Digital Light & Color

I used the Add Border transformation to add a border to the left and right of an image, in preparation to warp a portion of the left and right edges of the image so that I would end up with an aspect ratio that I required. As shown in the screen-shot, even though the border pixels were only supposed to be added to the left and right edges, there is a white artifact added to the top of the resulting image.

Jeff

This may be an artifact of the display and not part of the underlying image. Does it go away at 1:1?

Unlike PWP 7 which zooms in past 1:1 by pixel replication, PWP 8 allows non-integer zoom factors so it fills the available space when zoomed to fit. The resulting image resampling can produce artifacts like the one you are seeing if you zoom past 1:1, but they are not part of the image. For photographic images, this is usually not noticeable, but for extremely sharp edges you can get a 1 pixel edge blur.

No. It's in there. See attached image.

OK, I do see a difference between PWP 7 and 8 -- I'll take a closer look.