ICALAB for Image Processing - benchmarks

The directory BENCHMARKS consists of a collection of color and grayscale images with various resolutions.

The images are saved individually and all collected in one MATLAB file NAME.mat in order to save time during loading.

You can download all benchmarks in matlab format (*mat), files tared and gzipped to one big file: benchmarks_2d.tgz (4.42MB).

The most interesting benchmarks are briefly described below.

Two-dimensional sine waves

sin2d

This color and grayscale benchmark contains 12 two-dimensional sine wave sources as illustrated in Fig. 1B.

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
color images sin2d_128x128_color.mat sin2d_128x128_color.mat.gz sin2d_128x128_color.tgz
grayscale images sin2d_128x128_gray.mat sin2d_128x128_gray.mat.gz sin2d_gray_128x128.tgz

3D view color image grayscale image

Fig. 1B Two-dimensional sine waves (sin2d)

Fig. 2B Full set of color two-dimensional sine waves (sin2d)

Fig. 3B Full set of grayscale two-dimensional sine waves (sin2d)

FWRsin2d

These color and grayscale benchmarks are similar to the sin2d benchmarks, but the 2-D sinewaves are full wave rectified (see Fig. 4B).

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
color images FWRsin2d_128x128_color.mat FWRsin2d_128x128_color.mat.gz FWRsin2d_128x128_color.tgz
grayscale images FWRsin2d_128x128_gray.mat FWRsin2d_128x128_gray.mat.gz FWRsin2d_gray_128x128.tgz

3D view color image grayscale image

Fig. 4B Full rectified two-dimensional sine waves (FWRsin2d)

HWRsin2d

These color and grayscale benchmarks are similar to the benchmarks sin2d, but the two-dimensional sine waves are half-wave rectified so the images become more sparsely distributed (see Fig. 5B).

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
color images HWRsin2d_128x128_color.mat HWRsin2d_128x128_color.mat.gz HWRsin2d_128x128_color.tgz
grayscale images HWRsin2d_128x128_gray.mat HWRsin2d_128x128_gray.mat.gz HWRsin2d_gray_128x128.tgz

3D view color image grayscale image

Fig. 5B Half rectified two-dimensional sine waves (HWRsin2d)

sin1d

These benchmarks are similar to the above benchmarks, but sine waves are one-dimensional (see Figs 6B, 7B, 8B).

type mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
sin1d color images sin1d_128x128_color.mat sin1d_128x128_color.mat.gz sin1d_128x128_color.tgz
grayscale images sin1d_128x128_gray.mat sin1d_128x128_gray.mat.gz sin1d_gray_128x128.tgz
full-rectified sin1d color images FWRsin1d_128x128_color.mat FWRsin1d_128x128_color.mat.gz FWRsin1d_128x128_color.tgz
grayscale images FWRsin1d_128x128_gray.mat FWRsin1d_128x128_gray.mat.gz FWRsin1d_gray_128x128.tgz
half-rectified sin1d color images HWRsin1d_128x128_color.mat HWRsin1d_128x128_color.mat.gz HWRsin1d_128x128_color.tgz
grayscale images HWRsin1d_128x128_gray.mat HWRsin1d_128x128_gray.mat.gz HWRsin1d_gray_128x128.tgz

3D view color image grayscale image

Fig. 6B One-dimensional sine waves (sin1d)

3D view color image grayscale image

Fig. 7B Full rectified one-dimensional sine waves (FWRsin1d)

3D view color image grayscale image

Fig. 8B Half rectified one-dimensional sine waves (HWRsin1d)

3D view color image grayscale image

Fig. 9B One-dimensional skewed sine waves (sin1d_skew)

3D view color image grayscale image

Fig. 10B Full rectified one-dimensional skewed sine waves (FWRsin1d)

3D view color image grayscale image

Fig. 11B Half rectified one-dimensional skewed sine waves (HWRsin1d_skew)

Sparse images

The benchmarks edges1d, edges1ds and edges2d consist of grayscale level "sparse" images representing regular edges. Please try any HOS ICA algorithm like SANG, JADE or FICA to extract such images from their mixtures.

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
grayscale images edges1d.mat edges1d.mat.gz edges1d.tgz

Fig. 12B Sparse images (edges1d)

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
grayscale images edges1ds.mat edges1ds.mat.gz edges1ds.tgz

Fig. 13B Sparse images (edges1ds)

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
grayscale images edges2d.mat edges2d.mat.gz edges2d.tgz

Fig. 14B Sparse images (edges1d)

Natural images

This benchmark consists of 10 natural images (e.g. faces, animals, objects) and two synthetically created noise images.

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
color images natural_images_128x128_color.mat natural_images_128x128_color.mat.gz natural_images_128x128_color.tgz
grayscale images natural_images_128x128_gray.mat natural_images_128x128_gray.mat.gz natural_images_gray_128x128.tgz

Fig. 15B Natural images

Textures

This benchmark consists of 16 typical textures.

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
color images textures_128x128_color.mat textures_128x128_color.mat.gz textures_128x128_color.tgz
grayscale images textures_128x128_gray.mat textures_128x128_gray.mat.gz textures_gray_128x128.tgz

Fig. 16B Textures

Human faces

Color human faces

This benchmark consists of 9 human faces selected from face databases of Psychology Department of University of Stirling

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
grayscale images faces_color.mat faces_color.mat.gz faces_color.tgz

Fig. 17B Human faces

Grayscale human faces

This benchmark consists of 6 human faces selected from face databases of Psychology Department of University of Stirling

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
grayscale images faces.mat faces.mat.gz faces.tgz

Fig. 18B Human faces

MRI images

These benchmarks consist each of 10 typical MRI images selected from databases of The MRI Tutor Web Site and The Whole Brain Atlas

mode matlab files (*.mat) gzipped matlab files (*.mat.gz) tared and gzipped tiff files (*.tgz)
color images MRI_color.mat MRI_color.mat.gz MRI_color.tgz
grayscale images MRI_gray.mat MRI_gray.mat.gz MRI_gray.tgz

Fig. 19B Color MRI images

Fig. 20B Grayscale MRI images

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