A computer-implemented method for displaying an enhanced image of post-stack seismic data represented by a seismic attribute, the method comprising: selecting a post-stack seismic data trace from the post-stack seismic data using an input device, the post-stack seismic data trace representing a gather of pre-stack seismic data traces; displaying the gather on a display device; selecting, using the input device, a feature for a horizon of interest represented by the gather; selecting the feature comprising selecting a feature of a variation of an attribute of the seismic data of the gather with the offset or the angle; plotting the feature; selecting another post-stack seismic data trace from the post-stack seismic data, the another post-stack seismic data trace representing another gather of pre-stack seismic data traces; displaying the another gather on the display device; selecting, using the input device, another feature for the horizon of interest represented by the another gather; selecting the another feature comprising selecting a feature of a variation of an attribute of the seismic data of the gather with the offset or the angle; plotting the another feature; the method characterized by further comprising: grouping the plotted feature and the plotted another feature to form an enhanced image, the enhanced image including a horizontal axis for the values of the attribute of the seismic data of the gather and a vertical axis for offset values or angle values; grouping meaning positioning at a location that corresponds with the location of the respective post-stack seismic data trace, and displaying, on the display device, the enhanced image in vertical alignment with the image of the post-stack seismic data, where the horizon of interest is highlighted, the plotted feature and the another plotted feature aligned respectively with the post-stack seismic data trace and the another post-stack seismic data trace. selecting a post-stack seismic data trace from the post-stack seismic data using an input device, the post-stack seismic data trace representing a gather of pre-stack seismic data traces; displaying the gather on a display device; selecting, using the input device, a feature for a horizon of interest represented by the gather; selecting the feature comprising selecting a feature of a variation of an attribute of the seismic data of the gather with the offset or the angle; plotting the feature; selecting another post-stack seismic data trace from the post-stack seismic data, the another post-stack seismic data trace representing another gather of pre-stack seismic data traces; displaying the another gather on the display device; selecting, using the input device, another feature for the horizon of interest represented by the another gather; selecting the another feature comprising selecting a feature of a variation of an attribute of the seismic data of the gather with the offset or the angle; plotting the another feature; grouping the plotted feature and the plotted another feature to form an enhanced image, the enhanced image including a horizontal axis for the values of the attribute of the seismic data of the gather and a vertical axis for offset values or angle values; grouping meaning positioning at a location that corresponds with the location of the respective post-stack seismic data trace, and displaying, on the display device, the enhanced image in vertical alignment with the image of the post-stack seismic data, where the horizon of interest is highlighted, the plotted feature and the another plotted feature aligned respectively with the post-stack seismic data trace and the another post-stack seismic data trace.