This paper presents the effects of image quality, given by the number of pixels used to define the image. A microaneurysm (MA) segmentation algorithm that has been shown to achieve about 90% sensitivity and specificity for clinical classification using high resolution images of those diabetic patients who present with MAs was applied to low resolution images to assess the effects of lower resolution of sensitivity and specificity. The low resolution (640 by 480 pixels) 45
B. Raman, Even S. Bursell, Mark Wilson, Gilberto Z