software for counting colonies

Andy Hunt andy at
Tue Dec 17 15:06:59 EST 1996

rsucgang at (Richard S Sucgang) wrote:

>NIH Image should have no problem with this.
>Just convert to grayscale, and then use threshold to convert
>to a 1bit image, and use the count particles command.
>Karthi Ramachandran (karthi at wrote:
>: Hi everyone,
>: We are doing some genetics experiments that requirs counting colonies on 100s 
>: of plates each time. We have the facility for capturing images of these plates 
>: and storing them digitally. I am wondering if there are any software 
>: commercial/ shareware/ freeware that will count the colonies from these 
>: images? 
>: Any pointers will be greatly appreciated
>: Thanx very much
>: Karthi. R
>: ---------------------------------------------------------------------------
>: Karthikeyan Ramachandran Ph.D
>: Research Fellow, Rm. No. SA136
>: School of Biological and Chemical Sciences
>: Faculty of Science and Technology		Phone (Off) (052) 271 406
>: Deakin University			Phone (Res) (052) 419 806
>: Geelong, Victoria			Fax (052) 272 022
>: Australia 3217				e-mail karthi at
>: Home page

If you're on the PC platform, PC_Image from Foster Findlay Associates will do the job for you l, it's not free though.
You can check them out and download a demo from


Andy Hunt

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