PROBLEM TO BE SOLVED: To provide a stereoscopic image processing device that presents a high-quality stereoscopic image by determining a disadvantage in the stereoscopic image more accurately, and to provide a stereoscopic image pickup device, and a stereoscopic image display device.SOLUTION: A stereoscopic image processing device includes: an image acquiring part (10) for acquiring a parallax image; a subject extraction part (20) for extracting at least a first subject and a second subject in the parallax image acquired by the image acquiring part; a parallax amount calculation part (40) for calculating the amount of parallax between the first subject and the second subject extracted by the subject extraction part; and a stereoscopic effect determination part (50) that uses the amount of parallax between the first and second subjects calculated by the parallax amount calculation part to determine the presence of stereoscopic effect when a difference in parallax between the first and second subjects is equal to or larger than a predetermined value, and determines the absence of stereoscopic effect when it is less than the predetermined value.
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