1. A computer-implemented method for image display via a device having a reduced size display screen, said method comprising: setting, using a processor, an image display resolution to an initial display resolution by comparing an image dimension at a first resolution and a screen dimension of the reduced size display screen; based on a selected region of interest in an image, displaying the selected region of interest at the image display resolution; using the selected region of interest, displaying image data in the selected region of interest to set a plurality of data points via user interaction with a touchscreen display; computing, using a processor, a potential error introduced for a measurement between the plurality of data points based on a tolerance value; and adjusting the image display resolution and zoom based on the potential error.