This is my original image

enter image description here

I am adding another layer to fill in the gaps:

enter image description here

The black lines in the new layer looks a bit too defined. Any ideas how I can reduce their thickness so the new layer can fit in nicely?

  • can you add more details? what did you use, normal? why is this layer darker than the rest (I'm assuming you duplicated some other part of the image to fill the gap)?
    – Luciano
    Jun 16, 2021 at 8:16
  • Probably some Levels or Curves adjustment would do.
    – Joonas
    Jun 16, 2021 at 8:20
  • @Luciano I did not do anything. The image was taken at a different time with a different focal point
    – Tinker
    Jun 16, 2021 at 16:12

1 Answer 1


I think thickness isn't as big problem as much as the darkness of lines and temperature difference.

Simply create 1) Levels 2) Selective color 3) Contrast adjustment layers for the layer which has dark/thick lines. I didn't have a separate layer for the additional image, so I just made a selection and applied a mask for it (in your case, you likely have two different images. You won't need selection tool):

enter image description here

I would adjust the settings of adjustment layers like this, so that darkness and color of lines start matching the other layer (Levels is basically to fix extra brightness of the layer, because it feels that this layer has more sunshine and needs a bit shadow, Reducing contrast will help a bit to reduce lines width). After all these settings, you'll see this:

enter image description here

enter image description here

enter image description here

enter image description here

Now, I'll increase the feather of the masks of all layers a bit so it doesn't look like a sharp line. (In your case, you can mask the edge of main layer (which doesn't have the lines problem) with some feather).

Then, I'll mask the individual adjustment layer with a brush tool a bit where I feel the effect is too much, since we can't apply same adjustment for all areas. The result will look like this:

enter image description here

(I'll also try Hue/Saturation layer in case I feel some colors have been affected)

Alternatively, you can do the opposite settings on the other layer too. I mean increasing brightness and making lines more dark and more contrast in the layer. That will also do the trick.

You'll need to do this for each layer you want to fix, and each will require different types of adjustment amounts. I've done for one layer.

With high resolution images and separate layers, you'll have more control on finishing.

  • 1
    Thank you, this was great. I am new to photoshop so I am still unfamiliar with all the fine tuning
    – Tinker
    Jun 16, 2021 at 16:14
  • Glad that it helped. Once you'll experiment with masks and each adjustment layer settings, especially levels/curves and its mask, you'll understand how to fix such things.
    – Vikas
    Jun 16, 2021 at 16:21

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