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Changing a color palette in QGIS
Changing a color palette in QGIS

This article will show you how to change the colour palette of a specific data layer in QGIS

Updated over a week ago

Changing the color palette of a data layer

Drag and drop your thermal orthomosaic in the QGIS Layers box, and then right-click on the layer and select properties.

How to change the color palette in the QGIS Layers box

In Properties on the left menu bar, navigate to Symbology, as shown below.

How to change the color palette in QGIS Layers box

From here, you will need to change the following parameters:

  • Render type to Singleband pseudocolor

  • Band to Band 1 (Gray)

  • Color ramp to Magma (or your desired color scale).

Next, you will need to navigate to Histogram on the menu bar on the left, showing you the distribution of data on the layer.

  1. Calculate histogram

  2. Zoom in to Band 1 (red line) with the magnifying glass to define the min-max limits. Here you want to select the main 'peak' shown in the histogram.

Select the Main peak in the layers box

Note down the min & max values shown on the x-axis and then enter those values in Symbology Min โ€“ Max (Limits can be adjusted to each one's preference.

Finally, click on Apply or OK, and your thermal orthomosaic is ready.

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