You can:

• Enlarge the image with the mouse wheel or fingers
• Rotate the image with the Rotate slider
• Flip image horizontally and vertically

After that, you need to press [Crop & to Step2]
and you will automatically go to Step 2.

You can fine-tune the image with the effect sliders and preset buttons.
This greatly affects the results that you will see by clicking [Upload] on Step 3.
S-ART works only with grayscale images, and it cannot automatically adjust the contrast or brightness, uses the image "as is".
All in your hands!
Tip: If your image is white around the edges,"Vignette" can help you achieve great results.

Strings - the number of iterations. S-ART fuzzy algorithm, the total number of strings will be +/- 70 from the set by the slider.
d-Force - is an empirical factor, "dark areas thickening force".
Refiner - it clears the result of "bad" strings and adds "good" ones. A smaller value will give better results, but will increase the calculation time.
It may take you a few tries to get a really impressive result.
Tip: If the picture becomes "cloudy", try decreasing the number of Strings or decreasing the d-Force.