OpenCV running kmeans algorithm on an image

Question

I am trying to run kmeans on a 3 channel color image, but every time I try to run the function it seems to crash with the following error:

OpenCV Error: Assertio         


        

Answer 1

The error says all: Assertion failed (data.dims <= 2 && type == CV_32F && K > 0)

These are very simple rules to understand, the function will work only if:

• mImage.depth() is CV_32F

• if mImage.dims is <= 2

• and if K > 0. In this case, you define K as 6.

From what you stated on the question, it seems that:

IplImage* iplImage = cvLoadImage("C:/TestImages/rainbox_box.jpg");` 

is loading the image as IPL_DEPTH_8U by default and not IPL_DEPTH_32F. This means that mImage is also IPL_DEPTH_8U, which is why your code is not working.