English 中文(简体)
How to export pixel coordinates of point objects from an image (with imagej?)
原标题:

I am on a project where I am interested in the spacing & distribution of point objects in an microscope image.

So the image consists of darker, circular small dots from a rather complex background. It would be nice to do this with an feature extraction script automatically some day, but for now I am just hand-picking the points... Because I trust my own eyes :)

I looked through a couple different softwares and so far I liked imagej, which has a multi-point select feature. But I couldn t figure out after selecting the points by hand, how to export the coordinates. All I need is the X s and Y s for each point (for about a hundred points for each image).

Any pointers?

Or if you have alternative ideas on how to do this, suggest me another program (matlab?), or even point me to other useful readings, etc...

Thanks immensely!

问题回答

OK. With some help I discovered that I can do this with just CTRL-M in imagej...

Though it doesn t seem to be the same process you re after there is something similar written in ImageJ for analysing Dot Blots

http://image.bio.methods.free.fr/dotblot.html

It has a number of methods for identifying the dots and can also export the results as a CSV. The code itself is available at the bottom of the above page so you should be able to work with it if you re interested in automation.





相关问题
Resources for Image Recognition

I am looking for a recommendation for an introduction to image processing algorithms (face and shape recognition, etc.) and wondered if anyone had an good recommendations, either for books, ...

Good reference book for digital image processing? [closed]

I am learning digital image processing on my own and would like recomendations on good reference books. If you know of books to definately stay away from that would be useful as well. Thanks

Python Tesseract can t recognize this font

I have this image: I want to read it to a string using python, which I didn t think would be that hard. I came upon tesseract, and then a wrapper for python scripts using tesseract. So I started ...

What s the quickest way to parallelize code?

I have an image processing routine that I believe could be made very parallel very quickly. Each pixel needs to have roughly 2k operations done on it in a way that doesn t depend on the operations ...

Computing object statistics from the second central moments

I m currently working on writing a version of the MATLAB RegionProps function for GNU Octave. I have most of it implemented, but I m still struggling with the implementation of a few parts. I had ...

Viola-Jones face detection claims 180k features

I ve been implementing an adaptation of Viola-Jones face detection algorithm. The technique relies upon placing a subframe of 24x24 pixels within an image, and subsequently placing rectangular ...

热门标签