Intensity Values
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Hi. I'm attempting to find the fringe visibility of an interference pattern from a diffraction grating, using MATLAB. I have an image of this pattern, and have used the following code so far in MATLAB:
myimage = imread('IMG_0166.JPG') image = rgb2gray(myimage); imshow(image)
I'm struggling to find a way in which i can go about obtaining the intensity values from this image.
Any help would be appreciated,
Thanks.
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Answers (2)
Walter Roberson
on 13 Mar 2011
Please clarify what you mean by the "intensity values". The grayscale version of the image is already the relative intensity where intensity means luminosity under the presumption of linear response of the sensors. If you are looking for absolute luminosity then you need a calibration.
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