A method, apparatus and computer program product are provided to enhance medical images by utilizing an enhancement function in order to permit a user to more efficiently and effectively read the medical images and provide diagnostic or other information based upon the enhanced images. In the context of a method, a medical image is received that has a plurality of pixels with respective pixel values. The method also enhances the medical image utilizing an enhancement function. The enhancement function varies depending upon the pixel value of a respective pixel. For example, the enhancement function of one embodiment may be a piecewise function. As such, the method enhances the medical image by modifying a representation of the medical image in accordance with the enhancement function.