What Is the third value when reading an image

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Harel Harel Shattenstein
Harel Harel Shattenstein le 13 Nov 2018
Réponse apportée : Image Analyst le 13 Nov 2018
When using imread() we get a matrix of the size [r,c,x] what does x stand for?

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madhan ravi
madhan ravi le 13 Nov 2018
Image Analyst
Image Analyst le 13 Nov 2018
When used with an image, the third output of the size() function represents how many color channels there are: 1 for a gray scale image and 3 for an RGB image. There are some watchouts if you only accept two size() outputs and you actually really have an RGB image and not a gray scale image. See the link below.
See Steve's blog discussion about this: Too much information about the size function.

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