esp-idf/examples/peripherals/ledc/ledc_gamma_curve_fade/main/Kconfig.projbuild

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menu "Example Configuration"
config GAMMA_CORRECTION_WITH_LUT
bool "Use look up table to do gamma correction"
default n
help
By default, the gamma correction in the example is through math power operation. This requires computation
on embedded system. With this option enabled, gamma correction will be based on a look up table. Note that,
the look up table provided in the example is only for a Gamma factor of 2.6.
endmenu