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/base/useriam/fingerprint_auth/services_ex/src/
H A Dsensor_illumination_task.cpp71 float gapAlphaDiff = BRIGHTNESS_AND_ALPHA[i][ALPHA_INDEX] - BRIGHTNESS_AND_ALPHA[i - 1][ALPHA_INDEX]; in GetBackgroundAlpha() local
72 float slope = gapAlphaDiff / gapBrightnessDiff; in GetBackgroundAlpha()

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