image color measurement

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image color measurement

repsaj
For a project I have to measure the color of strawberries on a picture. There
are a load of pictures whom I have to analyse. I'm searching for a macro or
plugin which can automatically find the strawberries on the picture. And
than analyse the color (only the red part of the strawberry!).

And also I am searching for an automatically measure plugin for the length
and width of the strawberry but also only the red part. And if it is
possible if it can also measure the green part of the strawberry.

See image for example of images I work with.

<http://imagej.1557.x6.nabble.com/file/t382049/2031_00001.jpg>  

I hope you can help me. Thanks in advance!



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Re: image color measurement

LIM Soon Yew John (IMB)
Hi,

The Colour Deconvolution plugin can be used to nicely separate out the "Red" portion for segmentation and bounding rectangle under "Set Measurements..." can be used to measure width & height.

Regards,
John

-----Original Message-----
From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of repsaj
Sent: Friday, 13 July 2018 4:45 PM
To: [hidden email]
Subject: image color measurement

For a project I have to measure the color of strawberries on a picture. There are a load of pictures whom I have to analyse. I'm searching for a macro or plugin which can automatically find the strawberries on the picture. And than analyse the color (only the red part of the strawberry!).

And also I am searching for an automatically measure plugin for the length and width of the strawberry but also only the red part. And if it is possible if it can also measure the green part of the strawberry.

See image for example of images I work with.

<http://imagej.1557.x6.nabble.com/file/t382049/2031_00001.jpg>

I hope you can help me. Thanks in advance!



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Re: image color measurement

Gabriel Landini
On Friday, 13 July 2018 10:26:09 BST [hidden email] wrote:
> The Colour Deconvolution plugin can be used to nicely separate out the "Red"
> portion for segmentation and bounding rectangle under "Set Measurements..."
> can be used to measure width & height.

By design, colour deconvolution is not really suitable for reflectance
(additive colour) images, only subtractive mixing images.
You better use a different way of getting the colour contribution of each
object.

Cheers

Gabriel

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