Analysis of Interpolation based Image In-painting Approaches
This is an incremental comparison of existing methods for image in-painting, relevant for researchers and practitioners in image processing.
This study compared interpolation algorithms like Cubic, Kriging, RBF, and HDMR for image in-painting to correct errors and noise in images, finding that Kriging and RBF performed better for large area losses based on metrics like PSNR and SSIM.
Interpolation and internal painting are one of the basic approaches in image internal painting, which is used to eliminate undesirable parts that occur in digital images or to enhance faulty parts. This study was designed to compare the interpolation algorithms used in image in-painting in the literature. Errors and noise generated on the colour and grayscale formats of some of the commonly used standard images in the literature were corrected by using Cubic, Kriging, Radial based function and High dimensional model representation approaches and the results were compared using standard image comparison criteria, namely, PSNR (peak signal-to-noise ratio), SSIM (Structural SIMilarity), Mean Square Error (MSE). According to the results obtained from the study, the absolute superiority of the methods against each other was not observed. However, Kriging and RBF interpolation give better results both for numerical data and visual evaluation for image in-painting problems with large area losses.