Canvas getImageData() in ePub3

Hi All,

I am using canvas in ePub3. I need to manipulate and update the pixels of the images.

I got an error after calling the method getImageData() of a canvas object. Below is the error:

Unable to get image data from canvas because the canvas has been tainted by cross-origin data.

Kindly let me know if you have any ideas.

Thanks in advance,