Make your own Café wall image

Move every slider. The measured values update beside the image. Download the result as a PNG.

Measured from the image

Sliders

Things to try

Drag the row shift to zero. Watch the mortar lines keep their place while the tilt goes away.
Set the mortar thickness to zero and see what remains of the tilt.
Move the mortar gray level toward black, then toward white. Compare the tilt each time.

At the default settings this image measures 520 by 334 px. The sweep on the Café wall page tracks Row shift as % of one tile (0 = no illusion, 50 = strongest) and marks these values as weak: 0 to 20, 80 to 100 %.

Slider ranges

Setting	Min	Default	Max
Tile size (px)	20	40	100
Number of tile rows	4	8	14
Tiles per row	6	12	20
Row shift as % of one tile (0 = no illusion, 50 = strongest)	0	50	100
Mortar line thickness (px, 0 removes it)	0	2	8
Mortar grey level	0	128	255

Your PNG carries a small bharamind.com credit strip under the image. Entertainment only. Not a vision or health test.