Find the sharpest spot in your photos (and overall photo sharpness) - a simple batch method

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  • čas přidán 5. 09. 2024
  • I present a simple-to-use method for determining the sharpest region in your photo (indicating where you focused) and assessing the overall photo sharpness. The method automatically calculates sharpness values for all photos in the current folder. The results are presented both graphically and numerically, allowing you to easily identify the best photos from your collection. In the accompanying video, I provide step-by-step instructions for setting up my photo sharpness tool. It's user-friendly! You can download it from the link provided in the LINKS section below.
    ATTN! In the video I talk about a sharpness script (sharpest_region.py) that uses Sobel operators. I have created another version of this script (sharpest_region2.py) that uses Laplacian operator (and you can also download it below). The scripts both work the same way and one is not better than the other. They use different algorithms and which one is better may depend on the particular type of photo. Give them both a try. The sharpest_region.py is less sensitive to noise and is my preference, but the sharpest_region2.py is able to better detect sharper edges.
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    *** If you like this video, please consider SUBSCRIBING to my channel
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    LINKS (read the text above as well):
    * Download the SHARPNESS SCRIPT (sharpest_region.py, using Sobel operators) here:
    drive.google.c...
    * Download the NEW SHARPNESS SCRIPT (sharpest_region2.py, using Laplacian operator) here:
    drive.google.c...
    * Algorithm (Sobel) description: drive.google.c...
    * How to install Python: • A quick method for mea...
    (Watch until 7:05)
    * Running a Python script on Mac or Linux: • A quick method for mea...
    (Watch until time 4:04)
    * Running a Python script on Windows: • A quick method for mea...
    (Watch until time 5:58)
    * Troubleshooting id script won’t run: • A quick method for mea...
    (Watch until 7:24)
    * A fast script to measure photo sharpness: • A quick method for mea...
    PR_127

Komentáře • 6

  • @badger67
    @badger67 Před 8 měsíci +1

    Wow.
    That's fantastic Tom.
    I'll have a look and play.

    • @tom_photo
      @tom_photo  Před 8 měsíci +1

      Hi! That's great. I hope you find it useful.

  • @sclogse1
    @sclogse1 Před 8 měsíci +1

    Only Tom has this stuff. And maybe astrophysicists. Or robotics engineers. I'll be curious as how this correlates to motion blur, or more specifically camera movement.

    • @tom_photo
      @tom_photo  Před 8 měsíci

      Hello! These are good questions. I've been using sharpness scripts to detect motion blur. If I have two photos that were framed and focused identically, then overall sharpness differences correlate well with motion blur. If the two photos were focused the same way but not framed exactly the same (but still quite similarly), then the local sharpness of the sharpest regions is a good proxy for motion blur. I have to look, but I think there must be specialized motion blur measuring tools out there. Cheers!

  • @BUY_YOUTUBE_VIEWS_143z
    @BUY_YOUTUBE_VIEWS_143z Před 8 měsíci +1

    I'm hitting the replay button right now.

    • @tom_photo
      @tom_photo  Před 8 měsíci

      Hi! Thank you very much for watching. Kind regards!