What Is the third value when reading an image

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Harel Harel Shattenstein
Harel Harel Shattenstein 2018년 11월 13일
답변: Image Analyst 2018년 11월 13일
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 2018년 11월 13일
Image Analyst
Image Analyst 2018년 11월 13일
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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