Calculate the intensity of all pixel in an immage

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valerio auricchio
valerio auricchio 2020-10-5
编辑： Priysha LNU 2020-10-8
I have an immage produced from a "FLIR" cam that applicate an algoritm for polarization. I want to calculate the polarization vector from this immage using the intensity of the pixel of the immage. How i can calculate the intensity of each pixel in the immage?
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Rik
Rik 2020-10-5
That depends on what you mean by intensity of an area. The average? The maximum? The 95th percentile?
And why do you capitalize every 'the'? It is a bit distracting.
valerio auricchio
valerio auricchio 2020-10-5
Sorry for capitalizing "the" :).
I link you the photo that I'm using, I want to calculate the avrage of intensity in the region.
Can you help me with the code?
I read that with the command "regionprops" it's possible to select the region directly on the immage.

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Priysha LNU
Priysha LNU 2020-10-8
编辑：Priysha LNU 2020-10-8
The 'REGIONPROPS' command from the Image Processing Toolbox can calculate the minimum, maximum, and average intensity of regions. You can use 'regionprops()' function and ask for the mean intensity of all the blobs by setting the 'Pixel Value Measurements' property.
labeledImage = bwlabel(binaryImage);
measurements = regionprops(labeledImage, grayscaleImage, 'MeanIntensity');
For more information on the REGIONPROPS function, type
doc regionprops
at the MATLAB Command Window, or go to this documentation link.
DISCLAIMER: These are my own views and in no way depict those of MathWorks.

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