Program to take measurements form photos?

Discussion in 'Tele Home Depot' started by Chordophonic, Feb 13, 2014.

  1. Chordophonic

    Chordophonic Tele-Meister

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    In not sure if I dreamt this, but am pretty sure I read somewhere on here about a computer program that allowed you to take measurements of say a guitar body from a photo as long as you knew the actual length of something in the photo, and the program helped in some way to scale everything up to a usable size…...?

    Do I need to go lie in a darkened room?

    Paul
     
  2. DrASATele

    DrASATele Poster Extraordinaire

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  3. jonson

    jonson TDPRI Member

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  4. Chordophonic

    Chordophonic Tele-Meister

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    Dagnammit! Ive got a Mac! Doh!

    Paul
     
  5. DrASATele

    DrASATele Poster Extraordinaire

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    Me too, which is why I haven't spoken to how well some of those programs work.
     
  6. ecoli

    ecoli Tele-Meister

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    Not sure if Mac's have a program like Paint on Windows? If so, it's pretty straightforward. Here's what I do (in Paint):

    1. Open up pic of guitar
    2. Crop picture to the scale length of the guitar
    3. Go into Image Properties
    4. Select inches

    Now you know how long the picture's "scale length" is. Let's say it's 10", and you know you want a scale length of 25.5". Just divide 25.5 by 10, so 2.55. Now:

    1. Open your picture again
    2. Select resize
    3. Resize picture (by percentage) by 100x the number you calculated above (255 in our case). Make sure you do this in both the horizontal and vertical planes.

    Done. Print (minimize your border size and make sure it doesn't try to center it on you), cut and paste together.

    It may sound complicated, but really it's quite straightforward once you've gone through it. Of course, the smaller the original image, the more error you'll experience when scaling upwards, so try to get as large an original image as possible.
     
  7. Glen Smith

    Glen Smith RIP

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  8. Lars81

    Lars81 Tele-Meister

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    If you've got acces to an autocad like program you can rescale the picture to what ever scale you want and then print it or export it as a pdf file.
     
  9. BleedingGums

    BleedingGums TDPRI Member

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    If I understand the question correctly then Google Sketchup might be worth a look. With Sketchup, you can import an image and then scale it fairly accurately providing you know the true distance between two points in the picture (i.e. - distance between frets, between pickups, etc.). Once the image is scaled, you can then measure other points or trace outlines, etc. Sketchup is free so the price is right.
     
  10. adirondak5

    adirondak5 Wood Hoarder Extraordinaire

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  11. Chordophonic

    Chordophonic Tele-Meister

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    Thanks for the replies folks!

    Paul
     
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