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RGB reflectance ranges for proper RGB layer display on QGIS

  • December 10, 2024
  • 2 replies
  • 591 views

Varaha_RS
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I am having trouble in getting a clear display of a true color composite (TCI) of a harvested farm in north of India in QGIS. I am using Planetscope image of 2024 from the 8-band Superdove collection. This is a 2.5 acre farm. The TCI content is getting obscured by rainbow effect (‘Unclear.png’). The band ranges and other symbology details are given in ‘Unclear_specs.png’). I have attached a screenshot of the metadata of this farm for reference (‘Unclear_metadata.png’). What band value ranges or other parameters should I edit to see a clearer image?

FYR, I have attached screenshots in the three categories for a larger farm (14 acres) that is harvested in one plot and tilled in other plots: Clear_14ac.png, Clear_14ac_specs.png, Clear_14ac_metadata.png. This farm has a very clear view. The clear confidence percent for this image is 95 as compared to the unclear farm (85) but that should not produce such a drastic difference in clarity given the clear percent in both images is 100.

Please help me with getting the right display of the unclear TCI.

Best answer by elyhienrich

To others facing the same issue: 

The display issue in QGIS arises from the default stretching system applied to each layer based on pixel values. To ensure consistent color ranges, copy and paste the symbology from a layer with an ideal display.
This can be done by right-clicking the reference raster layer, selecting **Styles > Copy Style**, and pasting the style onto other raster layers.
Additionally, surface reflectance is unsuitable for RGB visualization; consider downloading "visual" assets for better visualization. Let us know if you have further questions!

2 replies

elyhienrich
Community Manager 🌎
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  • Community Manager 🌎
  • December 10, 2024

Hi ​@Varaha_RS 

We believe support will be able to best help you, we have created a support ticket on your behalf and copied the email you have used here on Planet Community. 


elyhienrich
Community Manager 🌎
Forum|alt.badge.img+17
  • Community Manager 🌎
  • Answer
  • March 6, 2025

To others facing the same issue: 

The display issue in QGIS arises from the default stretching system applied to each layer based on pixel values. To ensure consistent color ranges, copy and paste the symbology from a layer with an ideal display.
This can be done by right-clicking the reference raster layer, selecting **Styles > Copy Style**, and pasting the style onto other raster layers.
Additionally, surface reflectance is unsuitable for RGB visualization; consider downloading "visual" assets for better visualization. Let us know if you have further questions!