Hi All - I am relatively new to WebODM. I have run several iterations using WebODM Lightning, however I continue to struggle to reach resolution anywhere the raw images being fed. See screen shot below of a drainage grate (raw image on right, ortho on left). I am running highest resolution (1 cm/pixel) and brown lens and believe there is plenty of overlap. Any thoughts would be appreciated. Thank you in advance.
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Hi Scott,
I’m also new to WebODM, but I will try to help.
Fisrt, I believe ortho is showing the requested 1cm/px resolution, it’s only my perception without the real data. But I also think the real GSD is lower than that, so there is enough available information for a higher resolution.
What if you remove gps exif data from images?
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Wow, your actual GSD is quite high!
Set your desired orthophoto resolution with the following option: --orthophoto-resolution 0.1 (0.1 being 0.1 cm – your dataset may require a different value), and then if that doesn’t work on it’s own, you may have to override the resolution estimates that ODM is doing by setting the --ignore-gsd flag.
The danger with --ignore-gsd is that it throws away some memory optimization and other goodies, so you may need more RAM, if your dataset is sufficiently large.
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Thank you for the feedback. I will give these a try today.
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Unfortunately, I am running in Ligthning…and the GUI throws error codes for anything under 1.0 for ortho photo-resolution and/or entering --ignore-gsd. I am thinking there is not any way around this for WebODM Lightning?
Thanks again.
Mmm. Yup. Lightning is probably restricted to help balance the demands on the system. You may have to self host, or rent a machine on the cloud.
If you want to test before doing so, shoot me a link to your data and I’ll process it one of my nodes so you can see the results.
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I ran some local attempts w/ smaller subsets and results are significantly improved. Bummed Lightning limits this…but understandable I suppose. Thanks again for your help!
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Hello I´m new to webodm,
How can I use the ignore GSD option? You killed it 
I had it on my computer but now i’m processing in a faculty PC with 500 Gig RAM and 28 cores.
Thank you
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--ignore-gsd Is available in loca nodes still. Make sure you aren’t accidentally pointing to the 
network which prohibits its use.
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Hello,
I’m not using the lightening network, just the 1 odm local node! I dont have GSD in the options menu, do I have to edit some Jason file? 
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Ignore-gsd is currently hidden in the latest WebODM version; a lot of memory issues were caused by it (mostly people choosing the flag without understanding the implications).
Can you tell us more about the need to set ignore-gsd? Are you getting bad results without it?
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Ahh. I hadn’t seen that: checked ODM itself.
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Hello,
Can someone tell me how to use the “ignore gsd” option? I have a set of images that I was asked to process in Agisoft and Webodm. In Agisoft I get an ortho with good resolution (3 cm/pix) but in webodm the image looks blurry and the maximum resolution is (9 cm/pix), even with quality settings, PC ultra and features ultra.
The memory in this case is not a problem, the PC has 500 G. of RAM and 28 cores.
Tank You 
Can you post the settings you used?
What is the GSD of the original images?
Hello
Sorry for the delay, I’ have been using different settings, all with similar results. I have to prepare a tutorial for webodm to be used in an African country, they will be surveying with a Phantom 4 and will have access to a powerful computer (occasionally). What would be the recommended (ortho) settings, both, for a computer with high and mediam RAM?
Thank you very much
Here are some settings i have been using:
Also, i don’t real know the true GSD 
but I was told to set 12mm of Focal Length on the camara settings in Agisoft. This is the Metadata from one image:
What height AGL were you flying, and what drone was used? 9cm GSD suggests a very high flight, or else the images have been resized, reducing the resolution.
176 meters !
9cm GSD still seems rather high, typically I’d expect about half that.
Hello,
Can someone tell me how can I try to use the “ignore gsd” option on webodm? For instance, can I add a new local node and edit the json File!??