Extended Outex texture classification test suites

The following classification test suites are derived from Outex color texture images. Their are motivated by the following remarks:

Note: Only the original test suites Outex_TC_00010—14, that use a window size of 128×128 pixels, are regenerated and/or extended below.

Table 1: Classification test suites with variations in acquisition conditions

Test suite ID Image type Textures Illuminants Rotations (°) Resolutions (dpi) Number of train images Number of test images Link Remarks
Outex_TC_00010-r Gray-level 24 textures Inca 00,05,10,15,30,45,60,75,90 100 480 (20×24) 3840 (8×20×24) Download Original Outex_TC_00010 regenerated from color images
Outex_TC_00010-c Color 24 textures Inca 00,05,10,15,30,45,60,75,90 100 480 (20×24) 3840 (8×20×24) Download Color counterpart of original Outex_TC_00010
Outex_TC_00011-r Gray-level 24 textures Inca 00 100, 120 480 (20×24) 480 (20×24) Download Original Outex_TC_00011 regenerated from color images
Outex_TC_00012-i Gray-level 24 textures Inca, Horizon, TL84 00 100 480 (20×24) 480 (20×24) or 960 (2×20×24) Download Original Outex_TC_00012 regenerated from color images, with illuminant variations only and 3 problems (illuminant of test images: horizon, TL84, or both)
Outex_TC_00013-l Gray-level 68 textures Inca 00 100 680 (10×68) 680 (10×68) Download Gray-level version of original Outex_TC_00013
Outex_TC_00020 Gray-level 68 textures Inca 00, 05, 10, 15, 30, 45, 60, 75, 90 100 1360 (20×68) 10880 (8×20×68) Download Above Outex_TC_00010-r extended to 68 classes
Outex_TC_00021 Gray-level 68 textures Inca 00 100, 120 1360 (20×68) 1360 (20×68) Download Above Outex_TC_00011-r extended to 68 classes
Outex_TC_00024 Gray-level 68 textures Inca, Horizon, TL84 00 100 1360 (20×68) 1360 (20×68) or 2720 (2×20×68) Download Above Outex_TC_00012-i extended to 68 classes
Outex_TC_00030 Color 68 textures Inca 00, 05, 10, 15, 30, 45, 60, 75, 90 100 1360 (20×68) 10880 (8×20×68) Download Color version of above Outex_TC_00020
Outex_TC_00031 Color 68 textures Inca 00 100, 120 1360 (20×68) 1360 (20×68) Download Color version of above Outex_TC_00021
Outex_TC_00034 Color 68 textures Inca, Horizon, TL84 00 100 1360 (20×68) 1360 (20×68) or 2720 (2×20×68) Download Color version of above Outex_TC_00024, i.e., original Outex_TC_00014 with 3 problems

Table 2: Classification test suites with specific degradations of test images

Test suite ID Image type Textures Noise Blur Number of train images Number of test images Link Remarks
Outex_TC_00011-n Gray-level 24 textures Gaussian, σ=5 none 480 (20×24) 480 (20×24) Download Generated from above Outex_TC_00011-r
Outex_TC_00022 Gray-level 68 textures Gaussian, σ=5 none 1360 (20×68) 1360 (20×68) Download Generated from above Outex_TC_00013-l
Outex_TC_00023 Gray-level 68 textures none Gaussian, ρ=0.5 1360 (20×68) 1360 (20×68) Download Generated from above Outex_TC_00013-l. ρ: radius of decay of Gaussian filter
Outex_TC_00032 Color 68 textures Gaussian, σ=5 none 1360 (20×68) 1360 (20×68) Download Generated from original Outex_TC_00013
Outex_TC_00033 Color 68 textures none Gaussian, ρ=0.5 1360 (20×68) 1360 (20×68) Download Generated from original Outex_TC_00013