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Fingerprint image processing method, optical fingerprint identification system and electronic device
Fingerprint image processing method, optical fingerprint identification system and electronic device
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机译:指纹图像处理方法,光学指纹识别系统和电子设备
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摘要
The present application provides a fingerprint image processing method, applied in an optical fingerprint identification system of an electronic device. The electronic device comprises a display pixel array. The optical fingerprint identification system comprises an image sensing array. The image sensing array is disposed under the display pixel array. The fingerprint image processing method comprises obtaining a background image and obtaining at least an interfering frequency when the display panel is not pressed by a finger of a user; receiving a received image when the display panel is pressed by the finger of the user; performing a subtracting operation on the received image and the background image to obtain a difference image; and performing a filtering operation on the difference image at the at least an interfering frequency to obtain an operational result.
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