Image acquisition was conducted using an office
scanner (Deskjet 1050A, Hewlett-Packard Comp., Palo
Alto, California) at a resolution of 1200 dpi. Usage of a
scanner has advantages such as it is less sensitive to
illumination variations and it does not require additional calibration processes (when it is turned on, it is
automatically calibrated). A total of 104 pepper seeds
for each variety were put on the scanner plate by
preventing overlaps. Figure 2 shows the order of image
processing tasks applied in this study.