LibGrid
Red 0.63–0.69$\mu m$ 30m
Green 0.525–0.605$\mu m$ 30m
Blue 0.450–0.515$\mu m$ 30m
RGB combined, 30m
Channel Combination
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The most common use case for processing imagery is to combine the red, green and blue channels of satellite imagery to yield an rgb image.
Landsat 7 example:
Red 0.63–0.69$\mu m$ 30m
Green 0.525–0.605$\mu m$ 30m
Blue 0.450–0.515$\mu m$ 30m
RGB combined, 30m
Problem: The spectral bands of the Landsat satellite do not match the natural spectrum exactly. For example, the red channel from 0.63–0.69$\mu m$ does not equal the natural red spectrum from 0.65–0.75$\mu m$.
As a result, the combined rgb images exhibit an unnatural pinkish tint.
To produce more natural looking images we need to apply advanced techniques.
← Linkage with CMake | ● | Advanced Use Cases →