Web Images

Collection of still PNG and animated GIF images gathered on the Internet and from other sources.

Tags

Each image belongs to at least one of these categories as described in the images.csv table:

• Translucent
• Animated
• Camera-captured
• Scan
• Synthetic
• Up-to-128x128px
• Screen-captured
• Medical
• Gaming
• Emoji
• High-bit-depth (more than 8 bits per pixel per channel when uncompressed)

Visualizer

The images can be listed by category using the grid viewer.

Preprocessing

Medical imaging resources were converted to PNG using Python and the nibabel and cv2 dependencies:

image = cv2.resize(nibabel.load().get_fdata()[shape0,shape1,shape2], (dimension0, dimension1))
cv2.imwrite(png_path, image / (image.max() / 255))

All PNG files were stripped of any metadata using the optipng command line tool:

optipng -clobber -strip all

License

Each image has its own license, copyright and credits as described in the images.csv table.

The image list itself is licensed under the Creative Commons license Attribution-ShareAlike 4.0 International.

See the LICENSE file.