Hi all, I am very new to image analysis with ImageJ and currently I am trying to do a grain size analysis on fault rock types from within a rock avalanche. I have acquired images from an SEM at various magnifications (x150, x400, x800, x1600) which I have montaged together in photoshop.
Currently I am struggling with the following, if any advice were to imparted I would be truly grateful.
Obtaining constant contrast across the images, currently the SEM has left a remnant change in contrast across the images which affects how the well the montage can be thresholded. Is there a way to amend this in ImageJ?
Removing particles of a certain size from the images? I would like to remove pixels of low resolution from each magnification to allow for better thresholding but I am unsure how to execute this in ImageJ.
I have attached a link for the x400 magnification montage, if there are any other suggestions to make sure for excellent analyses I am all ears.
Thank you for your time,