Upper: rSDSS (J-PLUS), J-PLUS (2D), PHANGS-MUSE (2D), and PHANGS-MUSE (3D) Hα+[NII] map of NGC 1087 (left) and NGC 628 (right). Middle: radial profiles of Hα+[NII] maps from J-PLUS (2D), PHANGS-MUSE (2D) and PHANGS-MUSE (3D). Lower: the ratio of the radial profiles between J-PLUS and PHANGS-MUSE Hα+[NII] maps. The center and radius of 100 pixels are labeled with red and white circles respectively. Note that emaps are in the same flux scale except rSDSS.