using lossless mode, disables all options. 4. Cheetah – Enables coefficient reordering, context clustering, and heuristics for selecting DCT sizes and quantization steps. 5. Hare – Enables Gaborish Filtering and DCT heuristics. 7. Squirrel – Enables dots, patches and spline detection as well as context clustering. 8. Kitten – Optimizes the adaptive quantization for a psychovisual metric. 9. Tortoise – Enables allow you to quickly concentrate the particles towards the center or the edge of the spray area. Clustering amount: Positive values will make the particles concentrate towards the center of the spray area