117.0 5732.4 48.995 0.253 24.374 0.853 0.840 11.285 875.294 587.767 111.306
8.PNG 92.0 9228.5 100.310 0.409 30.665 0.868 0.859 13.431 867.188 546.603 111.151
9.PNG 115.0 15586.4 135.534 0.217 40.624 0.846 0.844 19.100 1619.903 834.493 120.792
10.PNG 105.0 9755.9 92.913 0.431 26.888 0.860 0.849 12.040 937.946 538.899 115.136
11.PNG 818.0 23193.4 28.354 1.029 19.985 0.848 0.835 9.591 995.064 513.929 115.079
12.PNG 78.0 13981.5 179.250 0.196 45.858 0.848 0.846 21.529 1495.726 965.100 103.079
13.PNG 96.0 8457.0 88.094 0.376 31.195 0.845 0.847 13.840 1028.678 570.638 89.800
14.PNG 98.0 8154.3 83.207 0.361 29.803 0.835 0.840 13.400 875.287 715.561 107.522
15.PNG 199.0 14209.0 71.402 0.626 29.638 0.819 0.828 13.219 769.362 762.563 105.685
16.PNG 177.0 10537.1 59.532 0.465 27.404 0.816 0.819 12.390 1008.545 744.050 107.157
17.PNG 15.0 449.2 29.948 0.020 19.580 0.894 0.987 9.517 733.125 444.583 134.721
18.PNG 531.0 15703.1 29.573 0.687 20.275 0.849 0.837 9.851 922.252 905.820 120.578
19.PNG 526.0 15459.0 29.390 0.686 20.168 0.851 0.837 9.809 927.757 896.340 120.736
20.PNG 251.0 9785.2 38.985 0.434 23.175 0.839 0.852 11.282 1186.977 625.336 122.673
21.PNG 112.0 5976.6 53.362 0.266 25.578 0.842 0.851 12.001 889.537 767.271 112.014
22.PNG 135.0 7470.7 55.339 0.332 25.432 0.871 0.861 11.957 979.722 579.583 115.490
23.PNG 241.0 8388.7 34.808 0.372 22.143 0.828 0.817 10.590 954.590 635.114 118.770
24.PNG 254.0 9121.1 35.910 0.405 21.877 0.852 0.857 10.510 982.960 590.010 120.651
25.PNG 221.0 8154.3 36.897 0.359 22.747 0.841 0.835 10.882 952.064 606.575 112.146
ave. 1-12 0.526
ave.13-19 0.460
ave. 20-25 0.361

Analysis for Porosity 4
References
Svsufoundry, 2014. Youtube. [Online]
Available at: https://youtu.be/t6DgzfiifZ8
[Accessed 28 August 2018].
Zalooli, A., 2016. ResearchGate. [Online]
Available at:
https://www.researchgate.net/post/How_we_can_determine_average_pore_size_using_Imagej_s
oftware_in_FESEM_micrograph
[Accessed 28 August 2018].