help with colour identification

Hi, I am looking for some help please. I need to automatically identify the colour brown in an image and also in a video. I have successfully identified brown using 'Colour segmentation by Delta E colour difference' but I need to write a code which automatically identifies the colour with no imput. The same with a video.

I understand that 'brown' is not just one colour therefore I am guessing a colour scale will be needed.

Thank you

Answer 1

[Image Analyst]

Use the Color Thresholder app on the Apps tab of the tool ribbon.

Or just skip the part where I let you hand draw the region and just hard code what the value for the reference brown color is. You can hand draw it one time and then figure out what the mean L, A, and B are, then comment out the hand-drawing part and hard-code in those values.

Attach your image if you need more help.

[Image Analyst]

Yes. You could get all the lab values, for example by using imfreehand() on the LAB image, then use pdist2() (stats toolbox) to find out if any of them are within some distance of any of those brown points.

[Image Analyst]

You need to put the filename in single quotes when you pass it to imread().

[Image Analyst]

Note: original question was (in case she deletes like she did with her comments):

Hi, I am looking for some help please. I need to automatically identify the colour brown in an image and also in a video. I have successfully identified brown using 'Colour segmentation by Delta E colour difference' but I need to write a code which automatically identifies the colour with no imput. The same with a video.

I understand that 'brown' is not just one colour therefore I am guessing a colour scale will be needed.

Thank you