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What is it nessesary to do if I want to see just black edges from background image in image placed on top?

Here are links to source images <a href="http://oi65.tinypic.com/xbzvhk.jpg">panorama</a><br> <a href="http://oi65.tinypic.com/29kvuvp.jpg">photo</a>

This is what I want to create:

<a href="http://oi63.tinypic.com/29maskz.jpg">Here</a>

You can see there are edges from background panorama mountains in picture on top.
Any ideas, please?

  • 3
    It is a bit unclear to me what you want to achieve. Can you give us a sketch of desired result? – Takkat Jan 27 '16 at 9:22
  • To put things in one place I edited this question with relevant information from your previous post. We can then delete your previous question (or, after an account merge you can also do that yourself). – Takkat Jan 27 '16 at 11:28
  • @Takkat thank you for edditing my questions! And don't you know how to solve it, please? – Petr Bečka Jan 27 '16 at 11:52
  • I am too busy with work at the office to guide you. If I understood it correctly you wanted to paint black outlines of mountains from the rendered source panorama on top of the destination photo? – Takkat Jan 27 '16 at 11:59
  • Yes, you understand it well. – Petr Bečka Jan 27 '16 at 12:01
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Try this:

  • Hide the second layer
  • Make the first layer grayscale
  • Use edge detection filters to highlight edges of the background landscape
  • Adjust levels and invert if necessary to get thin black lines on white background
  • Show the second layer and switch it to MULTIPLY mode

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