This test suite uses artificial brick textures generated by overlaying a random background texture and separating them by mortar. The background textures are generated by "bombing" a blank image with gaussian blobs of various elongations and orientations. These images exhibit macrotextures enabling algorithms favouring coarse detail to be measured.
The images are generated by the makeBrick program
with constant background elongations and rotations but varying
horizontal and vertical directions of the mortar. The first two tests
vary the dimensions about mean of x6y6 while the remaining three tests
vary the dimensions about a mean of x10y10.
| Test | Images ¹ |
|---|---|
| varyXY01 | x4y8 x8y4 [ e3, t0 ] |
| varyXY02 | x5y7 x7y5 [ e3, t0 ] |
| varyXY03 | x13y7 x7y13 [ e3, t0 ] |
| varyXY04 | x12y8 x8y12 [ e3, t0 ] |
| varyXY03 | x11y9 x9y11 [ e3, t0 ] |
¹ e = elongation ; t = theta ; x = x0,x1 ; y = y ; Common parameters are shown in square [] brackets