In this research paper, a comparative analysis of various image enhancement in the spatial domain techniques is performed which is based on the numerical values of three image quality metrics that are the Mean Squared Error (MSE), Peak Signal to Noise Ratio (PSNR) and the Structural Similarity for measuring the Image Quality (SSIM) in order to find the best technique among them so that the process of enhancing an image in the spatial domain can be done. The criteria for choosing the best technique are that it should have the minimum numerical value of Mean Squared Error (MSE) and maximum numerical value of Peak Signal to Noise Ratio (PSNR) and Structural Similarity for measuring the Image Quality (SSIM).
Keywords: image denoising, image enhancement in the spatial domain, image filtering, noise, pixel, traffic sign recognition
