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imageresizer

ImageResizing paddingColor adversely affects white balance

Is there a way to instruct the ImageResizer to apply white balance BEFORE padding? The padding appears to be affecting the white balance algorithm.

example:

http://z.zr.io/ri/fix/26s.jpg?width=530&a.balancewhite=true&paddingWidth=8&paddingColor=red http://z.zr.io/ri/fix/26s.jpg?width=530&a.balancewhite=true&paddingWidth=8&paddingColor=black

notice that the white balance is different, how can I get the white balance calculation to be the same no matter the padding color?

Solution

  • This is a confirmed bug in ImageResizer. Previously, all AdvancedFilters were applied to the canvas as a whole, instead of just the image region.

    It has been fixed in the develop branch, which targets 4.X releases, and includes behavioral changes like this. Public nightly builds should be available once our CI system is fully online.