1. Although the economic analysis may not differ, if the case is based on a failure of the board to have exercised the duty of care in approving the transaction, the business judgment rule is likely to apply, thus placing the burden of proof upon the plaintiff shareholder and causing the plaintiff to have to overcome the presumption of good-faith decision making that the business judgment rule provides;Cohen v. Ayers, 590 F.2d 733
2. Affine Moment Invariants in 2D and 3D