Downloadable Perceptually Tuned Grayscale Characters

The downloadable files allow you to compare EPFL's perceptually-tuned grayscaling method with traditional grayscaling and bi-level characters. Download the files and visualize them on an LCD display.

Attention: all browsers resample the tiff files according to the browser's window size. Therefore download the file to your computer and view it in your preferred image editor (Photoshop, PaintShopPro, etc..). Resampling completely destroys the perceptually-tuned rayscaling character images.

To download the files, click on the file name with the right mouse button.