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Using Magic Lantern => General Help Q&A => Topic started by: Chele on January 31, 2018, 05:47:56 AM

Title: Is it possible to draw a line in the image when the picture is taken? 6D
Post by: Chele on January 31, 2018, 05:47:56 AM
Hello Ladies and Gents,

We have a special project coming up and we need to have a line, or grid, drawn in the picture as it is taken.  This is for technical purposes -- the line(s) will be use as reference points in the final product.  Ideally, the line would be through the center, but at the end of the day, I don't really care where the line is so long as it's always in the same spot.  I know it can be done after the fact, but would like to do it as the pictures are taken.  As you can tell, aesthetics are not exactly an issue:)

Is ML able to do something like this?

TIA for any help you might provide!
Title: Re: Is it possible to draw a line in the image when the picture is taken? 6D
Post by: a1ex on January 31, 2018, 09:31:33 AM
You mean, to alter the image that gets saved into CR2 or JPG?

That's possible - there is an older attempt to preview Dual ISO shots (https://www.magiclantern.fm/forum/index.php?topic=8667.msg81386#msg81386) that had a bug doing exactly what you request :D (there were unwanted horizontal lines in the image)

The experiment didn't turn out very well (lots of stability issues that I couldn't troubleshoot back then), but the source is still available as a proof of concept on how to alter the image before it gets saved. It's not implemented in current source tree.
Title: Re: Is it possible to draw a line in the image when the picture is taken? 6D
Post by: Levas on January 31, 2018, 05:14:26 PM
I'm not sure how you need this line or grid.
But in the Canon Digital Photo Professional 4 software (which came with your 6d, or you can download for free on canon website with your 6d serial number).
you can display a grid over your photos(menu bar at the top -> preview -> grid), and you can customise the grid (menu bar at the top -> tools -> grid display settings).

Problem however is that you can not export the photo with this grid, so the grid is only visible in the Digital Photo Professional 4 software.

Title: Re: Is it possible to draw a line in the image when the picture is taken? 6D
Post by: Chele on February 01, 2018, 05:35:56 AM
Alex,

Yes, we want to alter the image as it's being taken.

Levas,
I have access to imaging software, however, we want to do it in-camera, not after the fact.

Thanks for your replies.  I would be very surprised if this is even possible as it goes against the norm.