I have a lot of river sediment samples that were taken by PONAR that I would like to analyze for sediment size with an imaging software like ImageJ or Stream. Has this been done before? Does a published paper exist with a similar methodology?
I know of a few papers where pictures were taken of the river bottom and analyzed in ImageJ. This would be similar except we would be looking at the fine sediments brought up by the PONAR under a microscope and assessing that image with ImageJ.
before analyzing the particle size distribution of the sediment make sure u oven dry all the sample. then after try to break the lumps which are form due to presence of clay and silt . distribute the sample into three to four part and spread it on paper. set up the camera exactly above the sample and click the photos. covert all the image into binary (as we are only concern with the size) , For the determination of the sediment size, some known distance in the image like the width of the paper is marked by straight line and scale is set in ‘Image J’ Software, by doing so we can easily find out unknown measurements. the first task is to set the scale which can be done using inbuild tool called “Setscale” ( Step 1: Analyze > Setscale). Once the scale is set, secondary task is to measure the linear dimensions in the image using inbuild tool called “Measure” (Step 2: Analyze > Measure)
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