image pixels

Some terminals use device- or library-specific optimizations to render image data within a rectangular 2D area. This sometimes produces undesirable output, e.g. inter-pixel smoothing, bad clipping or missing edges. An example of this is the smoothing applied by web browsers when rendering svg images. The pixels keyword tells gnuplot to use generic code to render the image pixel-by-pixel. This rendering mode is slower and may result in larger output files, but should produce a consistent rendered view on all terminals. It may in particular be preferable for heatmaps with a small number of pixels. Example:

      plot 'data' with image pixels