List of Articles image processing Open Access Article Abstract Page Full-Text 1 - Converting RGB Images to Gray-Scale by the Weighted Average Method, based on Shift-and-Add Technique on the Combination of Color Components for Reducing the Computational Units and Errors in FPGA Mahdi Ajamin Hamednai Payam Sanaee Open Access Article Abstract Page Full-Text 2 - Robust Edge Detection Method with Subpixel Accuracy in Presence of Noise Masoud Alidoust Mansoor Zeinali Homayoun Mahdavi-Nasab 20.1001.1.23223871.1394.6.24.2.2 Open Access Article Abstract Page Full-Text 3 - Definition of Scatterer in Electromagnetic Wave Propagation Environment Using Image Processing Based on FDTD Method Mahmood Falah Ali Reza Malahzadeh 20.1001.1.23223871.1393.5.20.3.8 Open Access Article Abstract Page Full-Text 4 - Improvement of Industrial Radiography for Defect Detection of Oil and Gas Pipelines in Weld Regions by Image Processing Ali Reza Karimian Monir Torabian Mohammad Reza Yazdchi 20.1001.1.23223871.1389.1.2.7.8