I know this is an old post. I have 8-bit gray scale LUT root scanned images that I'm trying to clean out of small "dots" "unshaped particles" (sawdust and soil particles). I just installed the latest version of Image J and download the morphology plug-ins and macros and unzipped them inside the plug-in folder as instructed on your web page. However, I have not had any success getting the macro to work. After I upload the image I run the macro "KeppparticlesInRange" and is giving me a message "Unrecognized command: "Particles8".   I think where I'm confused is on the following statement/procedure "Partilces8 and Particles4 can delete particles less and larger than certain size in pixels". Do I'm missing a a step or another macro before trying to run the macro? Will this procedure erase the "particles" from the image after? Would it be possible to save the image with the erased particles? I need to run the cleaned image on other software to measure root lengths. I included an example of one of my images, all those dots are the particles I want to delete. I've been doing this manually using gimp but is taking a long time. I hope Image J can do that for me.

Hello

Kindly visit these links , will help you

http://imagej.1557.x6.nabble.com/Removing-Parts-of-the-Image-Below-a-Threshold-Size-td3689834.html

https://imagej.nih.gov/ij/plugins/particle-remover.html

Good Luck

Hi there,

I think the fastest way to do this, in your case, is using the Flood Fill Tool (the small paint cube) in white and clicking on each particle. After this, if any super small particle remains you can filter by size using Analyse Particles.

Selection plus Ctrl+F could also work for you as mentioned, or even the brush tool with a large diameter (in white).

Hope this helps,

Cheers

Hi everybody.

I know this is an old post, but I really need help with my image analysis process. I have already created two different Analyze Particles image results (with a previous thresholding process for each one) from the same primary image, with their respective area values. But now I need to combine them again, EXCLUING this time the particulars which do not transpose between them. Obtaining just particles with the same characteristics at the same time.

Tank you very much.

Why do you want to remove some particles from the image? According to the scientific view, it is not ethical because if someone wants to follow your work they will not get like your presented one so they will get confused. My suggestion is that do not modify the real image. Hope you understand the point.