Electronic device and fingerprint image correction method

The invention provides an electronic device and a fingerprint image correction method. The electronic device comprises an optical fingerprint sensor and a processor. The optical fingerprint sensor is used for acquiring a fingerprint image. The processor is coupled to the optical fingerprint sensor. The processor determines a plurality of analog-to-digital converter values of a plurality of pixels of the fingerprint image according to the value mask to generate a comparison image. The processor compares the comparison image with the sample image to obtain a pressure degree classification corresponding to the fingerprint image. 本发明提供一种电子装置以及指纹影像校正方法。电子装置包括光学式指纹传感器以及处理器。光学式指纹传感器用以取得指纹影像。处理器耦接光学式指纹传感器。处理器根据数值遮罩对指纹影像的多个像素的多个模拟数字转换器数值进行判断，以产生比对影像。处理器比较比对影像与样本影像，以取得对应于指纹影像的压力程度分类。