Indexing cannot yield multiple results

Hello I use size function on image 466*700*3 unit8 .

[xm ym zm]=size(Main);

 but I see this error

Indexing cannot yield multiple results.

Could you help me?

Thanks

Answer 1

[dpb]

Clearly Main must be something other than a 3D array at this time or you've aliased size or somesuch.

What does

whos Main

return? If that doesn't clarify things, then

which size

and/or

clear size

and try again.

Answer 2

[Image Analyst]

In addition to dpb's suggestions, which will probably fix it. You got the names wrong. The first dimension returned by size() is the y dimension (rows), not the x dimension. Thinking that the order x,y is the same as row,column is a very common error. So use one of these calls

[rows, columns, numberOfColorChannels] = size(yourImage);
[ySize, xSize, zSize] = size(yourImage);

but NOT the way you did it.

[dpb]

In addition to dpb's suggestions, ... You got the names wrong.

Good catch, didn't even notice that--dpb

[Guillaume]

Maybe a bit pedantic, but it all depends on your coordinate system. The OP could very well have a coordinate system where x is pointing down and y pointing right.

Probably not.

It's actually a bit of an issue that matlab's documentation (particularly regionprops) doesn't actually specify which coordinate system is in use.