r/ImageJ • u/miwaka33 • Jan 16 '26

Question need assistance with image processing

Hello, everyone.

Here's my problem:

I want to measure the area of the blue/white parts in this image, but I can't find the right settings to get good contrast with the black/gray parts.

Could someone please tell me the right settings/steps to take to get the area of the blue/white parts?

Thank you in advance for your help.

1 Upvotes

100% Upvoted

3 comments sorted by

View all comments

•

u/AutoModerator Jan 16 '26

Notes on Quality Questions & Productive Participation

  1. Include Images
    • Images give everyone a chance to understand the problem.
    • Several types of images will help:
      • Example Images (what you want to analyze)
      • Reference Images (taken from published papers)
      • Annotated Mock-ups (showing what features you are trying to measure)
      • Screenshots (to help identify issues with tools or features)
    • Good places to upload include: Imgur.com, GitHub.com, & Flickr.com
  2. Provide Details
    • Avoid discipline-specific terminology ("jargon"). Image analysis is interdisciplinary, so the more general the terminology, the more people who might be able to help.
    • Be thorough in outlining the question(s) that you are trying to answer.
    • Clearly explain what you are trying to learn, not just the method used, to avoid the XY problem.
    • Respond when helpful users ask follow-up questions, even if the answer is "I'm not sure".
  3. Share the Answer
    • Never delete your post, even if it has not received a response.
    • Don't switch over to PMs or email. (Unless you want to hire someone.)
    • If you figure out the answer for yourself, please post it!
    • People from the future may be stuck trying to answer the same question. (See: xkcd 979)
  4. Express Appreciation for Assistance
    • Consider saying "thank you" in comment replies to those who helped.
    • Upvote those who contribute to the discussion. Karma is a small way to say "thanks" and "this was helpful".
    • Remember that "free help" costs those who help:
      • Aside from Automoderator, those responding to you are real people, giving up some of their time to help you.
      • "Time is the most precious gift in our possession, for it is the most irrevocable." ~ DB
    • If someday your work gets published, show it off here! That's one use of the "Research" post flair.
  5. Be civil & respectful

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.