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I have the highly and low detailed pictures:

enter image description here enter image description here

And I would like to make a smoothly transition between them, for exapmle, on the one side. I put them on top of each other (as laeyrs), make "Match Color", set "Fade", then add a layer mask and use "Gradient tool" for edge transparency. But nevertheless the result is not very good, especially when zooming in (last image). So, maybe there is a way to improve this (Even using programs other than Photoshop if necessary.)

enter image description here enter image description here

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  • Maybe not an easy question, but what exactly is “not good” about your attempt? Or why not just use the high detail picture?
    – Kris Van Bael
    Sep 2 at 22:02
  • I'm trying to make some highly detailed surface area among global Earth surface texture for a flight simulator, and the main purpose is the colour matching and making a smoothly transition between high and low textures as best as possible. I don't like transparency in my attempt. Maybe there're better ways.
    – misha.physics
    Sep 3 at 9:01

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In my opinion, your process is correct.

What you could try is, taking your high-resolution image, resampling it to, let's say half resolution, and making an intermediate step. Fade it the same way you did.

Complementing using the lens blur. https://helpx.adobe.com/photoshop/using/adjusting-image-sharpness-blur.html

The lens blur can make an increasing blur. You can make a selection or prepare a gradient to determine the zones that will recieve the blur. Apply it to a high-resolution image and stop when the look is similar to the low-resolution image.

Apply the low-resolution image as you already did.

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  • Thanks, I'll try. What I don't like in my attempt is transparency. I think about some blur with variable pixelization (if it's possible to do).
    – misha.physics
    Sep 3 at 9:12
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    Photoshop has a feature “lens blur” by which a soft mask can control the blur radius.
    – Kris Van Bael
    Sep 3 at 9:59
  • Another idea is to use map features (eg roads or edges of fields) to transition from one source to another.
    – Kris Van Bael
    Sep 3 at 10:01
  • @KrisVanBael, thanks, the first idea can be useful.
    – misha.physics
    Sep 3 at 14:20
  • @Rafael, thanks, I'd like to try this. Should I use the lens blur after my result with the gradient operation or instead of it? And sorry, what do you mean in "apply the low-resolution image"?
    – misha.physics
    Sep 4 at 19:27

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