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Strange behaviour of the heal tool

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3 comments

  • Walter Rowe
    Moderator
    Top Commenter

    This is a case where you may be better off with clone vs heal. Heal is blending with the underlying original pixels. Since the camper is white, it is lightening the source pixels to better match the target area's tone.

    1
  • Fabrizio Giudici (stoppingdown)

    While the white camper might be the problem and clone would probably work better, sometimes I have this kind of behaviour trying to heal parts of the sky (for instance branches — and sometimes it works, so the influence of the “healed” portion is not always obvious).

    BTW, if I want to heal a portion of image, what's under the mask should be not so relevant; what is relevant is the area around the mask that should be blended.

    0
  • Ian Wilson
    Moderator
    Top Commenter

    While you are right that it is what is round the healing target that matters, I suspect that it may be helpful not to paint too small an area for healing. If you paint only over the camper van with a small margin round it, what you are painting over is predominantly light, and the heal result you get is going to be light. The van is so large that quite a lot of the interior parts mask is surrounded by light pixels - only the other edges of the mask are surrounded by the darker green branches of the tree. The narrowish margin by which your mask goes beyond the outline of the van doesn't give the tool much to work with. I suspect that if you were to paint your mask much wider round the van the result might be a bit better, but of course in this scene that isn't really possible. Probably the Capture One healing tool would do a good job of removing the rock from the bottom left corner if you wanted to do that, but for removing such a large object as the van, you are asking it to go rather beyond what it is best at. Maybe pixel editors such as Affinity Photo or Photoshop have tools better suited to this task.

    (And if the scene were a bit different, Walter Rowe's suggestion of the clone tool is one I would agree with. But you'd have to work quite hard to build up a plausible reconstruction of the hidden parts of the tree using a clone tool. The Affinity Photo inpainting brush, or regenerative fill in newer versions of Photoshop, might deal with it in a fraction of the time.)

    Ian

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