in an image of size 256 by 256,what is the command to retrieve the value of the pixel (3,4)

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Sapam Jaya
Sapam Jaya el 10 de Sept. de 2013
is there any command available to get the pixel value of (3,4) from an image of size 256 by 256 ,so that i need not look from the variable editor window

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Jos (10584)
Jos (10584) el 10 de Sept. de 2013
PixelValue = ImageArray(3,4)
or if your image is actually having the size 256x256x3
PixelValueRGB = ImageArray(3,4,:)
which will give you the RGB components
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Image Analyst
Image Analyst el 10 de Sept. de 2013
That's how I do it, though there is also the impixel() function.
Sapam Jaya
Sapam Jaya el 10 de Sept. de 2013
i have taken the cameraman.tif image .when i give the above command error is showing as "??? Undefined function or method 'ImageArray' for input arguments of type 'double'."

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