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On one hand, satellite images are commonly coded on more than 8 bits to provide
the dynamic range required from shadows to clouds. On the other hand, image formats
in use for printing and display are usually limited to 8 bits. We need to convert the value
to enable a proper display. This is usually done using linear scaling. Of course, you have
to be aware that some information is lost in the process.
.. |image1| image:: /Output/QB_Toulouse_Ortho_PAN_casted.png
.. |image2| image:: /Output/QB_Toulouse_Ortho_PAN_rescaled.png
.. _Figure1:
+--------------------------+-------------------------+
| |image1| | |image2| |
+--------------------------+-------------------------+
On the left, the image obtained by truncated pixel values at the dynamic acceptable for a png file (between 0 and 255). On the right, the same image with a proper rescaling.
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