Residual image for the classical gridder in wsclean (left panel) and the image domain gridder (right panel). The color-scale for both images is the same, ranging from –1.0e-05 Jy beam⁻¹ to 1.0e-05 Jybeam⁻¹. The rms value of the area in the box centered on the source is about 19 times lower for image domain gridding (7.6e-06 Jy beam⁻¹) than for classical gridding (1.3e-4 Jy beam⁻¹). The rms value over the entire image is about 17 times lower for image domain gridding (1.1e-06 Jy beam⁻¹) than for classical gridding (2.1e-05 Jy beam⁻¹)