CODEWITHSUNDEEP
matlab
Simplicity
Simplicity

Reputation: 48946

Matlab - using imquantize()

I found that there is a method called imquantize in order to make a quantization of the input image. I'm trying to make a quantization using 4-bits. I did the following:

>> quan = imquantize(im,16);

But, I got the following error:

??? Undefined function or method 'imquantize' for input arguments of type 'unit8'

How can I go around this?

Thanks.

Upvotes: 1

Views: 2950

Answers (2)

nneonneo
nneonneo

Reputation: 179552

imquantize is new to the 2012b release of the Image Processing Toolbox. Therefore, if you don't have 2012b (released last month), you won't have imquantize.

In any case, your usage of imquantize would be incorrect. imquantize takes, as a second argument, a vector of levels to be used as the threshold. Those levels could, for example, be obtained through multithresh (which is also new to IPT 2012b).

Upvotes: 2

zenpoy
zenpoy

Reputation: 20126

imquantize is a new function introduced in Image Processing Toolbox R2012b. You can check which image processing toolbox is installed on your matlab (if any) by invoking this command:

ver

Upvotes: 2

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