Masking/filtering soil pixels from drone imagery in QGIS (Drones in agriculture series, 4/7)

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To determine health and size of plant canopies, it is important to remove soil values. This video covers how to eliminate soil pixels from drone data, so they do not influence vegetation indices and other data.

If you found these methods useful, please consider citing our recent paper in the journal Remote Sensing:

Parker, T. A., Palkovic, A., & Gepts, P. (2020). Determining the Genetic Control of Common Bean Early-Growth Rate Using Unmanned Aerial Vehicles. Remote Sensing, 12(11), 1748.
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Thank you very much for your videos, I hope you come back to provide more information about precision agriculture.

adrianalexanderveraesmeral
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**To get output of 4 bands (RGB and alpha band), thank you!!

saarreshef
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travis, one question for you: what do you think is the most accurate result, eliminating soil and then calculate NDVI or MSAVI2 in the whole plot?

capsulaproducciones
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hey travis, could you explain how you got the mask layer. Will you get it by performing some sort of image segmentation algorithm using deep learning?

sharannagarajan
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Another useful video. Thank youu!
Looking forward to seeing more videos of the Drones in agriculture series from you!

MrDukkee
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Could you please explain, how to get the true colour image after masking?

anarmilan
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Hi, very useful video, thank you!! I now have the mask and my RGB image, how can I clip the RGB from the mask?

saarreshef
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Thanks very much for this video, you saved me a heap of time in not masking out soil areas with a manually drawn shapefile mask. This worked a treat!

adamotoole_soilcquest
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Deat Travis Paker, Your videos have been very well explained. Please upload more videos

anarmilan
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Your videos helped me a lot
Thank you

Prascau
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Thank you, it was so helpful and well explained! You just made my work easier.

lauracastillo
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Hello Travis! First of all thanks for the videos 🙏
I encountered some problems when masking soil pixels. Somehow the division by 0 produces -3.40e+38 instead of NULL. Any idea how to fix this?

Jakolo